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Cover Page - USD ($)	12 Months Ended
Cover Page - USD ($)	Dec. 31, 2019	Feb. 24, 2020	Jun. 28, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	0-25346
Entity Registrant Name	ACI WORLDWIDE, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-0772104
Entity Address, Address Line One	3520 Kraft Rd,
Entity Address, Address Line Two	Suite 300
Entity Address, City or Town	Naples,
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	34105
City Area Code	239
Local Phone Number	403-4660
Title of 12(b) Security	Common Stock, $0.005 par value
Trading Symbol	ACIW
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 3,506,264,959
Entity Common Stock, Shares Outstanding		116,130,399
Documents Incorporated by Reference	Documents Incorporated by Reference – Portions of the registrant’s definitive Proxy Statement for the Annual Meeting of Shareholders to be held on June 9, 2020, are incorporated by reference in Part III of this report. This registrant’s Proxy Statement will be filed with the Securities and Exchange Commission pursuant to Regulation 14A.
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Central Index Key	0000935036
Current Fiscal Year End Date	--12-31

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 121,398	$ 148,502
Receivables, net of allowances of $5,149 and $3,912, respectively	359,197	348,182
Settlement assets	391,039	32,256
Prepaid expenses	24,542	23,277
Other current assets	24,200	14,260
Total current assets	920,376	566,477
Noncurrent assets
Accrued receivables, net	213,041	189,010
Property and equipment, net	70,380	72,729
Operating lease right-of-use assets	57,382	0
Software, net	234,517	137,228
Goodwill	1,280,525	909,691
Intangible assets, net	356,969	168,127
Deferred income taxes, net	51,611	27,048
Other noncurrent assets	72,733	52,145
TOTAL ASSETS	3,257,534	2,122,455
Current liabilities
Accounts payable	37,010	39,602
Settlement liabilities	368,719	31,605
Employee compensation	29,318	38,115
Current portion of long-term debt	34,148	20,767
Deferred revenue	65,784	104,843
Other current liabilities	76,971	61,688
Total current liabilities	611,950	296,620
Noncurrent liabilities
Deferred revenue	53,155	51,292
Long-term debt	1,339,007	650,989
Deferred income taxes, net	32,053	31,715
Operating lease liabilities	46,766	0
Other noncurrent liabilities	44,635	43,608
Total liabilities	2,127,566	1,074,224
Commitments and contingencies (Note 15)
Stockholders’ equity
Preferred stock; $0.01 par value; 5,000,000 shares authorized; no shares issued at December 31, 2019 and 2018	0	0
Common stock; $0.005 par value; 280,000,000 shares authorized; 140,525,055 shares issued at December 31, 2019 and 2018	702	702
Additional paid-in capital	667,658	632,235
Retained earnings	930,830	863,768
Treasury stock, at cost, 24,538,703 and 24,401,694 shares at December 31, 2019 and 2018, respectively	(377,639)	(355,857)
Accumulated other comprehensive loss	(91,583)	(92,617)
Total stockholders’ equity	1,129,968	1,048,231
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 3,257,534	$ 2,122,455

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Receivables, net of allowances of $5,149 and $3,912, respectively	$ 5,149	$ 3,912
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.005	$ 0.005
Common stock, shares authorized (in shares)	280,000,000	280,000,000
Common stock, shares issued (in shares)	140,525,055	140,525,055
Treasury stock, shares (in shares)	24,538,703	24,401,694

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands, $ in Thousands

3 Months Ended

12 Months Ended

Dec. 31, 2019

Sep. 30, 2019

Jun. 30, 2019

Mar. 31, 2019

Dec. 31, 2018

Sep. 30, 2018

Jun. 30, 2018

Mar. 31, 2018

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2017

Revenues

Total revenues

$ 399,920

$ 354,901

$ 297,618

$ 205,855

$ 319,950

$ 245,525

$ 234,995

$ 209,310

$ 1,258,294

$ 1,009,780

$ 1,024,191

Operating expenses

Cost of revenue

173,104

174,168

155,240

114,941

104,281

102,473

116,261

107,336

617,453

^[1]

430,351

^[1]

452,286

^[1]

Research and development

34,601

36,543

39,235

36,194

32,969

36,008

37,862

36,791

146,573

143,630

136,921

Selling and marketing

30,875

30,417

32,962

29,430

24,576

28,252

33,160

31,893

123,684

117,881

107,885

General and administrative

27,174

27,286

49,319

31,517

20,399

29,537

28,837

28,649

135,296

107,422

153,032

Depreciation and amortization

31,753

31,169

26,744

21,866

21,311

20,896

21,033

21,345

111,532

84,585

89,427

Total operating expenses

297,507

299,583

303,500

233,948

203,536

217,166

237,153

226,014

1,134,538

883,869

939,551

Operating income

102,413

55,318

(5,882)

(28,093)

116,414

28,359

(2,158)

(16,704)

123,756

125,911

84,640

Other income (expense)

Interest expense

(18,109)

(18,987)

(15,323)

(11,614)

(9,875)

(12,573)

(9,717)

(9,365)

(64,033)

(41,530)

(39,013)

Interest income

2,949

2,988

2,997

3,033

2,893

2,763

2,742

2,744

11,967

11,142

564

Other, net

3,399

(2,369)

1,402

(1,912)

(688)

(1,304)

(1,677)

(55)

520

(3,724)

(2,619)

Total other income (expense)

(11,761)

(18,368)

(10,924)

(10,493)

(7,670)

(11,114)

(8,652)

(6,676)

(51,546)

(34,112)

(41,068)

Income before income taxes

90,652

36,950

(16,806)

(38,586)

108,744

17,245

(10,810)

(23,380)

72,210

91,799

43,572

Income tax expense

35,166

5,136

(22,531)

(12,623)

21,054

2,012

3,764

(3,952)

5,148

22,878

38,437

Net income

$ 55,486

$ 31,814

$ 5,725

$ (25,963)

$ 87,690

$ 15,233

$ (14,574)

$ (19,428)

$ 67,062

$ 68,921

$ 5,135

Income per common share

Basic (in dollars per share)

$ 0.48

$ 0.27

$ 0.05

$ (0.22)

$ 0.76

$ 0.13

$ (0.13)

$ (0.17)

$ 0.58

$ 0.59

$ 0.04

Diluted (in dollars per share)

$ 0.47

$ 0.27

$ 0.05

$ (0.22)

$ 0.74

$ 0.13

$ (0.13)

$ (0.17)

$ 0.57

$ 0.59

$ 0.04

Weighted average common shares outstanding

Basic (in shares)

116,175

116,057

118,059

Diluted (in shares)

118,571

117,632

119,444

Software as a service and platform as a service

Revenues

Total revenues

$ 203,661

$ 192,952

$ 172,499

$ 108,557

$ 110,626

$ 104,519

$ 113,600

$ 104,280

$ 677,669

$ 433,025

$ 425,572

License

Revenues

Total revenues

122,584

92,058

52,541

21,078

137,991

68,964

45,555

28,046

288,261

280,556

293,124

Maintenance

Revenues

Total revenues

53,738

52,638

51,922

55,111

53,065

54,373

55,048

56,659

213,409

219,145

222,071

Services

Revenues

Total revenues

$ 19,937

$ 17,253

$ 20,656

$ 21,109

$ 18,268

$ 17,669

$ 20,792

$ 20,325

$ 78,955

$ 77,054

$ 83,424

[1]	The cost of revenue excludes charges for depreciation but includes amortization of purchased and developed software for resale.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 67,062	$ 68,921	$ 5,135
Other comprehensive income (loss):
Foreign currency translation adjustments	1,034	(15,261)	16,744
Total other comprehensive income (loss)	1,034	(15,261)	16,744
Comprehensive income	$ 68,096	$ 53,660	$ 21,879

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2016	$ 754,917	$ 702	$ 600,344	$ 545,731	$ (297,760)	$ (94,100)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	5,135			5,135
Other comprehensive income (loss)	16,744					16,744
Stock-based compensation	13,683		13,683
Shares issued and forfeited, net, under stock plans, including income tax benefits	16,816		(3,682)		20,498
Repurchase of common stock	(37,387)				(37,387)
Repurchase of stock-based compensation awards for tax withholdings	(5,311)				(5,311)
Ending balance at Dec. 31, 2017	764,597	702	610,345	550,866	(319,960)	(77,356)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	68,921			68,921
Other comprehensive income (loss)	(15,261)					(15,261)
Stock-based compensation	20,360		20,360
Shares issued and forfeited, net, under stock plans, including income tax benefits	22,748		1,530		21,218
Repurchase of common stock	(54,527)				(54,527)
Repurchase of stock-based compensation awards for tax withholdings	(2,588)				(2,588)
Cumulative effect of accounting change, ASC 606	243,981			243,981
Ending balance at Dec. 31, 2018	1,048,231	702	632,235	863,768	(355,857)	(92,617)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	67,062			67,062
Other comprehensive income (loss)	1,034					1,034
Stock-based compensation	36,763		36,763
Shares issued and forfeited, net, under stock plans, including income tax benefits	16,481		(1,340)		17,821
Repurchase of common stock	(35,617)				(35,617)
Repurchase of stock-based compensation awards for tax withholdings	(3,986)				(3,986)
Ending balance at Dec. 31, 2019	$ 1,129,968	$ 702	$ 667,658	$ 930,830	$ (377,639)	$ (91,583)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - shares	12 Months Ended			22 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Repurchase of common stock (in shares)	1,228,102	2,346,427	1,653,573	45,357,495

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 67,062	$ 68,921	$ 5,135
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation	24,092	23,805	24,871
Amortization	98,477	73,545	77,353
Amortization of operating lease right-of-use assets	15,934	0	0
Amortization of deferred debt issuance costs	4,128	4,637	4,286
Deferred income taxes	(22,140)	(5,734)	21,660
Stock-based compensation expense	36,763	20,360	13,683
Other	5,175	2,007	435
Changes in operating assets and liabilities, net of impact of acquisitions:
Receivables	(19,054)	(14,760)	(8,243)
Accounts payable	(7,703)	5,766	(1,700)
Accrued employee compensation	(10,829)	(9,684)	94
Current income taxes	(1,137)	(5,115)	(4,227)
Deferred revenue	(37,561)	14,219	439
Other current and noncurrent assets and liabilities	(15,558)	5,965	12,411
Net cash flows from operating activities	137,649	183,932	146,197
Cash flows from investing activities:
Purchases of property and equipment	(23,099)	(18,265)	(25,717)
Purchases of software and distribution rights	(24,915)	(25,628)	(28,697)
Acquisition of businesses, net of cash acquired	(757,268)	0	0
Other	(25,199)	(1,467)	0
Net cash flows from investing activities	(830,481)	(45,360)	(54,414)
Cash flows from financing activities:
Proceeds from issuance of common stock	3,591	3,098	2,958
Proceeds from exercises of stock options	12,985	19,674	13,872
Repurchase of stock-based compensation awards for tax withholdings	(3,986)	(2,588)	(5,311)
Repurchase of common stock	(35,617)	(54,527)	(37,387)
Proceeds from senior notes	0	400,000	0
Redemption of senior notes	0	(300,000)	0
Proceeds from revolving credit facility	280,000	109,000	67,000
Repayments of revolving credit facility	(41,000)	(111,000)	(153,000)
Proceeds from term portion of credit agreement	500,000	0	415,000
Repayments of term portion of credit agreement	(28,900)	(109,289)	(386,040)
Payment for debt issuance costs	(12,830)	(7,319)	(5,340)
Payments on or proceeds from other debt, net	(7,020)	(4,753)	(9,900)
Net cash flows from financing activities	667,223	(57,704)	(98,148)
Effect of exchange rate fluctuations on cash	(1,495)	(2,076)	322
Net increase (decrease) in cash and cash equivalents	(27,104)	78,792	(6,043)
Cash and cash equivalents, beginning of period	148,502	69,710	75,753
Cash and cash equivalents, end of period	121,398	148,502	69,710
Supplemental cash flow information
Income taxes paid, net	27,727	32,205	37,817
Interest paid	$ 58,980	$ 35,300	$ 34,976

Nature of Business and Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Nature of Business and Summary of Significant Accounting Policies

Nature of Business

ACI Worldwide, Inc., a Delaware corporation, and its subsidiaries (collectively referred to as “ACI” or the “Company”) develop, market, install, and support a broad line of software products and services primarily focused on facilitating electronic payments. In addition to its own products, the Company distributes or acts as a sales agent for software developed by third parties. These products and services are used principally by banks, financial intermediaries, merchants, and billers, both in domestic and international markets.

Consolidated Financial Statements

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated. Certain prior period amounts have been reclassified to conform to current year presentation. The Company reclassified $32.3 million from other current assets to settlement assets and $31.6 million from other current liabilities to settlement liabilities in the consolidated balance sheet as of December 31, 2018.

Capital Stock

The Company’s outstanding capital stock consists of a single class of common stock. Each share of common stock is entitled to one vote for each matter subject to a stockholder’s vote and to dividends, if and when declared by the board of directors (the “board”).

Use of Estimates

The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents

The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents. The Company’s cash and cash equivalents includes holdings in checking, savings, money market, and overnight sweep accounts, all of which have daily maturities, as well as time deposits with maturities of three months or less at the date of purchase. The carrying amounts of cash and cash equivalents on the consolidated balance sheets approximate fair value.

Other Current Liabilities

The components of other current liabilities are included in the following table (in thousands):



	December 31,
	2019		2018
Operating lease liabilities	$	15,049	$	—
Vendor financed licenses	9,667		3,551
Royalties payable	6,107		11,318
Accrued interest	9,212		8,407
Other	36,936		38,412
Total other current liabilities	$	76,971	$	61,688

Settlement Assets and Liabilities

Individuals and businesses settle their obligations to the Company’s various Biller clients using credit or debit cards or via automated clearing house (“ACH”) payments. The Company creates a receivable for the amount due from the credit or debit card processor and an offsetting payable to the client. Upon confirmation that the funds have been received, the Company settles the obligation to the client. Due to timing, in some instances, the Company may (1) receive the funds into bank accounts controlled by and in the Company’s name that are not disbursed to its clients by the end of the day, resulting in a settlement deposit on the Company’s books and (2) disburse funds to its clients in advance of receiving funds from the credit or debit card processor, resulting in a net settlement receivable position.

Off Balance Sheet Settlement Accounts

The Company also enters into agreements with certain Biller clients to process payment funds on their behalf. When an ACH or automated teller machine network payment transaction is processed, a transaction is initiated to withdraw funds from the designated source account and deposit them into a settlement account, which is a trust account maintained for the benefit of the Company’s clients. A simultaneous transaction is initiated to transfer funds from the settlement account to the intended destination account. These “back to back” transactions are designed to settle at the same time, usually overnight, such that the Company receives the funds from the source at the same time as it sends the funds to their destination. However, due to the transactions being with various financial institutions there may be timing differences that result in float balances. These funds are maintained in accounts for the benefit of the client which is separate from the Company’s corporate assets. As the Company does not take ownership of the funds, these settlement accounts are not included in the Company’s balance sheet. The Company is entitled to interest earned on the fund balances. The collection of interest on these settlement accounts is considered in the Company’s determination of its fee structure for clients and represents a portion of the payment for services performed by the Company. The amount of settlement funds as of December 31, 2019 and 2018, were $274.0 million and $256.5 million, respectively.

Property and Equipment

Property and equipment are stated at cost. Depreciation of these assets is generally computed using the straight-line method over their estimated useful lives based on asset class. As of December 31, 2019 and 2018, net property and equipment consisted of the following (in thousands):



		December 31,
	Useful Lives	2019			2018
Computer and office equipment	3 - 5 years	$	143,942		$	129,359
Leasehold improvements	Lesser of useful life of improvement or remaining life of lease	33,346			32,096
Furniture and fixtures	7 years	12,980			12,500
Building and improvements	7 - 30 years	14,553			14,381
Land	Non-depreciable	1,785			1,785
Property and equipment, gross		206,606			190,121
Less: accumulated depreciation		(136,226		)	(117,392		)
Property and equipment, net		$	70,380		$	72,729

Software

Software may be for internal use or for resale. Costs related to certain software, which is for resale, are capitalized in accordance with Accounting Standards Codification (“ASC”) 985-20, Costs of Software to be Sold, Leased, or Marketed, when the resulting product reaches technological feasibility. The Company generally determines technological feasibility when it has a detailed program design that takes product function, feature and technical requirements to their most detailed, logical form and is ready for coding. The Company does not typically capitalize costs related to software for resale as technological feasibility generally coincides with general availability of the software. The Company capitalizes the costs of software developed or obtained for internal use in accordance with ASC 350-40, Internal Use Software. The Company expenses all costs incurred during the preliminary project stage of its development and capitalizes the costs incurred during the application development stage. Costs incurred relating to upgrades and enhancements to the software are capitalized if it is determined that these upgrades or enhancements add additional functionality to the software. Costs incurred during the application development stage include purchased software licenses, implementation costs, consulting costs, and payroll-related costs for projects that qualify for capitalization. All other costs, primarily related to maintenance and minor software fixes, are expensed as incurred.

Amortization of software for resale is determined on a product-by-product basis and begins when the product is available for licensing to customers. The annual amortization is computed using the greater of (a) the ratio of current gross revenues to the total of current and future gross revenues expected to be derived from the software or (b) the straight-line method over the remaining estimated useful life of generally five to ten years, including the period being reported on. Due to competitive pressures, it may be possible that the estimates of future gross revenue or remaining estimated useful life of the software will be reduced significantly. As a result, the carrying amount of the software may be reduced accordingly. Amortization of internal-use software is generally computed using the straight-line method over estimated useful lives of one to ten years.

Business Combinations

The Company applies the provisions of ASC 805, Business Combinations, in the accounting for its acquisitions. It requires the Company to recognize separately from goodwill the assets acquired and the liabilities assumed at their acquisition date fair values. Goodwill as of the acquisition date is measured as the excess of consideration transferred and the net of the acquisition date fair values of the assets acquired and the liabilities assumed. While the Company uses its best estimates and assumptions to accurately value assets acquired and liabilities assumed at the acquisition date, its estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, it records adjustments to the assets acquired and liabilities assumed with the corresponding offset to goodwill. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to our consolidated statements of operations.

Critical estimates in valuing certain intangible assets include but are not limited to future expected cash flows from customer relationships, covenants not to compete and acquired developed technologies, brand awareness and market position, as well as assumptions about the period of time the brand will continue to be used in our product portfolio, and discount rates. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently uncertain and unpredictable and, as a result, actual results may differ from estimates.

Other estimates associated with the accounting for acquisitions may change as additional information becomes available regarding the assets acquired and liabilities assumed.

Fair Value

ASC 820, Fair Value Measurements and Disclosures, (“ASC 820”) defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. ASC 820 establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows:


•	Level 1 Inputs – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.

•

Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risks, etc.) or inputs that are derived principally from or corroborated by market data by correlation or other means.


•	Level 3 Inputs – Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities.

The fair value of the Company’s Credit Agreement approximates the carrying value due to the floating interest rate (Level 2 of the fair value hierarchy). The Company measures the fair value of its Senior Notes based on Level 2 inputs, which include quoted market prices and interest rate spreads of similar securities. The fair value of the Company’s 5.750% Senior Notes due 2026 (“2026 Notes”) was $432.0 million and $395.0 million as of December 31, 2019 and 2018, respectively.

The fair values of cash and cash equivalents approximate the carrying values due to the short period of time to maturity (Level 2 of the fair value hierarchy).

Goodwill and Other Intangibles

In accordance with ASC 350, Intangibles – Goodwill and Other, the Company assesses goodwill for impairment annually during the fourth quarter of its fiscal year using October 1 balances or when there is evidence that events or changes in circumstances indicate that the carrying amount of the asset may not be recovered. The Company evaluates goodwill at the reporting unit level using the discounted cash flow valuation model and allocates goodwill to these reporting units using a relative fair value approach. During this assessment, management relies on a number of factors, including operating results, business plans, and anticipated future cash flows. The Company has identified its reportable segments, ACI On Premise and ACI On Demand, as the reporting units.

The key assumptions used in the discounted cash flow valuation model include discount rates, growth rates, cash flow projections and terminal value rates. Discount rates, growth rates, and cash flow projections are the most sensitive and susceptible to change, as they require significant management judgment. Discount rates are determined by using a weighted average cost of capital (“WACC”). The WACC considers market and industry data as well as company-specific risk factors. Operational management,

considering industry and company-specific historical and projected data, develops growth rates and cash flow projections for each reporting unit. Terminal value rate determination follows common methodology of capturing the present value of perpetual cash flow estimates beyond the last projected period, assuming a constant WACC and low, long-term growth rates. If the recoverability test indicates potential impairment, the Company calculates an implied fair value of goodwill for the reporting unit. The implied fair value of goodwill is determined in a manner similar to how goodwill is calculated in a business combination. If the implied fair value of goodwill exceeds the carrying value of goodwill assigned to the reporting unit, there is no impairment. If the carrying value of goodwill assigned to the reporting unit exceeds the implied fair value of the goodwill, an impairment charge is recorded to write down the carrying value. The calculated fair value substantially exceeded the current carrying value for all reporting units for all periods.

Changes in the carrying amount of goodwill attributable to each reporting unit during the year ended December 31, 2019, were as follows (in thousands):



	ACI On Demand		ACI On Premise			Total
Gross Balance, prior to December 31, 2018	$	183,783	$	773,340		$	957,123
Total impairment prior to December 31, 2018	—		(47,432		)	(47,432		)
Balance, December 31, 2018	183,783		725,908			909,691
Goodwill from acquisitions (1)	370,834		—			370,834
Balance, December 31, 2019	$	554,617	$	725,908		$	1,280,525

(1)

Goodwill from acquisitions relates to the goodwill recorded for the acquisition of E Commerce Group Products, Inc. ("ECG"), along with ECG's subsidiary, Speedpay, Inc. (collectively referred to as "Speedpay") and Walletron, Inc. ("Walletron"), as discussed in Note 3, Acquisition. The purchase price allocations for Speedpay and Walletron are preliminary as of December 31, 2019, and are subject to future changes during the maximum one-year measurement period.

Other intangible assets, which include customer relationships and trademarks and trade names, are amortized using the straight-line method over periods ranging from three years to 20 years. The Company reviews its other intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable.

Equity Method Investment

On July 23, 2019, the Company invested $18.3 million for a 30% non-controlling financial interest in a payment technology and services company in India. The Company accounted for this investment using the equity method in accordance with ASC 323, Investments - Equity Method and Joint Ventures. Accordingly, the Company recorded an initial investment of $18.5 million, which includes direct costs of acquiring the investment, and is included in other cash flows from investing activities in the consolidated statement of cash flows and other noncurrent assets in the consolidated balance sheet as of December 31, 2019. The Company records its share of earnings and losses in the investment on a one-quarter lag basis.

Impairment of Long-Lived Assets

The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of a long-lived asset group may not be recoverable. An impairment loss is recorded if the sum of the future cash flows expected to result from the use of the asset (undiscounted and without interest charges) is less than the carrying amount of the asset. The amount of the impairment charge is measured based upon the fair value of the asset group.

Treasury Stock

The Company accounts for shares of its common stock that are repurchased without intent to retire as treasury stock. Such shares are recorded at cost and reflected separately on the consolidated balance sheets as a reduction of stockholders’ equity. The Company issues shares of treasury stock upon exercise of stock options, issuance of restricted share awards and restricted share units, payment of earned performance shares, and for issuances of common stock pursuant to the Company’s employee stock purchase plan. For purposes of determining the cost of the treasury shares re-issued, the Company uses the average cost method.

Stock-Based Compensation Plans

In accordance with ASC 718, Compensation – Stock Compensation, the Company recognizes stock-based compensation expense for awards that are probable of vesting on a straight-line basis over the requisite service period of the award, which is generally the vesting term. Stock-based compensation expense is recorded in operating expenses depending on where the respective individual’s compensation is recorded. The Company generally utilizes the Black–Scholes option–pricing model to determine the

fair value of stock options on the date of grant. To determine the grant date fair value of the supplemental stock options and total shareholder return awards (“TSRs”), a Monte Carlo simulation model was used. The assumptions utilized in the Black-Scholes option-pricing and Monte Carlo simulation models, as well as the description of the plans the stock-based awards are granted under, are described in further detail in Note 11, Stock-Based Compensation Plans.

Translation of Foreign Currencies

The Company’s foreign subsidiaries typically use the local currency of the countries in which they are located as their functional currency. Their assets and liabilities are translated into U.S. dollars at the exchange rates in effect at the balance sheet date. Revenues and expenses are translated at the average exchange rates during the period. Translation gains and losses are reflected in the consolidated financial statements as a component of accumulated other comprehensive income (loss). Transaction gains and losses, including those related to intercompany accounts, that are not considered to be of a long-term investment nature are included in the determination of net income. Transaction gains and losses, including those related to intercompany accounts, that are considered to be of a long-term investment nature are reflected in the consolidated financial statements as a component of accumulated other comprehensive income (loss).

Income Taxes

The provision for income taxes is computed using the asset and liability method, under which deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities. Deferred tax assets are reduced by a valuation allowance when it is more likely than not that some portion or all of the deferred tax assets will not be realized.

The Company periodically assesses its tax exposures and establishes, or adjusts, estimated unrecognized tax benefits for probable assessments by taxing authorities, including the Internal Revenue Service, and various foreign and state authorities. Such unrecognized tax benefits represent the estimated provision for income taxes expected to ultimately be paid.

New Accounting Standards Recently Adopted

In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (codified as “ASC 842”). ASC 842 requires lessees to recognize right-of-use (“ROU”) assets and lease liabilities on the balance sheet for all leases unless, as a policy election, a lessee elects not to apply ASC 842 to short-term leases. In addition, this standard requires both lessees and lessors to disclose certain key information about lease transactions. The Company adopted ASC 842 on January 1, 2019 (the effective date) using the optional transition method to not apply the new lease standard in the comparative periods presented and elected the "practical expedient package", which permits the Company to not reassess prior conclusions about lease identification, lease classification, and initial direct costs. ASC 842 also provides practical expedients for the Company’s ongoing accounting, including the combination of lease and non-lease components into a single lease component which the Company has elected to apply to its leases. As of January 1, 2019, the Company recognized ROU assets and operating lease liabilities of $63.3 million and $68.6 million, respectively. Refer to Note 14, Leases, for further details.

In February 2018, the FASB issued ASU 2018-02, Income Statement-Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This ASU provides an option to reclassify stranded tax effects within accumulated other comprehensive income (“AOCI”) to retained earnings in each period in which the effect of the change in the U.S. federal corporate income tax rate in the 2017 U.S. Tax Cuts and Jobs Act (or portion thereof) is recorded. This ASU requires disclosure of a description of the accounting policy for releasing income tax effects from AOCI; whether election is made to reclassify the stranded income tax effects from the 2017 U.S. Tax Cuts and Jobs Act; and information about the income tax effects that are reclassified. The Company adopted ASU 2018-2 as of January 1, 2019. The adoption of ASU 2018-2 did not have an impact on the consolidated balance sheet, statement of operations, and statement of cash flows.

In July 2019, the FASB issued ASU 2019-07, Codification Updates to SEC Sections - Amendments to SEC Paragraphs Pursuant to SEC Final Rule Releases No. 33-10532, Disclosure Update and Simplification, and Nos. 33-10231 and 33-10442, Investment Company Reporting Modernization, and Miscellaneous Updates, which clarifies or improves the disclosure and presentation requirements of a variety of codification topics by aligning them with the SEC 's regulations. ASU 2019-07 was effective upon issuance and did not have a material impact on the consolidated financial statements.

Recently Issued Accounting Standards Not Yet Effective

In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, and subsequent amendments to the guidance, ASU 2018-19 in November 2018, ASU 2019-04 in April 2019, ASU 2019-05 in May 2019, and ASU's 2019-10 and 2019-11 in November 2019. This ASU provides financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The amendments in ASU 2016-13 replace the incurred loss impairment methodology in current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The Company will be required to use a forward-looking expected credit loss model for accounts receivables. ASU 2016-13 is effective for annual and interim periods beginning after December 15, 2019.

The Company established a project team to assess implementing changes to its processes and controls in conjunction with a comprehensive review of its financial instruments. The Company has determined that the adoption of ASU 2016-13 will not have a material impact on its consolidated balance sheet, statement of operations, and statement of cash flows.

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, as part of its initiative to reduce complexity in accounting standards. The amendments in this update simplify the accounting for income taxes by removing certain exceptions within ASC 740, as well as clarify and simplify other aspects of the accounting for income taxes to promote consistency among reporting entities. ASU 2019-12 is effective for annual and interim periods beginning after December 15, 2020. The Company is currently assessing the impact the adoption of ASU 2019-12 will have on its consolidated balance sheet, statement of operations, and statement of cash flows.

Revenue

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Revenue

Revenue Recognition

In accordance with ASC 606, Revenue From Contracts With Customers, revenue is recognized upon transfer of control of promised products and/or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products and services. Revenue is recognized net of any taxes collected from customers and subsequently remitted to governmental authorities.

Contract Combination. The Company may execute more than one contract or agreement with a single customer. The separate contracts or agreements may be viewed as one combined arrangement or separate agreements for revenue recognition purposes. In order to reach appropriate conclusions regarding whether such agreements should be combined, the Company evaluates whether the agreements were negotiated as a package with a single commercial objective, whether the amount of consideration to be paid in one agreement depends on the price and/or performance of another agreement, or whether the product(s) or services promised in the agreements represent a single performance obligation. The conclusions reached can impact the allocation of the transaction price to each performance obligation and the timing of revenue recognition related to those arrangements.

Software as a Service (“SaaS”) and Platform as a Service (“PaaS”) Arrangements. The Company’s SaaS-based and PaaS-based arrangements, including implementation, support and other services, represent a single promise to provide continuous access (i.e. a stand-ready performance obligation) to its software solutions and their processing capabilities in the form of a service through one of the Company’s data centers. As each day of providing access to the software solution(s) is substantially the same and the customer simultaneously receives and consumes the benefits as access is provided, the Company’s single promise under its SaaS-based and PaaS-based arrangements is comprised of a series of distinct service periods. The Company’s SaaS-based and PaaS-based arrangements may include fixed consideration, variable consideration, or a combination of the two. Fixed consideration is recognized over the term of the arrangement or longer if the fixed consideration relates to a material right. A material right would be a separate performance obligation. The Company estimates the stand-alone selling price for a material right by reference to the services expected to be provided and the corresponding expected consideration. Variable consideration in these arrangements is typically a function of transaction volume or another usage-based measure. Depending upon the structure of a particular arrangement, the Company: (1) allocates the variable amount to each distinct service period within the series and recognizes revenue as each distinct service period is performed (i.e. direct allocation), (2) estimates total variable consideration at contract inception (giving consideration to any constraints that may apply and updating the estimates as new information becomes available) and recognizes the total transaction price over the period to which it relates, or (3) applies the ‘right to invoice’ practical expedient and recognizes revenue based on the amount invoiced to the customer during the period.

License Arrangements. The Company’s software license arrangements provide the customer with the right to use functional intellectual property (as it exists at the point in time at which the license is granted) for the duration of the contract term.

Implementation, support, and other services are typically considered distinct performance obligations when sold with a software license unless these services are determined to significantly modify the software.

Payment terms for the Company’s software license arrangements generally include fixed license and capacity fees that are payable up front or over time. These arrangements may also include incremental usage-based fees that are payable when the customer exceeds its contracted license capacity limits. The Company accounts for capacity overages as a usage-based royalty that is recognized when the usage occurs.

When a software license arrangement contains payment terms that are extended beyond one year, a significant financing component may exist. The significant financing component is calculated as the difference between the stated value and present value of the software license fees and is recognized as interest income over the extended payment period. The total fixed software license fee net of the significant financing component is recognized as revenue at the point in time when the software is transferred to the customer.

For those software license arrangements that include customer-specific acceptance provisions, such provisions are generally presumed to be substantive and the Company does not recognize revenue until the earlier of the receipt of a written customer acceptance, objective demonstration that the delivered product meets the customer-specific acceptance criteria, or the expiration of the acceptance period. The Company recognizes revenues on such arrangements upon the earlier of receipt of written acceptance or the first production use of the software by the customer.

For software license arrangements in which the Company acts as a distributor of another company’s product, and in certain circumstances, modifies or enhances the product, revenues are recorded on a gross basis. These include arrangements in which the Company takes control of the products and is responsible for providing the product or service. For software license arrangements in which the Company acts as a sales agent for another company’s product, revenues are recorded on a net basis. These include arrangements in which the Company does not take control of products and is not responsible for providing the product or service.

For software license arrangements in which the Company utilizes a third-party distributor or sales agent, the Company recognizes revenue upon transfer of control of the software license(s) to the third-party distributor or sales agent.

The Company’s software license arrangements typically provide the customer with a standard 90-day assurance-type warranty. These warranties do not represent an additional performance obligation as services beyond assuring that the software license complies with agreed-upon specifications are not provided.

Software license arrangements typically include an initial post contract customer support (maintenance or “PCS”) term of one year with subsequent renewals for additional years within the initial license period. The Company’s promise to those customers who elect to purchase PCS represents a stand-ready performance obligation that is distinct from the license performance obligation and recognized over the PCS term.

The Company also provides various professional services to customers with software licenses. These include project management, software implementation, and software modification services. Revenues from arrangements to provide professional services are generally distinct from the other promises in the contract(s) and are recognized as the related services are performed. Consideration payable under these arrangements is either fixed fee or on a time-and-materials basis, which represents variable consideration that must be estimated using the most likely amount based on the range of hours expected to be incurred in providing the services.

The Company estimates the stand-alone selling price (“SSP”) for maintenance and professional services based on observable stand-alone sales. The Company applies the residual approach to estimate the SSP for software licenses.

Refer to Note 10, Segment Information, for further details, including disaggregation of revenue based on primary solution category and geographic location.

Significant Judgments

The Company applies judgment in determining the customer’s ability and intention to pay, which is based on a variety of factors including the customer’s historical payment experience or, in the case of a new customer, published credit and financial information.

The Company also applies judgment in determining the term of an arrangement when early termination rights are provided to the customer.

The Company’s software license arrangements with its customers often include multiple promises to transfer licensed software products and services. Determining whether the products and/or services are distinct performance obligations that should be accounted for separately may require significant judgment.

The Company’s SaaS and PaaS arrangements may include variable consideration in the form of usage-based fees. If the arrangement that includes variable consideration in the form of usage-based fees does not meet the allocation exception for variable consideration, the Company estimates the amount of variable consideration at the outset of the arrangement using either the expected value or most likely amount method, depending on the specifics of each arrangement. These estimates are constrained to the extent that it is probable that a significant reversal of incremental revenue will not occur and are updated each reporting period as additional information becomes available.

Judgment is used in determining: (1) whether the financing component in a software license agreement is significant and, if so, (2) the discount rate used in calculating the significant financing component. The Company assesses the significance of the financing component based on the ratio of license fees paid over time to total license fees. If determined to be significant, the financing component is calculated using a rate that discounts the license fees to the cash selling price.

Judgment is also used in assessing whether the extension of payment terms in a software license arrangement results in variable consideration and, if so, the amount to be included in the transaction price. The Company applies the portfolio approach to estimating the amount of variable consideration in these arrangements using the most likely amount method that is based on the Company’s historical collection experience under similar arrangements.

Significant judgment is required to determine the SSP for each performance obligation, the amount allocated to each performance obligation and whether it depicts the amount that the Company expects to receive in exchange for the related product and/or service. As the selling prices of the Company’s software licenses are highly variable, the Company estimates SSP of its software licenses using the residual approach when the software license is sold with other services and observable SSPs exist for the other services. The Company uses a range of amounts to estimate SSP for maintenance and services. These ranges are based on stand-alone sales and vary based on the type of service and geographic region. If the SSP of a performance obligation is not directly observable, the Company will maximize observable inputs to determine its SSP.

Contract Balances

Timing of revenue recognition may differ from the timing of invoicing to customers. The Company records an accrued receivable when revenue is recognized prior to invoicing and the Company’s right to consideration only requires the passage of time, or deferred revenue when revenue is recognized subsequent to invoicing.

Total receivables represent amounts billed and amounts earned that are to be billed in the future (i.e., accrued receivables). Included in accrued receivables are services and SaaS and PaaS revenues earned in the current period but billed in the following period and amounts due under multi-year software license arrangements with extended payment terms for which the Company has an unconditional right to invoice and receive payment subsequent to invoicing.

Total receivables, net is comprised of the following (in thousands):



	December 31,
	2019			2018
Billed receivables	$	213,654		$	239,275
Allowance for doubtful accounts	(5,149		)	(3,912		)
Billed receivables, net	208,505			235,363
Accrued receivables	399,302			336,858
Significant financing component	(35,569		)	(35,029		)
Total accrued receivables, net	363,733			301,829
Less: current accrued receivables	161,714			123,053
Less: current significant financing component	(11,022		)	(10,234		)
Total long-term accrued receivables, net	213,041			189,010
Total receivables, net	$	572,238		$	537,192

No customer accounted for more than 10% of the Company’s consolidated receivables balance as of December 31, 2019 and 2018.

The Company maintains a general allowance for doubtful accounts based on historical experience, along with additional customer-specific allowances. The Company regularly monitors credit risk exposures in consolidated receivables. In estimating the necessary level of our allowance for doubtful accounts, management considers the aging of accounts receivable, the creditworthiness of customers, economic conditions within the customer’s industry, and general economic conditions, among other factors.

The following reflects activity in the Company’s allowance for doubtful accounts receivable for the periods indicated (in thousands):



	Years Ended December 31,
	2019			2018			2017
Balance, beginning of period	$	(3,912	)	$	(4,799	)	$	(3,873	)
Provision increase	(2,561		)	(1,505		)	(2,086		)
Amounts written off, net of recoveries	1,368			2,269			1,305
Foreign currency translation adjustments and other	(44		)	123			(145		)
Balance, end of period	$	(5,149	)	$	(3,912	)	$	(4,799	)

Provision increases recorded in general and administrative expense during the years ended December 31, 2019, 2018, and 2017, reflect increases in the allowance for doubtful accounts based upon collection experience in the geographic regions in which the Company conducts business, net of collection of customer-specific receivables that were previously reserved for as doubtful of collection.

Deferred revenue includes amounts due or received from customers for software licenses, maintenance, services, and/or SaaS and PaaS services in advance of recording the related revenue.

Changes in deferred revenue were as follows (in thousands):



Balance, January 1, 2018	$	145,344
Deferral of revenue	215,188
Recognition of deferred revenue	(200,061		)
Foreign currency translation	(4,336		)
Balance, December 31, 2018	156,135
Deferral of revenue	149,253
Recognition of deferred revenue	(187,069		)
Foreign currency translation	620
Balance, December 31, 2019	$	118,939

Revenue allocated to remaining performance obligations represents contracted revenue that will be recognized in future periods, which is comprised of deferred revenue and amounts that will be invoiced and recognized as revenue in future periods. This does not include:


•	Revenue that will be recognized in future periods from capacity overages that are accounted for as a usage-based royalty.


•	SaaS and PaaS revenue from variable consideration that will be recognized in accordance with the ‘right to invoice’ practical expedient.


•	SaaS and PaaS revenue from variable consideration that will be recognized in accordance with the direct allocation method.

Revenue allocated to remaining performance obligations was $678.0 million as of December 31, 2019, of which the Company expects to recognize approximately 48% over the next 12 months and the remainder thereafter.

During the year ended December 31, 2019, the revenue recognized by the Company from performance obligations satisfied in previous periods was $33.9 million.

Costs to Obtain and Fulfill a Contract

The Company accounts for costs to obtain and fulfill its contracts in accordance with ASC 340-40.

The Company capitalizes certain of its sales commissions that meet the definition of incremental costs of obtaining a contract and for which the amortization period is greater than one year. The costs associated with those sales commissions are capitalized during the period in which the Company becomes obligated to pay the commissions and are amortized over the period in which the related products or services are transferred to the customer. As of December 31, 2019 and 2018, $0.5 million and $1.3 million of these costs are included in other current assets, respectively, and $6.9 million and $11.7 million of these costs are included in other noncurrent assets, respectively, on the consolidated balance sheets. During the years ended December 31, 2019 and 2018, the Company recognized $6.6 million and $8.4 million of sales commission expense, respectively, related to the amortization of these costs, which is included in selling and marketing expense on the consolidated statements of operations.

The Company capitalizes costs incurred to fulfill its contracts that: (1) relate directly to the arrangement, (2) are expected to generate resources that will be used to satisfy the Company’s performance obligation under the arrangement, and (3) are expected to be recovered through revenue generated under the arrangement. Contract fulfillment costs are expensed as the Company transfers the related services to the customer. As of December 31, 2019 and 2018, $0.2 million of these costs are included in other current assets, and $10.2 million and $12.6 million of these costs are included in other noncurrent assets, respectively, on the consolidated balance sheets. The amounts capitalized primarily relate to direct costs that enhance resources under the Company’s SaaS and PaaS arrangements. During the years ended December 31, 2019 and 2018, the Company recognized $5.9 million and $4.7 million of expense, respectively, related to the amortization of these costs, which is included in cost of revenue on the consolidated statements of operations.

Acquisition

12 Months Ended

Dec. 31, 2019

Business Combinations [Abstract]

Acquisition

Speedpay

On May 9, 2019, the Company acquired Speedpay, a subsidiary of The Western Union Company (“Western Union”), for $754.1 million in cash, including working capital adjustments, pursuant to a Stock Purchase Agreement, among the Company, Western Union, and ACI Worldwide Corp., a wholly owned subsidiary of the Company. The Company has included the financial results of Speedpay in the consolidated financial statements from the date of acquisition. The combination of the Company and Speedpay bill pay solutions serves more than 4,000 customers across the U.S., bringing expanded reach in existing and complementary market segments such as consumer finance, insurance, healthcare, higher education, utilities, government, and mortgage. The acquisition of Speedpay increases the scale of the Company’s On Demand platform business and allows the acceleration of platform innovation through increased research and development and investment in ACI's On Demand platform infrastructure.

To fund the acquisition, the Company amended its existing Credit Agreement, dated February 24, 2017, for an additional $500.0 million senior secured term loan (“Delayed Draw Term Loan”), in addition to drawing $250.0 million on the available Revolving Credit Facility. See Note 5, Debt, for terms of the Credit Agreement. The remaining acquisition consideration was funded with cash on hand.

The Company expensed approximately $22.2 million of costs related to the acquisition of Speedpay for the year ended December 31, 2019. These costs, which consist primarily of investment bank, consulting, and legal fees, are included in general and administrative expenses in the accompanying consolidated statements of operations.

Speedpay contributed approximately $227.7 million in revenue and $24.9 million in operating income for the year ended December 31, 2019.

The consideration paid by the Company to complete the acquisition has been allocated preliminarily to the assets acquired and liabilities assumed based upon estimated fair values as of the date of the acquisition. The allocation of purchase price is based upon external valuation and other analyses that have not been completed as of the date of this filing, including, but not limited to, certain tax matters and accrued liabilities. Accordingly, the purchase price allocations are preliminary and are subject to future adjustments during the maximum one-year allocation period.

In connection with the acquisition, the Company recorded the following amounts based upon its preliminary purchase price allocation as of December 31, 2019, which are subject to completion of various analyses (in thousands, except weighted average useful lives):



	Amount		Weighted Average Useful Lives
Current assets:
Cash and cash equivalents	$	135
Receivables, net of allowances	17,658
Settlement assets	239,604
Prepaid expenses	317
Other current assets	19,585
Total current assets acquired	277,299
Noncurrent assets:
Goodwill	366,627
Software	113,600		7 years
Customer relationships	208,500		15 years
Trade names	10,900		5 years
Other noncurrent assets	3,746
Total assets acquired	980,672
Current liabilities:
Accounts payable	6,743
Settlement liabilities	212,892
Employee compensation	1,959
Other current liabilities	3,802
Total current liabilities acquired	225,396
Noncurrent liabilities:
Other noncurrent liabilities	1,219
Total liabilities acquired	226,615
Net assets acquired	$	754,057

During the year ended December 31, 2019, the Company made adjustments to the preliminary purchase price allocation as additional information became available for receivables. These adjustments and any resulting adjustments to the statements of operations were not material to the Company’s previously reported operating results or financial position.

Factors contributing to the purchase price that resulted in the goodwill (which is tax deductible) include the acquisition of management, sales, and technology personnel with the skills to market new and existing products of the Company, enhanced product capabilities, complementary products and customers.

Unaudited Pro Forma Financial Information

The pro forma financial information in the table below presents the combined results of operations for ACI and Speedpay as if the acquisition had occurred January 1, 2018. The pro forma information is shown for illustrative purposes only and is not necessarily indicative of future results of operations of the Company or results of operations of the Company that would have actually occurred had the transaction been in effect for the periods presented. This pro forma information is not intended to represent or be indicative of actual results had the acquisition occurred as of the beginning of each period, and does not reflect potential synergies, integration costs, or other such costs or savings.

Certain pro forma adjustments have been made to net income (loss) for the year ended December 31, 2019 and 2018, to give effect to estimated adjustments that remove the amortization expense on eliminated Speedpay historical identifiable intangible assets, add amortization expense for the value of acquired identified intangible assets (primarily acquired software, customer relationships, and trademarks), and add estimated interest expense on the Company’s additional Delayed Draw Term Loan and Revolving Credit Facility borrowings. Additionally, certain transaction expenses that are a direct result of the acquisition have been excluded from the year ended December 31, 2019.

The following is the unaudited summarized pro forma financial information for the periods presented (in thousands, except per share data):



	Years Ended December 31,
	2019		2018
Pro forma revenue	$	1,382,957	$	1,361,729
Pro forma net income	$	82,003	$	88,428
Pro forma income per share:
Basic	$	0.71	$	0.76
Diluted	$	0.69	$	0.75

Walletron

On May 9, 2019, the Company also completed the acquisition of Walletron, which delivers patented mobile wallet technology. The Company has included the financial results of Walletron in the consolidated financial statements from the date of acquisition, which were not material.

RevChip and TranSend

On October 1, 2019, the Company acquired certain technology assets of RevChip, LLC ("RevChip") and TranSend Integrated Technologies Inc. ("TranSend") for a combined $7.0 million. As substantially all of the value was in the developed technology, the purchase was recognized as an asset acquisition. The Company has included the financial results of RevChip and TranSend in the consolidated financial statements from the date of acquisition, which were not material.

Software and Other Intangible Assets

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Software and Other Intangible Assets

The carrying amount and accumulated amortization of the Company's software assets subject to amortization at each balance sheet date are as follows (in thousands):



	December 31, 2019							December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Balance		Gross Carrying Amount		Accumulated Amortization			Net Balance
Software for resale	$	138,823	$	(122,061	)	$	16,762	$	137,666	$	(110,124	)	$	27,542
Software for internal use	400,065		(182,310		)	217,755		251,804		(142,118		)	109,686
Total software	$	538,888	$	(304,371	)	$	234,517	$	389,470	$	(252,242	)	$	137,228

Software for resale amortization expense totaled $11.0 million for the year ended December 31, 2019, and totaled $12.8 million during both the years ended December 31, 2018 and 2017. These software amortization expense amounts are reflected in cost of revenue in the consolidated statements of operations.

Software for internal use amortization expense recorded during the years ended December 31, 2019, 2018, and 2017, totaled $55.6 million, $41.7 million, and $45.2 million, respectively. These software amortization expense amounts are reflected in depreciation and amortization in the consolidated statements of operations.

The carrying amount and accumulated amortization of the Company’s other intangible assets subject to amortization at each balance sheet date are as follows (in thousands):



	December 31, 2019							December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Balance		Gross Carrying Amount		Accumulated Amortization			Net Balance
Customer relationships	$	507,785	$	(160,775	)	$	347,010	$	297,991	$	(131,187	)	$	166,804
Trademarks and trade names	27,312		(17,353		)	9,959		16,348		(15,025		)	1,323
Total other intangible assets	$	535,097	$	(178,128	)	$	356,969	$	314,339	$	(146,212	)	$	168,127

Other intangible assets amortization expense recorded during the years ended December 31, 2019, 2018, and 2017, totaled $31.9 million, $19.0 million, and $19.4 million, respectively.

Based on capitalized intangible assets as of December 31, 2019, estimated amortization expense amounts in future fiscal years are as follows (in thousands):



Fiscal Year Ending December 31,	Software Amortization		Other Intangible Assets Amortization
2020	$	70,056	$	37,215
2021	55,595		36,730
2022	37,278		36,583
2023	25,406		36,270
2024	19,983		31,781
Thereafter	26,199		178,390
Total	$	234,517	$	356,969

Debt

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Debt

As of December 31, 2019, the Company had $239.0 million, $756.1 million, and $400.0 million outstanding under its Revolving Credit Facility, Term Loan, and Senior Notes, respectively, with up to $261.0 million of unused borrowings under the Revolving Credit Facility portion of the Credit Agreement, as amended.

Credit Agreement

On April 5, 2019, the Company (and its wholly-owned subsidiaries, ACI Worldwide Corp. and Official Payments Corporation ("OPAY")) entered into the Second Amended and Restated Credit Agreement (the “Credit Agreement”), with the lenders, and Bank of America, N.A., as administrative agent for the lenders, to amend and restate the Company's existing agreement, as amended, dated February 24, 2017. The amended Credit Agreement permitted the Company to borrow up to $500.0 million in the form of an additional senior secured term loan; extended the revolver and the existing term loan maturity date from February 24, 2022, to April 5, 2024; increased the maximum consolidated senior secured net leverage ratio covenant from 3.50:1.00 to 3.75:1.00; and increased the maximum consolidated total net leverage ratio covenant from 4.25:1.00 to 5.00:1.00, with subsequent decreases occurring every three quarters thereafter for a specified period of time; among other things. In connection with amending the Credit Agreement, the Company incurred and paid debt issuance costs of $12.8 million during the year ended December 31, 2019.

The Credit Agreement consists of (a) a five-year $500.0 million senior secured revolving credit facility (the “Revolving Credit Facility”), which includes sublimits for (1) the issuance of standby letters of credit and (2) swingline loans, (b) a five-year $279.0 million senior secured term loan facility (the “Initial Term Loan”) and (c) a five-year $500.0 million Delayed Draw Term Loan (together with the Initial Term Loan, the "Term Loans", and together with the Initial Term Loan and the Revolving Credit Facility, the “Credit Facility”). The Credit Agreement also allows the Company to request optional incremental term loans and increases in the revolving commitment.

At the Company’s option, borrowings under the Credit Facility bear interest at an annual rate equal to either (a) a base rate determined by reference to the highest of (1) the annual interest rate publicly announced by the administrative agent as its Prime Rate, (2) the federal funds effective rate plus 1/2 of 1% or (3) a London Interbank Offered Rate ("LIBOR") rate determined by

reference to the costs of funds for U.S. dollar deposits for a one-month interest period, adjusted for certain additional costs plus 1% or (b) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for the interest period relevant to such borrowings, adjusted for certain additional costs plus an applicable margin. Based on the calculation of the applicable consolidated total leverage ratio, the applicable margin for borrowings under the Credit Facility is between 0.25% to 1.25% with respect to base rate borrowings and between 1.25% and 2.25% with respect to LIBOR rate borrowings. Interest is due and payable monthly. The interest rate in effect for the Credit Facility as of December 31, 2019, was 4.04%.

The Company is also required to pay (a) a commitment fee related to the unutilized commitments under the Revolving Credit Facility, payable quarterly in arrears, (b) letter of credit fees on the maximum amount available to be drawn under all outstanding letters of credit in an amount equal to the applicable margin on LIBOR rate borrowings under the Revolving Credit Facility on an annual basis, payable quarterly in arrears, and (c) customary fronting fees for the issuance of letters of credit fees and agency fees.

The Company’s obligations under the Credit Facility and cash management arrangements entered into with lenders under the Credit Facility (or affiliates thereof) and the obligations of the subsidiary guarantors are secured by first-priority security interests in substantially all assets of the Company and any guarantor, including 100% of the capital stock of ACI Worldwide Corp. and each domestic subsidiary of the Company, each domestic subsidiary of any guarantor, and 65% of the voting capital stock of each foreign subsidiary of the Company that is directly owned by the Company or a guarantor, in each case subject to certain exclusions set forth in the credit documentation governing the Credit Facility. The collateral agreement of the Credit Agreement, as amended, released the lien on certain assets of OPAY, our electronic bill presentment and payment affiliate, to allow OPAY to comply with certain eligible securities and unencumbered asset requirements related to money transmitter or transfer license rules and regulations.

The Credit Agreement contains a number of covenants that, among other things and subject to certain exceptions, restrict the Company’s and its subsidiaries' ability to: create, incur, assume or suffer to exist any additional indebtedness; create, incur, assume or suffer to exist any liens; enter into agreements and other arrangements that include negative pledge clauses; pay dividends on capital stock or redeem, repurchase or retire capital stock or subordinated indebtedness; create restrictions on the payment of dividends or other distributions by subsidiaries; make investments, loans, advances and acquisitions; merge, consolidate or enter into any similar combination or sell assets, including equity interests of the subsidiaries; enter into sale and leaseback transactions; directly or indirectly engage in transactions with affiliates; alter in any material respect the character or conduct of the business; enter into amendments of or waivers under subordinated indebtedness, organizational documents and certain other material agreements; and hold certain assets and incur certain liabilities.

Expected Discontinuation of LIBOR

In July 2017, the United Kingdom’s Financial Conduct Authority, which regulates LIBOR, announced it will no longer compel banks to submit rates for the calculation of LIBOR after 2021. The Alternative Reference Rates Committee has proposed the Secured Overnight Financing Rate ("SOFR") as its recommended alternative to LIBOR, and the first publication of SOFR rates was released in April 2018.

The Company is evaluating the potential impact of the transition from LIBOR as an interest rate benchmark to other potential alternative reference rates, including SOFR. The Company's Credit Agreement is currently indexed to LIBOR and the maturity date of the Credit Agreement extends beyond 2021. The Credit Agreement contemplates the discontinuation of LIBOR and provides options for the Company in such an event. The Company will continue to actively assess the related opportunities and risks involved in this transition.

Senior Notes

On August 21, 2018, the Company completed a $400.0 million offering of the 2026 Notes at an issue price of 100% of the principal amount in a private placement for resale to qualified institutional buyers. The 2026 Notes bear interest at an annual rate of 5.750%, payable semi-annually in arrears on February 15 and August 15 of each year, which commenced on February 15, 2019. Interest accrued from August 21, 2018. The 2026 Notes will mature on August 15, 2026. In connection with the issuance of the 2026 Notes, the Company incurred and paid debt issuance costs of $7.3 million for the year ended December 31, 2018.

The Company used the net proceeds of the offering described above to redeem, in full, the Company’s outstanding 6.375% Senior Notes due 2020, including accrued interest, and repaid a portion of the outstanding amount under the Term Credit Facility.

Maturities on debt outstanding at December 31, 2019, are as follows (in thousands):



Fiscal year ending December 31,
2020	$	38,950
2021	38,950
2022	50,431
2023	69,906
2024	796,823
Thereafter	400,000
Total	$	1,395,060

The Credit Facility will mature on April 5, 2024, and the 2026 Notes will mature on August 15, 2026. The Revolving Credit Facility and 2026 Notes do not amortize. The Term Loans do amortize, with principal payable in consecutive quarterly installments.

The Credit Agreement and 2026 Notes contain certain customary affirmative covenants and negative covenants that limit or restrict, subject to certain exceptions, the incurrence of liens, indebtedness of subsidiaries, mergers, advances, investments, acquisitions, transactions with affiliates, change in nature of business, and the sale of the assets. In addition, the Credit Agreement and 2026 Notes contain certain customary mandatory prepayment provisions. The Company is also required to maintain a consolidated leverage ratio at or below a specified amount and an interest coverage ratio at or above a specified amount. As specified in the Credit Agreement and 2026 Notes agreement, if certain events occur and continue, the Company may be required to repay all amounts outstanding under the Credit Facility and 2026 Notes. As of December 31, 2019, and at all times during the period, the Company was in compliance with its financial debt covenants.

Total debt is comprised of the following (in thousands):



	December 31,
	2019			2018
Term loans	$	756,060		$	284,959
Revolving credit facility	239,000			—
5.750% Senior Notes, due August 2026	400,000			400,000
Debt issuance costs	(21,905		)	(13,203		)
Total debt	1,373,155			671,756
Less current portion of term credit facility	38,950			23,747
Less current portion of debt issuance costs	(4,802		)	(2,980		)
Total long-term debt	$	1,339,007		$	650,989

Overdraft Facility

In 2019, the Company and OPAY entered in to a $140.0 million uncommitted overdraft facility with Bank of America, N.A. The overdraft facility bears interest at LIBOR plus 0.875% based on the Company’s average outstanding balance and the frequency in which overdrafts occur. The overdraft facility acts as a secured loan under the terms of the Credit Agreement to provide an additional funding mechanism for timing differences that can occur in the bill payment settlement process. Amounts outstanding on the overdraft facility are included in other current liabilities in the consolidated balance sheet. As of December 31, 2019, there was $1.5 million outstanding on the overdraft facility.

Other

During the year ended December 31, 2019, the Company financed certain multi-year license agreements for internal-use software for $10.4 million with annual payments through April 2022. As of December 31, 2019, $13.8 million is outstanding, under these and other license agreements previously entered into, of which $6.0 million and $7.8 million is included in other current liabilities and other noncurrent liabilities, respectively, in the consolidated balance sheet. As of December 31, 2018, $9.4 million was outstanding, of which $2.5 million and $6.9 million was included in other current liabilities and other noncurrent liabilities, respectively, in the consolidated balance sheet. Upon execution, these arrangements have been treated as a non-cash investing and financing activity for purposes of the consolidated statements of cash flows.

Corporate Restructuring and Other Organizational Changes

12 Months Ended

Dec. 31, 2019

Restructuring and Related Activities [Abstract]

Corporate Restructuring and Other Organizational Changes

Lease Terminations

During the year ended December 31, 2017, the Company ceased use of a portion of its leased facilities in Edison, NJ; Chantilly, VA; Charlotte, NC; Parsippany, NJ; and Waltham, MA. As a result, the Company recorded additional expense of $2.4 million, which was recorded in general and administrative expenses in the consolidated statements of operations for the year ended December 31, 2017.

A summary of the facility closures liability is as follows (in thousands):



Balance, December 31, 2017	$	5,945
Amounts paid during the period	(1,732		)
Foreign currency translation adjustments	(86		)
Balance, December 31, 2018	4,127
Amounts paid during the period	(1,554		)
Foreign currency translation adjustments	29
Balance, December 31, 2019	$	2,602

Of the $2.6 million facility closure liability, $1.3 million is recorded to both other current liabilities and operating lease liabilities in the consolidated balance sheet as of December 31, 2019.

Common Stock and Treasury Stock	12 Months Ended
Common Stock and Treasury Stock	Dec. 31, 2019
Equity [Abstract]
Common Stock and Treasury Stock	Common Stock and Treasury Stock In 2005, the board approved a stock repurchase program authorizing the Company, as market and business conditions warrant, to acquire its common stock and periodically authorize additional funds for the program. In February 2018, the board approved the repurchase of the Company's common stock of up to $200.0 million, in place of the remaining purchase amounts previously authorized. The Company repurchased 1,228,102 shares for $35.6 million under the program for the year ended December 31, 2019. Under the program to date, the Company has repurchased 45,357,495 shares for approximately $583.4 million. As of December 31, 2019, the maximum remaining amount authorized for purchase under the stock repurchase program was $141.0 million. During the year ended September 30, 2006, the Company began to issue shares of treasury stock upon exercise of stock options, payment of earned performance shares, issuance of restricted share awards (“RSAs”), vesting of restricted share units (“RSUs”), and for issuances of common stock pursuant to the Company’s employee stock purchase plan ("ESPP"). Treasury shares issued during the year ended December 31, 2017, included 1,204,559, 560,174, and 158,194 shares issued pursuant to stock option exercises, RSA grants, and the ESPP, respectively. Treasury shares issued during the year ended December 31, 2018, included 1,379,704, 10,000, and 148,520 shares issued pursuant to stock option exercises, RSUs vested, and the ESPP, respectively. Treasury shares issued during the year ended December 31, 2019, included 854,524, 259,634, and 126,983 shares issued pursuant to stock option exercises, RSUs vested, and the ESPP, respectively.

Earnings Per Share

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share

Basic earnings per share is computed in accordance with ASC 260, Earnings per Share, based on weighted average outstanding common shares. Diluted earnings per share is computed based on basic weighted average outstanding common shares adjusted for the dilutive effect of stock options, RSUs, and certain contingently issuable shares for which performance targets have been achieved.

The following table reconciles the weighted average share amounts used to compute both basic and diluted earnings per share (in thousands):



	Years Ended December 31,
	2019	2018	2017
Weighted average shares outstanding:
Basic weighted average shares outstanding	116,175	116,057	118,059
Add: Dilutive effect of stock options, RSUs, and contingently issuable shares	2,396	1,575	1,385
Diluted weighted average shares outstanding	118,571	117,632	119,444

The diluted earnings per share computation excludes 1.8 million, 2.2 million, and 3.9 million options to purchase shares, RSUs, and contingently issuable shares during the years ended December 31, 2019, 2018, and 2017, respectively, as their effect would be anti-dilutive.

Common stock outstanding as of December 31, 2019 and 2018, was 115,986,352 and 116,123,361, respectively.

Other, Net	12 Months Ended
Other, Net	Dec. 31, 2019
Other Income and Expenses [Abstract]
Other, Net	Other, Net Other, net is comprised of foreign currency transaction gains of $0.5 million for the year ended December 31, 2019, and foreign currency transaction losses of $3.7 million and $2.6 million for the years ended December 31, 2018 and 2017, respectively.

Segment Information

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Segment Information

The Company reports financial performance based on its segments, ACI On Premise and ACI On Demand, and analyzes Segment Adjusted EBITDA as a measure of segment profitability.

The Company’s interim Chief Executive Officer is also the chief operating decision maker ("CODM"). The CODM, together with other senior management personnel, focus their review on consolidated financial information and the allocation of resources based on operating results, including revenues and Segment Adjusted EBITDA, for each segment, separate from Corporate operations.

ACI On Premise serves customers who manage their software on site or through a third-party cloud service provider. These on-premise customers use the Company’s software to develop sophisticated solutions, which are often part of a larger system located and managed at the customer specified site. These customers require a level of control and flexibility that ACI On Premise solutions can offer, and they have the resources and expertise to take a lead role in managing these solutions.

ACI On Demand serves the needs of banks, merchants, and billers who use payments to facilitate their core business. These on-demand solutions are maintained and delivered through the cloud via our global data centers and are available in either a single-tenant environment for SaaS offerings, or in a multi-tenant environment for PaaS offerings.

Revenue is attributed to the reportable segments based upon the product sold and mechanism for delivery to the customer. Expenses are attributed to the reportable segments in one of three methods, (1) direct costs of the segment, (2) labor costs that can be attributed based upon time tracking for individual products, or (3) costs that are allocated. Allocated costs are generally marketing and sales related activities as well as information technology and facilities related expense for which multiple segments benefit. The Company also allocates certain depreciation costs to the segments.

Segment Adjusted EBITDA is the measure reported to the CODM for purposes of making decisions on allocating resources and assessing the performance of the Company’s segments and, therefore, Segment Adjusted EBITDA is presented in conformity with ASC 280, Segment Reporting. Segment Adjusted EBITDA is defined as earnings (loss) from operations before interest, income tax expense (benefit), depreciation and amortization (“EBITDA”) adjusted to exclude stock-based compensation, and net other income (expense).

Corporate and unallocated expenses consist of the corporate overhead costs that are not allocated to reportable segments. These overhead costs relate to human resources, finance, legal, accounting, merger and acquisition activity, and other costs that are not considered when management evaluates segment performance. For the year ended December 31, 2017, corporate and unallocated expenses included $46.7 million of general and administrative expense for the legal judgment discussed in Note 15, Commitments and Contingencies.

The following is selected financial data for the Company’s reportable segments for the periods indicated (in thousands):



	Years Ended December 31,
	2019			2018			2017
Revenues
ACI On Premise	$	579,334		$	576,755		$	598,590
ACI On Demand	678,960			433,025			425,601
Total revenue	$	1,258,294		$	1,009,780		$	1,024,191
Segment Adjusted EBITDA
ACI On Premise	$	321,305		$	323,902		$	347,094
ACI On Demand	66,501			12,015			(1,832		)
Depreciation and amortization	(122,569		)	(97,350		)	(102,224		)
Stock-based compensation expense	(36,763		)	(20,360		)	(13,683		)
Corporate and unallocated expenses	(104,718		)	(92,296		)	(144,715		)
Interest, net	(52,066		)	(30,388		)	(38,449		)
Other, net	520			(3,724		)	(2,619		)
Income before income taxes	$	72,210		$	91,799		$	43,572
Depreciation and amortization
ACI On Premise	$	11,992		$	11,634		$	13,094
ACI On Demand	34,395			31,541			34,171
Corporate	76,182			54,175			54,959
Total depreciation and amortization	$	122,569		$	97,350		$	102,224
Stock-based compensation expense
ACI On Premise	$	7,651		$	4,348		$	2,234
ACI On Demand	7,995			4,338			2,230
Corporate	21,117			11,674			9,219
Total stock-based compensation expense	$	36,763		$	20,360		$	13,683

Assets are not allocated to segments, and the Company’s CODM does not evaluate operating segments using discrete asset information.

The following is revenue by primary geographic market and primary solution category for the Company’s reportable segments for the periods indicated (in thousands):



	Year Ended December 31, 2019						Year Ended December 31, 2018
	ACI On Premise		ACI On Demand		Total		ACI On Premise		ACI On Demand		Total
Primary Geographic Markets
Americas - United States	$	172,660	$	609,160	$	781,820	$	131,382	$	369,097	$	500,479
Americas - Other	68,020		9,350		77,370		61,969		9,577		71,546
EMEA	251,035		50,629		301,664		296,157		48,889		345,046
Asia Pacific	87,619		9,821		97,440		87,247		5,462		92,709
Total	$	579,334	$	678,960	$	1,258,294	$	576,755	$	433,025	$	1,009,780
Primary Solution Categories
Bill Payments	$	—	$	510,300	$	510,300	$	—	$	275,526	$	275,526
Digital Channels	32,980		44,731		77,711		35,231		40,342		75,573
Merchant Payments	25,693		77,204		102,897		30,447		64,956		95,403
Payments Intelligence	33,790		36,019		69,809		42,353		41,330		83,683
Real-Time Payments	97,153		3,456		100,609		92,068		2,193		94,261
Retail Payments	389,718		7,250		396,968		376,656		8,678		385,334
Total	$	579,334	$	678,960	$	1,258,294	$	576,755	$	433,025	$	1,009,780



	Year Ended December 31, 2017
	ACI On Premise		ACI On Demand		Total
Primary Geographic Markets
Americas - United States	$	175,682	$	365,553	$	541,235
Americas - Other	72,802		9,429		82,231
EMEA	270,388		47,872		318,260
Asia Pacific	79,718		2,747		82,465
Total	$	598,590	$	425,601	$	1,024,191
Primary Solution Categories
Bill Payments	$	—	$	271,421	$	271,421
Digital Channels	47,973		46,063		94,036
Merchant Payments	27,155		56,018		83,173
Payments Intelligence	32,478		41,628		74,106
Real-Time Payments	70,087		2,785		72,872
Retail Payments	420,897		7,686		428,583
Total	$	598,590	$	425,601	$	1,024,191

The following is the Company’s long-lived assets by geographic location for the periods indicated (in thousands):



	December 31,
	2019		2018
Long-lived Assets
United States	$	1,526,046	$	811,435
Other	759,501		717,495
Total	$	2,285,547	$	1,528,930

No single customer accounted for more than 10% of the Company’s consolidated revenues during the years ended December 31, 2019, 2018, and 2017. No other country outside the United States accounted for more than 10% of the Company’s consolidated revenues during the years ended December 31, 2019, 2018, and 2017.

Stock-Based Compensation Plans

12 Months Ended

Dec. 31, 2019

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation Plans

Employee Stock Purchase Plan

On April 6, 2017, the board approved the 2017 Employee Stock Purchase Plan (“2017 ESPP”), which was approved by shareholders at the 2017 Annual Shareholder meeting. The 2017 ESPP provides employees with an opportunity to purchase shares of the Company’s common stock. The 1999 Employee Stock Purchase Plan terminated upon the August 1, 2017, effective date of the 2017 ESPP. Under the Company’s 2017 ESPP, a total of 3,000,000 shares of the Company’s common stock have been reserved for issuance to eligible employees. Participating employees are permitted to designate up to the lesser of $25,000 or 10% of their annual base compensation for the purchase of common stock under the ESPP. Purchases under the ESPP are made one calendar month after the end of each fiscal quarter. The price for shares of common stock purchased under the ESPP is 85% of the stock’s fair market value on the last business day of the three-month participation period.

Additionally, the discount offered pursuant to the Company’s ESPP discussed above is 15%, which exceeds the 5% non-compensatory guideline in ASC 718 and exceeds the Company’s estimated cost of raising capital. Consequently, the entire 15% discount to employees is deemed to be compensatory for purposes of calculating expense using a fair value method. Compensation expense related to the ESPP for the year ended December 31, 2019, was approximately $0.6 million and compensation expense related to the ESPP for both the years ended December 31, 2018 and 2017, was approximately $0.5 million.

Stock Incentive Plans – Active Plans

2016 Equity and Performance Incentive Plan

On March 23, 2016, the board approved the 2016 Equity and Performance Incentive Plan (the “2016 Incentive Plan”). The 2016 Incentive Plan is intended to meet the Company’s objective of balancing stockholder concerns about dilution with the need to provide appropriate incentives to achieve Company performance objectives. The 2016 Incentive Plan was adopted by the stockholders on June 14, 2016. Following the adoption of the 2016 Incentive Plan, the 2005 Equity and Performance Incentive Plan, as amended (the “2005 Incentive Plan”) was terminated. Termination of the 2005 Incentive Plan did not affect any equity awards outstanding under the 2005 Incentive Plan.

The 2016 Incentive Plan provides for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted share and restricted share units, performance shares and performance units, and other awards (“awards”). Subject to adjustment in certain circumstances, the maximum number of shares of common stock that may be issued or transferred in connection with awards granted under the 2016 Incentive Plan will be the sum of (i) 8,000,000 shares of common stock and (ii) any shares of common stock that are represented by options previously granted under the 2005 Incentive Plan which are forfeited, expire, or are canceled without delivery of common stock or which result in the forfeiture or relinquishment of common stock back to the Company. To the extent awards granted under the 2016 Incentive Plan terminate, expire, are canceled without being exercised, are forfeited or lapse for any reason, the shares of common stock subject to such award will again become available for grants under the 2016 Incentive Plan.

The 2016 Incentive Plan expressly prohibits re-pricing stock options and appreciation rights. The 2016 Incentive Plan also, subject to certain limited exceptions, expressly requires a one-year vesting period for all stock options and appreciation rights.

No eligible person selected by the board to receive awards (“participant”) will receive stock options, stock appreciation rights, restricted share awards, restricted share units, and other awards under the 2016 Incentive Plan, during any calendar year, for more than 3,000,000 shares of common stock. In addition, no participant may receive performance shares or performance units having an aggregate value on the date of grant in excess of $9,000,000 during any calendar year. Each of the limits described above may be adjusted equitably to accommodate a change in the capital structure of the Company.

2005 Equity and Performance Incentive Plan

The Company had a 2005 Incentive Plan, as amended, under which shares of the Company’s common stock were reserved for issuance to eligible employees or non-employee directors of the Company. The 2005 Incentive Plan provided for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock awards, performance awards, and other awards. The maximum number of shares of the Company’s common stock that was issued or transferred in connection with awards granted under the 2005 Incentive Plan was the sum of (i) 23,250,000 shares and (ii) any shares represented by outstanding

options that had been granted under designated terminated stock option plans that were subsequently forfeited, expired, or are canceled without delivery of the Company’s common stock.

Stock Options

Stock options granted pursuant to the 2016 Incentive Plan are granted at an exercise price not less than the market value per share of the Company’s common stock on the date of grant. Under the 2016 Incentive Plan, the term of the outstanding options may not exceed ten years nor be less than one year. Vesting of options is determined by the compensation committee of the board and the administrator of the 2016 Incentive Plan and can vary based upon the individual award agreements. In addition, outstanding options do not have dividend equivalent rights associated with them under the 2016 Incentive Plan.

A summary of stock option activity is as follows:



	Number of Shares		Weighted Average Exercise Price ($)		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value of In-the-Money Options ($)
Outstanding, December 31, 2018	4,864,836		$	17.76
Exercised	(854,524	)	15.78
Forfeited	(3,496	)	17.89
Outstanding, December 31, 2019	4,006,816		$	18.18	3.71	$	78,949,941
Exercisable, December 31, 2019	3,462,664		$	17.86	3.70	$	69,349,255

The weighted average grant date fair value of stock options granted during the years ended December 31, 2018 and 2017, was $7.03 and $6.24, respectively. The Company did not grant stock options during the year ended December 31, 2019. The total intrinsic value of stock options exercised during the years ended December 31, 2019, 2018, and 2017, was $16.0 million, $15.8 million, and $13.4 million, respectively.

The fair value of options granted in the respective fiscal years are estimated on the date of grant using the Black-Scholes option-pricing model, acceptable under ASC 718, with the following weighted average assumptions:



	Years Ended December 31,
	2018		2017
Expected life (years)	5.6		5.6
Risk-free interest rate	2.7	%	1.9	%
Expected volatility	26.4	%	29.4	%
Expected dividend yield	—		—

Expected volatilities are based on the Company’s historical common stock volatility, derived from historical stock price data for periods commensurate with the options’ expected life. The expected life of options granted represents the period of time options are expected to be outstanding, based primarily on historical employee option exercise behavior. The risk-free interest rate is based on the implied yield currently available on U.S. Treasury zero coupon bonds issued with a term equal to the expected life at the date of grant of the options. The expected dividend yield is zero, as the Company has historically paid no dividends and does not anticipate dividends to be paid in the future.

Long-term Incentive Program Performance Share Awards

During the year ended December 31, 2017, pursuant to the Company’s 2016 Incentive Plan, the Company granted long-term incentive program performance share awards (“LTIP performance shares”). These LTIP performance shares are earned, if at all, based upon the achievement, over a specified period that must not be less than one year and is typically a three-year performance period, of performance goals related to (i) the compound annual growth over the performance period in the sales for the Company as determined by the Company, and (ii) the cumulative operating income or EBITDA over the performance period as determined by the Company. Up to 200% of the LTIP performance shares may be earned upon achievement of performance goals equal to or exceeding the maximum target levels for the performance goals over the performance period. On a quarterly basis, management

must evaluate the probability that the threshold performance goals will be achieved, if at all, and the anticipated level of attainment to determine the amount of compensation expense to record in the consolidated financial statements.

A summary of the nonvested LTIP performance shares is as follows:



	Number of Shares at Expected Attainment		Weighted Average Grant Date Fair Value
Nonvested at December 31, 2018	540,697		$	19.83
Forfeited	(56,567	)	18.80
Change in expected attainment	185,339		20.09
Nonvested at December 31, 2019	669,469		$	20.12

During the year ended December 31, 2019, the Company revised the expected attainment rates for outstanding LTIP performance shares due to changes in forecasted sales and operating income, resulting in additional stock-based compensation expense of approximately $3.7 million.

Restricted Share Awards

During the years ended December 31, 2017, pursuant to the Company’s 2016 Incentive Plan and 2005 Incentive Plan, the Company granted RSAs. The awards have requisite service periods of three years and vest in increments of 33% on the anniversary of the grant dates. Under each arrangement, shares are issued without direct cost to the employee. RSAs granted to our board vest one year from grant or as of the next annual shareholders meeting, whichever is earlier. The Company estimates the fair value of the RSAs based upon the market price of the Company’s stock at the date of grant. The RSA grants provide for the payment of dividends on the Company’s common stock, if any, to the participant during the requisite service period, and the participant has voting rights for each share of common stock. The Company recognizes compensation expense for RSAs on a straight-line basis over the requisite service period.

A summary of nonvested RSAs is as follows:



	Number of Shares		Weighted Average Grant Date Fair Value
Nonvested at December 31, 2018	213,337		$	20.21
Vested	(106,610	)	20.17
Forfeited	(13,885	)	20.64
Nonvested at December 31, 2019	92,842		$	20.13

During the year ended December 31, 2019, a total of 106,610 RSAs vested. The Company withheld 32,371 of those shares to pay the employees’ portion of the minimum payroll withholding taxes.

Total Shareholder Return Awards

During the years ended December 31, 2019, 2018, and 2017, pursuant to the 2016 Incentive Plan, the Company granted total shareholder return awards (“TSRs”). TSRs are performance shares that are earned, if at all, based upon the Company’s total shareholder return as compared to a group of peer companies over a three-year performance period. The award payout can range from 0% to 200%. To determine the grant date fair value of the TSRs, a Monte Carlo simulation model is used. The Company recognizes compensation expense for the TSRs over a three-year performance period based on the grant date fair value.

The grant date fair value of the TSRs was estimated using the following weighted-average assumptions:



	Years Ended December 31,
	2019		2018		2017
Expected life (years)	2.8		2.9		2.9
Interest rate	2.5	%	2.4	%	1.5	%
Volatility	29.3	%	28.0	%	26.5	%
Expected dividend yield	—		—		—

A summary of nonvested TSRs is as follows:



	Number of Shares at Expected Attainment		Weighted Average Grant Date Fair Value
Nonvested as of December 31, 2018	718,931		$	29.25
Granted	436,674		47.90
Forfeited	(93,314	)	35.37
Nonvested as of December 31, 2019	1,062,291		$	35.77

Restricted Share Units

During the year ended December 31, 2019, pursuant to the 2016 Incentive Plan, the Company granted restricted share unit awards (“RSUs”). RSUs generally have requisite service periods of three years and vest in increments of 33% on the anniversary of the grant dates. RSUs granted to our board vest one year from grant or as of the next annual shareholders meeting, whichever is earlier. Under each arrangement, RSUs are issued without direct cost to the employee on the vesting date. The Company estimates the fair value of the RSUs based upon the market price of the Company’s stock at the date of grant. The Company recognizes compensation expense for RSUs on a straight-line basis over the requisite service period.

A summary of nonvested RSUs is as follows:



	Number of Shares		Weighted Average Grant Date Fair Value
Nonvested as of December 31, 2018	651,045		$	23.82
Granted	742,579		33.28
Vested	(259,634	)	24.16
Forfeited	(124,586	)	29.79
Nonvested as of December 31, 2019	1,009,404		$	29.96

During the year ended December 31, 2019, a total of 259,634 RSUs vested. The Company withheld 57,802 of those shares to pay the employees’ portion of the minimum payroll withholding taxes.

As of December 31, 2019, there was unrecognized compensation expense of $20.5 million related to RSUs, $15.0 million related to TSRs, $0.5 million related to LTIP performance shares, $0.3 million related to nonvested RSAs, and $0.2 million related to nonvested stock options, which the Company expects to recognize over weighted average periods of 1.9 years, 1.9 years, 0.1 years, 0.2 years, and 0.3 years, respectively.

The Company recorded stock-based compensation expense recognized under ASC 718 during the years ended December 31, 2019, 2018, and 2017, of $36.8 million, $20.4 million, and $13.7 million, respectively, with corresponding tax benefits of $5.9 million, $3.9 million, and $1.7 million, respectively. The Company recognizes compensation expense for stock option awards that vest with only service conditions on a straight-line basis over the requisite service period. The Company recognizes compensation expense for stock option awards that vest with service and market-based conditions on a straight-line basis over the longer of the requisite service period or the estimated period to meet the defined market-based condition.

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2019
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans ACI 401(k) Plan The ACI 401(k) Plan is a defined contribution plan covering all domestic employees of the Company. Participants may contribute up to 75% of their annual eligible compensation up to a maximum of $19,000 (for employees who are under the age of 50 on December 31, 2019) or a maximum of $25,000 (for employees aged 50 or older on December 31, 2019). After one year of service, the Company matches 100% of the first 4% of eligible participant contributions and 50% of the next 4% of eligible participant contributions, not to exceed $5,000 per employee annually. Company contributions charged to expense were $6.4 million during both the years ended December 31, 2019 and 2018, and $5.3 million during the year ended December 31, 2017. ACI Worldwide EMEA Group Personal Pension Scheme The ACI Worldwide EMEA Group Personal Pension Scheme is a defined contribution plan covering substantially all ACI Worldwide (EMEA) Limited (“ACI-EMEA”) employees. For those ACI-EMEA employees who elect to participate in the plan, the Company contributes a minimum of 8.5% of eligible compensation to the plan for employees employed at December 1, 2000 (up to a maximum of 15.5% for employees aged over 55 years on December 1, 2000) or from 6% to 10% of eligible compensation for employees employed subsequent to December 1, 2000. ACI-EMEA contributions charged to expense were $1.5 million during the year ended December 31, 2019, and $1.6 million during both the years ended December 31, 2018 and 2017.

Income Taxes

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Income Taxes

On December 22, 2017, the Tax Cuts and Jobs Act (“Tax Act”) was signed into U.S. Law. As of December 31, 2018, the Company had completed its accounting for the tax effects related to the enactment of the Tax Act.

The Tax Act reduced the U.S. federal corporate income tax rate from 35% to 21%, effective January 1, 2018. During the year ended December 31, 2017, the Company remeasured certain deferred tax assets and liabilities and recorded a $15.0 million provisional tax charge. During the year ended December 31, 2018, the Company reduced the initial provisional tax charge by recording a $4.9 million benefit related to accelerated tax deductions claimed on the 2018 U.S. Federal Income Tax Return.

The Tax Act required U.S. companies to pay a one-time transition tax on certain unremitted foreign earnings. During the year ended December 31, 2017, the Company recorded a $20.9 million provisional tax charge based on post-1986 earnings and profits of foreign subsidiaries that were previously deferred from U.S. income taxes. Upon further analysis, the Company reduced the initial provisional tax charge by recording an $8.1 million benefit during the year ended December 31, 2018.

During the year ended December 31, 2018, the Company recorded a $15.5 million valuation allowance on its deferred tax asset related to U.S. foreign tax credits based upon business conditions and tax laws in effect at that time.

During the year ended December 31, 2019, following the acquisition of Speedpay, the Company determined it will more likely than not be able to utilize foreign tax credits in future years due to additional income generated by Speedpay; therefore, the Company released the $15.5 million valuation allowance that had been established on this deferred tax asset.

The Tax Act subjects a U.S. shareholder to tax on global intangible low-taxed income ("GILTI") earned by certain foreign subsidiaries. The Company has elected to account for GILTI in the year the tax is incurred.

Prior to 2018, the Company considered all earnings in foreign subsidiaries to be indefinitely reinvested, and accordingly, recorded no deferred income taxes related to unremitted earnings. As of December 31, 2019 and 2018, the Company considered only the earnings in its Indian subsidiaries to be indefinitely reinvested. The earnings of all other foreign subsidiaries are no longer considered indefinitely reinvested. The Company is also permanently reinvested for outside book/tax basis differences related to foreign subsidiaries.

For financial reporting purposes, income before income taxes includes the following components (in thousands):



	Years Ended December 31,
	2019			2018		2017
United States	$	(16,317	)	$	16,312	$	(42,863	)
Foreign	88,527			75,487		86,435
Total	$	72,210		$	91,799	$	43,572

The expense (benefit) for income taxes consists of the following (in thousands):



	Years Ended December 31,
	2019			2018			2017
Federal
Current	$	3,738		$	6,545		$	2,586
Deferred	(25,150		)	(6,587		)	19,212
Total	(21,412		)	(42		)	21,798
State
Current	590			4,441			(1,857		)
Deferred	342			(2,649		)	(1,324		)
Total	932			1,792			(3,181		)
Foreign
Current	22,960			17,626			16,048
Deferred	2,668			3,502			3,772
Total	25,628			21,128			19,820
Total	$	5,148		$	22,878		$	38,437

Differences between the income tax expense computed at the statutory federal income tax rate and per the consolidated statements of operations are summarized as follows (in thousands):



	Years Ended December 31,
	2019			2018			2017
Tax expense at federal rate of 21% (35% pre-2018)	$	15,164		$	19,278		$	15,250
State income taxes, net of federal benefit	1,227			5,246			(2,238		)
Change in valuation allowance	(12,760		)	12,657			(1,884		)
Foreign tax rate differential	(2,535		)	(4,796		)	(15,622		)
Unrecognized tax benefit increase	898			1,262			3,007
Tax effect of foreign operations	6,698			8,546			5,532
Tax benefit of research & development	(2,506		)	(2,557		)	(1,904		)
Transition tax	—			(8,112		)	20,867
Revaluation of deferred tax balances	—			(4,937		)	14,953
Performance-based compensation	(560		)	(4,541		)	2,081
Domestic production activities	—			—			(3,793		)
Other	(478		)	832			2,188
Income tax provision	$	5,148		$	22,878		$	38,437

The countries having the greatest impact on the tax rate adjustment line shown in the above table as “Foreign tax rate differential” are Ireland, Luxembourg, and the United Kingdom for the year ended December 31, 2019; Ireland and Luxembourg for the year ended December 31, 2018; and Ireland, Luxembourg, and the United Kingdom for the year ended December 31, 2017.

The deferred tax assets and liabilities result from differences in the timing of the recognition of certain income and expense items for tax and financial accounting purposes. The sources of these differences at each balance sheet date are as follows (in thousands):



	December 31,
	2019			2018
Deferred income tax assets:
Net operating loss carryforwards	$	23,030		$	25,745
Tax credits	52,902			43,838
Compensation	18,791			15,934
Deferred revenue	25,599			27,587
Research and development expense deferral	—			12,631
Other	4,065			5,393
Gross deferred income tax assets	124,387			131,128
Less: valuation allowance	(7,653		)	(20,415		)
Net deferred income tax assets	$	116,734		$	110,713
Deferred income tax liabilities:
Depreciation and amortization	$	(52,978	)	$	(60,872	)
Deferred revenue	(44,198		)	(54,508		)
Total deferred income tax liabilities	(97,176		)	(115,380		)
Net deferred income taxes	$	19,558		$	(4,667	)
Deferred income taxes / liabilities included in the balance sheet are:
Deferred income tax asset – noncurrent	$	51,611		$	27,048
Deferred income tax liability – noncurrent	(32,053		)	(31,715		)
Net deferred income taxes	$	19,558		$	(4,667	)

In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. The Company considers projected future taxable income, carryback opportunities, and tax planning strategies in making this assessment. Based upon the level of historical taxable income and projections for future taxable income over the periods which the deferred tax assets are deductible, the Company believes it is more likely than not that it will realize the benefits of these deductible differences, net of the valuation allowances recorded. During the year ended December 31, 2019, the Company decreased its valuation allowance by $12.8 million which relates to a reduction in the valuation allowance on U.S. foreign tax credits offset by an increase in valuation allowance on foreign net operating losses.

At December 31, 2019, the Company had domestic federal tax net operating losses (“NOLs”) of $65.9 million, which will begin to expire in 2020. The Company had deferred tax assets equal to $1.4 million related to domestic state tax NOLs which will begin to expire in 2020. The Company does not have any valuation allowance against the federal tax NOLs but has provided a $1.2 million valuation allowance against the deferred tax asset associated with the state NOLs. The Company had foreign tax NOLs of $30.4 million, of which $28.1 million may be utilized over an indefinite life, with the remainder expiring over the next 17 years. The Company has provided a $0.7 million valuation allowance against the deferred tax asset associated with the foreign NOLs.

The Company had U.S. foreign tax credit carryforwards at December 31, 2019, of $40.7 million, for which an $1.2 million valuation allowance has been provided. The U.S. foreign tax credits will begin to expire in 2022. The Company had foreign tax credit carryforwards in other foreign jurisdictions at December 31, 2019, of $1.9 million, of which $1.3 million may be utilized over an indefinite life, with the remainder expiring over the next seven years. The Company has provided a $1.2 million valuation allowance against the tax benefit associated with these foreign credits. The Company also has domestic federal and state general business tax credit carryforwards at December 31, 2019, of $15.7 million and $0.8 million, respectively, which will begin to expire in 2020 and 2022, respectively.

The unrecognized tax benefit at December 31, 2019 and 2018, was $29.0 million and $28.4 million, respectively, of which $22.4 million and $22.6 million, respectively, are included in other noncurrent liabilities in the consolidated balance sheets. Of the total

unrecognized tax benefit amounts at December 31, 2019 and 2018, $28.2 million and $27.5 million, respectively, represent the net unrecognized tax benefits that, if recognized, would favorably impact the effective income tax rate in the respective years.

A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31 is as follows (in thousands):



	2019			2018			2017
Balance of unrecognized tax benefits at beginning of year	$	28,406		$	27,237		$	24,278
Increases for tax positions of prior years	2,784			315			2,478
Decreases for tax positions of prior years	(96		)	(61		)	(114		)
Increases for tax positions established for the current period	2,542			1,185			1,677
Decreases for settlements with taxing authorities	(220		)	—			(154		)
Reductions resulting from lapse of applicable statute of limitation	(4,462		)	(115		)	(1,155		)
Adjustment resulting from foreign currency translation	46			(155		)	227
Balance of unrecognized tax benefits at end of year	$	29,000		$	28,406		$	27,237

The Company files income tax returns in the U.S. federal jurisdiction, various state and local jurisdictions, and many foreign jurisdictions. The United States, Germany, India, Ireland, Luxembourg, Mexico, the United Kingdom, and Uruguay are the main taxing jurisdictions in which the Company operates. The years open for audit vary depending on the tax jurisdiction. In the United States, the Company’s tax returns for years following 2015 are open for audit. In the foreign jurisdictions, the tax returns open for audit generally vary by jurisdiction between 2003 and 2018.

The Company’s Indian income tax returns covering fiscal years 2003, 2005, 2010 through 2013, and 2016 are under audit by the Indian tax authority. Other foreign subsidiaries could face challenges from various foreign tax authorities. It is not certain that the local authorities will accept the Company’s tax positions. The Company believes its tax positions comply with applicable tax law and intends to vigorously defend its positions. However, differing positions on certain issues could be upheld by tax authorities, which could adversely affect the Company’s financial condition and results of operations.

The Company believes it is reasonably possible that the total amount of unrecognized tax benefits will decrease within the next 12 months by approximately $11.7 million due to the settlement of various audits and the expiration of statutes of limitations. The Company accrues interest related to uncertain tax positions in interest expense or interest income and recognizes penalties related to uncertain tax positions in other income or other expense. As of December 31, 2019 and 2018, $1.2 million is accrued for the payment of interest and penalties related to income tax liabilities. The aggregate amount of interest and penalties expense (benefit) recorded in the statements of operations for the years ended December 31, 2019, 2018, and 2017, is $0.2 million, $0.0 million, and $(0.8) million, respectively.

Leases

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Leases

The Company has operating leases for corporate offices and data centers. Excluding office leases, leases with an initial term of 12-months or less that do not include an option to purchase the underlying asset are not recorded on the consolidated balance sheet and are expensed on a straight-line basis over the lease term.

The Company’s leases typically include certain renewal options to extend the leases for up to 25 years, some of which include options to terminate the leases within one year. The exercise of lease renewal options is at the Company’s sole discretion. The Company combines lease and non-lease components of its leases and currently has no leases with options to purchase the leased property. Payments of maintenance and property tax costs paid by the Company are accounted for as variable lease cost, which are expensed as incurred.

The components of lease cost are as follows (in thousands):



	Year Ended December 31, 2019
Operating lease cost	$	18,486
Variable lease cost	3,756
Sublease income	(528		)
Total lease cost	$	21,714

Supplemental cash flow information related to leases is as follows (in thousands):



	Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	19,578
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	$	10,478

Supplemental balance sheet information related to leases is as follows (in thousands, except lease term and discount rate):



	December 31, 2019
Assets:
Operating lease right-of-use assets	$	57,382
Liabilities:
Other current liabilities	$	15,049
Operating lease liabilities	46,766
Total operating lease liabilities	$	61,815
Weighted average remaining operating lease term (years)	6.58
Weighted average operating lease discount rate	4.00		%

The Company uses its incremental borrowing rate as the discount rate. As the Company enters into operating leases in multiple jurisdictions and denominated in currencies other than the U.S. dollar, judgment is used to determine the Company’s incremental borrowing rate including (1) conversion of its subordinated borrowing rate (using published yield curves) to an unsubordinated and collateralized rate, (2) adjusting the rate to align with the term of each lease, and (3) adjusting the rate to incorporate the effects of the currency in which the lease is denominated.

Maturities on lease liabilities as of December 31, 2019, are as follows (in thousands):



Fiscal Year Ending December 31,
2020	$	17,180
2021	13,050
2022	10,066
2023	7,787
2024	4,951
Thereafter	17,250
Total lease payments	70,284
Less: imputed interest	8,469
Total lease liability	$	61,815

Future payments under operating lease agreements accounted for under ASC 840, Leases, as of December 31, 2018, were as follows (in thousands):



Fiscal Year Ending December 31,
2019	$	16,925
2020	14,212
2021	10,538
2022	8,178
2023	6,529
Thereafter	21,196
Total minimum lease payments	$	77,578

As of December 31, 2019, the Company has additional operating leases for office facilities that have not yet commenced with minimum lease payments of $2.1 million. These operating leases will commence in fiscal year 2020, with lease terms of one to five years.

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies In accordance with ASC 460, Guarantees, the Company recognizes the fair value for guarantee and indemnification arrangements it issues or modifies if these arrangements are within the scope of the interpretation. In addition, the Company must continue to monitor the conditions that are subject to the guarantees and indemnifications, as required under the previously existing generally accepted accounting principles, to identify if a loss has occurred. If the Company determines it is probable a loss has occurred, then any estimable loss would be recognized under those guarantees and indemnifications. Under its customer agreements, the Company may agree to indemnify, defend, and hold harmless its customers from and against certain losses, damages, and costs arising from claims alleging that the use of its software infringes the intellectual property of a third-party. Historically, the Company has not been required to pay material amounts in connection with claims asserted under these provisions, and accordingly, the Company has not recorded a liability relating to such provisions. Under its customer agreements, the Company also may represent and warrant to customers that its software will operate substantially in conformance with its documentation, and that the services the Company performs will be performed in a workmanlike manner by personnel reasonably qualified by experience and expertise to perform their assigned tasks. Historically, only minimal costs have been incurred relating to the satisfaction of warranty claims. In addition, from time to time, the Company may guarantee the performance of a contract on behalf of one or more of its subsidiaries, or a subsidiary may guarantee the performance of a contract on behalf of another subsidiary. Other guarantees include promises to indemnify, defend, and hold harmless the Company’s executive officers, directors, and certain other key officers. The Company’s certificate of incorporation provides that it will indemnify and advance expenses to its directors and officers to the maximum extent permitted by Delaware law. The indemnification covers any expenses and liabilities reasonably incurred by a person, by reason of the fact that such person is, was, or has agreed to be a director or officer, in connection with the investigation, defense, and settlement of any threatened, pending, or completed action, suit, proceeding, or claim. The Company’s certificate of incorporation authorizes the use of indemnification agreements, and the Company enters into such agreements with its directors and certain officers from time to time. These indemnification agreements typically provide for a broader scope of the Company’s obligation to indemnify the directors and officers than set forth in the certificate of incorporation. The Company’s contractual indemnification obligations under these agreements are in addition to the respective directors’ and officers’ rights under the certificate of incorporation or under Delaware law. Legal Proceedings On September 23, 2015, a jury verdict was returned against ACI Worldwide Corp. (“ACI Corp.”), a subsidiary of the Company, for $43.8 million in connection with counterclaims brought by Baldwin Hackett & Meeks, Inc. (“BHMI”) in the District Court of Douglas County, Nebraska. On September 21, 2012, ACI Corp. sued BHMI for misappropriation of ACI Corp.’s trade secrets. The jury found that ACI Corp. had not met its burden of proof regarding these claims. On March 6, 2013, BHMI asserted counterclaims alleged to arise out of ACI Corp.’s filing of its lawsuit. The court entered a judgment against ACI Corp. for $43.8 million for damages and $2.7 million for attorney fees and costs. ACI Corp. disagreed with the verdicts and judgment, and, after the trial court denied ACI Corp.’s post-judgment motions, ACI Corp. perfected an appeal of the dismissal of its claims against BHMI and the judgment in favor of BHMI. On June 9, 2017, the Nebraska Supreme Court affirmed the District Court judgment. The Company recorded expense of $48.1 million during the year ended December 31, 2017, of which $46.7 million is included in general and administrative expense and $1.4 million is included in interest expense in the accompanying consolidated statement of operations. The Company paid the judgment, including interest, during the year ended December 31, 2017.

Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

The following consists of quarterly financial data (in thousands, except per share amounts):



	Quarter Ended												Year Ended
	March 31, 2019			June 30, 2019			September 30, 2019			December 31, 2019			December 31, 2019
Revenues:
Software as a service and platform as a service	$	108,557		$	172,499		$	192,952		$	203,661		$	677,669
License	21,078			52,541			92,058			122,584			288,261
Maintenance	55,111			51,922			52,638			53,738			213,409
Services	21,109			20,656			17,253			19,937			78,955
Total revenues	205,855			297,618			354,901			399,920			1,258,294
Operating expenses:
Cost of revenue (1)	114,941			155,240			174,168			173,104			617,453
Research and development	36,194			39,235			36,543			34,601			146,573
Selling and marketing	29,430			32,962			30,417			30,875			123,684
General and administrative	31,517			49,319			27,286			27,174			135,296
Depreciation and amortization	21,866			26,744			31,169			31,753			111,532
Total operating expenses	233,948			303,500			299,583			297,507			1,134,538
Operating income (loss)	(28,093		)	(5,882		)	55,318			102,413			123,756
Other income (expense):
Interest expense	(11,614		)	(15,323		)	(18,987		)	(18,109		)	(64,033		)
Interest income	3,033			2,997			2,988			2,949			11,967
Other, net	(1,912		)	1,402			(2,369		)	3,399			520
Total other income (expense)	(10,493		)	(10,924		)	(18,368		)	(11,761		)	(51,546		)
Income (loss) before income taxes	(38,586		)	(16,806		)	36,950			90,652			72,210
Income tax expense (benefit)	(12,623		)	(22,531		)	5,136			35,166			5,148
Net income (loss)	$	(25,963	)	$	5,725		$	31,814		$	55,486		$	67,062
Earnings (loss) per share
Basic	$	(0.22	)	$	0.05		$	0.27		$	0.48		$	0.58
Diluted	$	(0.22	)	$	0.05		$	0.27		$	0.47		$	0.57


(1)	The cost of revenue excludes charges for depreciation but includes amortization of purchased and developed software for resale.



	Quarter Ended												Year Ended
	March 31, 2018			June 30, 2018			September 30, 2018			December 31, 2018			December 31, 2018
Revenues:
Software as a service and platform as a service	$	104,280		$	113,600		$	104,519		$	110,626		$	433,025
License	28,046			45,555			68,964			137,991			280,556
Maintenance	56,659			55,048			54,373			53,065			219,145
Services	20,325			20,792			17,669			18,268			77,054
Total revenues	209,310			234,995			245,525			319,950			1,009,780
Operating expenses:
Cost of revenue (1)	107,336			116,261			102,473			104,281			430,351
Research and development	36,791			37,862			36,008			32,969			143,630
Selling and marketing	31,893			33,160			28,252			24,576			117,881
General and administrative	28,649			28,837			29,537			20,399			107,422
Depreciation and amortization	21,345			21,033			20,896			21,311			84,585
Total operating expenses	226,014			237,153			217,166			203,536			883,869
Operating income (loss)	(16,704		)	(2,158		)	28,359			116,414			125,911
Other income (expense):
Interest expense	(9,365		)	(9,717		)	(12,573		)	(9,875		)	(41,530		)
Interest income	2,744			2,742			2,763			2,893			11,142
Other, net	(55		)	(1,677		)	(1,304		)	(688		)	(3,724		)
Total other income (expense)	(6,676		)	(8,652		)	(11,114		)	(7,670		)	(34,112		)
Income (loss) before income taxes	(23,380		)	(10,810		)	17,245			108,744			91,799
Income tax expense (benefit)	(3,952		)	3,764			2,012			21,054			22,878
Net income (loss)	$	(19,428	)	$	(14,574	)	$	15,233		$	87,690		$	68,921
Earnings (loss) per share
Basic	$	(0.17	)	$	(0.13	)	$	0.13		$	0.76		$	0.59
Diluted	$	(0.17	)	$	(0.13	)	$	0.13		$	0.74		$	0.59

(1)

The cost of revenue excludes charges for depreciation but includes amortization of purchased and developed software for resale.

Nature of Business and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Nature of Business

Consolidated Financial Statements

Capital Stock

Use of Estimates

Cash and Cash Equivalents

Settlement Assets and Liabilities

Off Balance Sheet Settlement Accounts

Property and Equipment



		December 31,
	Useful Lives	2019			2018
Computer and office equipment	3 - 5 years	$	143,942		$	129,359
Leasehold improvements	Lesser of useful life of improvement or remaining life of lease	33,346			32,096
Furniture and fixtures	7 years	12,980			12,500
Building and improvements	7 - 30 years	14,553			14,381
Land	Non-depreciable	1,785			1,785
Property and equipment, gross		206,606			190,121
Less: accumulated depreciation		(136,226		)	(117,392		)
Property and equipment, net		$	70,380		$	72,729

Software

Business Combinations

Other estimates associated with the accounting for acquisitions may change as additional information becomes available regarding the assets acquired and liabilities assumed.

Fair Value


•	Level 1 Inputs – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.

•


•	Level 3 Inputs – Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities.

The fair values of cash and cash equivalents approximate the carrying values due to the short period of time to maturity (Level 2 of the fair value hierarchy).

Goodwill and Other Intangibles

Changes in the carrying amount of goodwill attributable to each reporting unit during the year ended December 31, 2019, were as follows (in thousands):



	ACI On Demand		ACI On Premise			Total
Gross Balance, prior to December 31, 2018	$	183,783	$	773,340		$	957,123
Total impairment prior to December 31, 2018	—		(47,432		)	(47,432		)
Balance, December 31, 2018	183,783		725,908			909,691
Goodwill from acquisitions (1)	370,834		—			370,834
Balance, December 31, 2019	$	554,617	$	725,908		$	1,280,525

(1)

Equity Method Investments

Equity Method Investment

Impairment of Long-Lived Assets

Treasury Stock

Stock-Based Compensation Plans

Translation of Foreign Currencies

Income Taxes

New Accounting Standards

New Accounting Standards Recently Adopted

Recently Issued Accounting Standards Not Yet Effective

Earnings Per Share

Segment Information

The Company reports financial performance based on its segments, ACI On Premise and ACI On Demand, and analyzes Segment Adjusted EBITDA as a measure of segment profitability.

Nature of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Summary of Other Current Liabilities

The components of other current liabilities are included in the following table (in thousands):



	December 31,
	2019		2018
Operating lease liabilities	$	15,049	$	—
Vendor financed licenses	9,667		3,551
Royalties payable	6,107		11,318
Accrued interest	9,212		8,407
Other	36,936		38,412
Total other current liabilities	$	76,971	$	61,688

Summary of Property and Equipment Estimated Useful Lives and Balances

As of December 31, 2019 and 2018, net property and equipment consisted of the following (in thousands):



		December 31,
	Useful Lives	2019			2018
Computer and office equipment	3 - 5 years	$	143,942		$	129,359
Leasehold improvements	Lesser of useful life of improvement or remaining life of lease	33,346			32,096
Furniture and fixtures	7 years	12,980			12,500
Building and improvements	7 - 30 years	14,553			14,381
Land	Non-depreciable	1,785			1,785
Property and equipment, gross		206,606			190,121
Less: accumulated depreciation		(136,226		)	(117,392		)
Property and equipment, net		$	70,380		$	72,729

Summary of Changes in the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill attributable to each reporting unit during the year ended December 31, 2019, were as follows (in thousands):



	ACI On Demand		ACI On Premise			Total
Gross Balance, prior to December 31, 2018	$	183,783	$	773,340		$	957,123
Total impairment prior to December 31, 2018	—		(47,432		)	(47,432		)
Balance, December 31, 2018	183,783		725,908			909,691
Goodwill from acquisitions (1)	370,834		—			370,834
Balance, December 31, 2019	$	554,617	$	725,908		$	1,280,525

(1)

Revenue (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Summary of Total Receivables, Net

Total receivables, net is comprised of the following (in thousands):



	December 31,
	2019			2018
Billed receivables	$	213,654		$	239,275
Allowance for doubtful accounts	(5,149		)	(3,912		)
Billed receivables, net	208,505			235,363
Accrued receivables	399,302			336,858
Significant financing component	(35,569		)	(35,029		)
Total accrued receivables, net	363,733			301,829
Less: current accrued receivables	161,714			123,053
Less: current significant financing component	(11,022		)	(10,234		)
Total long-term accrued receivables, net	213,041			189,010
Total receivables, net	$	572,238		$	537,192

Summary of Allowance for Doubtful Accounts Receivable

The following reflects activity in the Company’s allowance for doubtful accounts receivable for the periods indicated (in thousands):



	Years Ended December 31,
	2019			2018			2017
Balance, beginning of period	$	(3,912	)	$	(4,799	)	$	(3,873	)
Provision increase	(2,561		)	(1,505		)	(2,086		)
Amounts written off, net of recoveries	1,368			2,269			1,305
Foreign currency translation adjustments and other	(44		)	123			(145		)
Balance, end of period	$	(5,149	)	$	(3,912	)	$	(4,799	)

Summary of Changes in Deferred Revenue

Changes in deferred revenue were as follows (in thousands):



Balance, January 1, 2018	$	145,344
Deferral of revenue	215,188
Recognition of deferred revenue	(200,061		)
Foreign currency translation	(4,336		)
Balance, December 31, 2018	156,135
Deferral of revenue	149,253
Recognition of deferred revenue	(187,069		)
Foreign currency translation	620
Balance, December 31, 2019	$	118,939

Acquisition (Tables)

12 Months Ended

Dec. 31, 2019

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed



	Amount		Weighted Average Useful Lives
Current assets:
Cash and cash equivalents	$	135
Receivables, net of allowances	17,658
Settlement assets	239,604
Prepaid expenses	317
Other current assets	19,585
Total current assets acquired	277,299
Noncurrent assets:
Goodwill	366,627
Software	113,600		7 years
Customer relationships	208,500		15 years
Trade names	10,900		5 years
Other noncurrent assets	3,746
Total assets acquired	980,672
Current liabilities:
Accounts payable	6,743
Settlement liabilities	212,892
Employee compensation	1,959
Other current liabilities	3,802
Total current liabilities acquired	225,396
Noncurrent liabilities:
Other noncurrent liabilities	1,219
Total liabilities acquired	226,615
Net assets acquired	$	754,057

Summary of Unaudited Summarized Pro Forma Financial Information

The following is the unaudited summarized pro forma financial information for the periods presented (in thousands, except per share data):



	Years Ended December 31,
	2019		2018
Pro forma revenue	$	1,382,957	$	1,361,729
Pro forma net income	$	82,003	$	88,428
Pro forma income per share:
Basic	$	0.71	$	0.76
Diluted	$	0.69	$	0.75

Software and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Carrying Amount and Accumulated Amortization of Software and Other Intangible Assets

The carrying amount and accumulated amortization of the Company's software assets subject to amortization at each balance sheet date are as follows (in thousands):



	December 31, 2019							December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Balance		Gross Carrying Amount		Accumulated Amortization			Net Balance
Software for resale	$	138,823	$	(122,061	)	$	16,762	$	137,666	$	(110,124	)	$	27,542
Software for internal use	400,065		(182,310		)	217,755		251,804		(142,118		)	109,686
Total software	$	538,888	$	(304,371	)	$	234,517	$	389,470	$	(252,242	)	$	137,228

The carrying amount and accumulated amortization of the Company’s other intangible assets subject to amortization at each balance sheet date are as follows (in thousands):



	December 31, 2019							December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Balance		Gross Carrying Amount		Accumulated Amortization			Net Balance
Customer relationships	$	507,785	$	(160,775	)	$	347,010	$	297,991	$	(131,187	)	$	166,804
Trademarks and trade names	27,312		(17,353		)	9,959		16,348		(15,025		)	1,323
Total other intangible assets	$	535,097	$	(178,128	)	$	356,969	$	314,339	$	(146,212	)	$	168,127

Summary of Estimated Intangible Asset Amortization Expense in Future Fiscal Years

Based on capitalized intangible assets as of December 31, 2019, estimated amortization expense amounts in future fiscal years are as follows (in thousands):



Fiscal Year Ending December 31,	Software Amortization		Other Intangible Assets Amortization
2020	$	70,056	$	37,215
2021	55,595		36,730
2022	37,278		36,583
2023	25,406		36,270
2024	19,983		31,781
Thereafter	26,199		178,390
Total	$	234,517	$	356,969

Debt (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of Maturities on Debt Outstanding

Maturities on debt outstanding at December 31, 2019, are as follows (in thousands):



Fiscal year ending December 31,
2020	$	38,950
2021	38,950
2022	50,431
2023	69,906
2024	796,823
Thereafter	400,000
Total	$	1,395,060

Summary of Total Debt

Total debt is comprised of the following (in thousands):



	December 31,
	2019			2018
Term loans	$	756,060		$	284,959
Revolving credit facility	239,000			—
5.750% Senior Notes, due August 2026	400,000			400,000
Debt issuance costs	(21,905		)	(13,203		)
Total debt	1,373,155			671,756
Less current portion of term credit facility	38,950			23,747
Less current portion of debt issuance costs	(4,802		)	(2,980		)
Total long-term debt	$	1,339,007		$	650,989

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 942
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-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Corporate Restructuring and Other Organizational Changes (Tables)

12 Months Ended

Dec. 31, 2019

Restructuring and Related Activities [Abstract]

Summary of Facility Closures Liability

A summary of the facility closures liability is as follows (in thousands):



Balance, December 31, 2017	$	5,945
Amounts paid during the period	(1,732		)
Foreign currency translation adjustments	(86		)
Balance, December 31, 2018	4,127
Amounts paid during the period	(1,554		)
Foreign currency translation adjustments	29
Balance, December 31, 2019	$	2,602

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Summary of Reconciliation of Weighted Average Share Amounts used to Compute Both Basic and Diluted Earnings Per Share

The following table reconciles the weighted average share amounts used to compute both basic and diluted earnings per share (in thousands):



	Years Ended December 31,
	2019	2018	2017
Weighted average shares outstanding:
Basic weighted average shares outstanding	116,175	116,057	118,059
Add: Dilutive effect of stock options, RSUs, and contingently issuable shares	2,396	1,575	1,385
Diluted weighted average shares outstanding	118,571	117,632	119,444

Segment Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Schedule of Selected Financial Data by Reportable Segment

The following is selected financial data for the Company’s reportable segments for the periods indicated (in thousands):



	Years Ended December 31,
	2019			2018			2017
Revenues
ACI On Premise	$	579,334		$	576,755		$	598,590
ACI On Demand	678,960			433,025			425,601
Total revenue	$	1,258,294		$	1,009,780		$	1,024,191
Segment Adjusted EBITDA
ACI On Premise	$	321,305		$	323,902		$	347,094
ACI On Demand	66,501			12,015			(1,832		)
Depreciation and amortization	(122,569		)	(97,350		)	(102,224		)
Stock-based compensation expense	(36,763		)	(20,360		)	(13,683		)
Corporate and unallocated expenses	(104,718		)	(92,296		)	(144,715		)
Interest, net	(52,066		)	(30,388		)	(38,449		)
Other, net	520			(3,724		)	(2,619		)
Income before income taxes	$	72,210		$	91,799		$	43,572
Depreciation and amortization
ACI On Premise	$	11,992		$	11,634		$	13,094
ACI On Demand	34,395			31,541			34,171
Corporate	76,182			54,175			54,959
Total depreciation and amortization	$	122,569		$	97,350		$	102,224
Stock-based compensation expense
ACI On Premise	$	7,651		$	4,348		$	2,234
ACI On Demand	7,995			4,338			2,230
Corporate	21,117			11,674			9,219
Total stock-based compensation expense	$	36,763		$	20,360		$	13,683

Schedule of Revenue by Primary Geographic Markets and Primary Solution Categories

The following is revenue by primary geographic market and primary solution category for the Company’s reportable segments for the periods indicated (in thousands):



	Year Ended December 31, 2019						Year Ended December 31, 2018
	ACI On Premise		ACI On Demand		Total		ACI On Premise		ACI On Demand		Total
Primary Geographic Markets
Americas - United States	$	172,660	$	609,160	$	781,820	$	131,382	$	369,097	$	500,479
Americas - Other	68,020		9,350		77,370		61,969		9,577		71,546
EMEA	251,035		50,629		301,664		296,157		48,889		345,046
Asia Pacific	87,619		9,821		97,440		87,247		5,462		92,709
Total	$	579,334	$	678,960	$	1,258,294	$	576,755	$	433,025	$	1,009,780
Primary Solution Categories
Bill Payments	$	—	$	510,300	$	510,300	$	—	$	275,526	$	275,526
Digital Channels	32,980		44,731		77,711		35,231		40,342		75,573
Merchant Payments	25,693		77,204		102,897		30,447		64,956		95,403
Payments Intelligence	33,790		36,019		69,809		42,353		41,330		83,683
Real-Time Payments	97,153		3,456		100,609		92,068		2,193		94,261
Retail Payments	389,718		7,250		396,968		376,656		8,678		385,334
Total	$	579,334	$	678,960	$	1,258,294	$	576,755	$	433,025	$	1,009,780



	Year Ended December 31, 2017
	ACI On Premise		ACI On Demand		Total
Primary Geographic Markets
Americas - United States	$	175,682	$	365,553	$	541,235
Americas - Other	72,802		9,429		82,231
EMEA	270,388		47,872		318,260
Asia Pacific	79,718		2,747		82,465
Total	$	598,590	$	425,601	$	1,024,191
Primary Solution Categories
Bill Payments	$	—	$	271,421	$	271,421
Digital Channels	47,973		46,063		94,036
Merchant Payments	27,155		56,018		83,173
Payments Intelligence	32,478		41,628		74,106
Real-Time Payments	70,087		2,785		72,872
Retail Payments	420,897		7,686		428,583
Total	$	598,590	$	425,601	$	1,024,191

Schedule of Long-lived Assets by Geographic Location

The following is the Company’s long-lived assets by geographic location for the periods indicated (in thousands):



	December 31,
	2019		2018
Long-lived Assets
United States	$	1,526,046	$	811,435
Other	759,501		717,495
Total	$	2,285,547	$	1,528,930

Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2019

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Stock Option Activity

A summary of stock option activity is as follows:



	Number of Shares		Weighted Average Exercise Price ($)		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value of In-the-Money Options ($)
Outstanding, December 31, 2018	4,864,836		$	17.76
Exercised	(854,524	)	15.78
Forfeited	(3,496	)	17.89
Outstanding, December 31, 2019	4,006,816		$	18.18	3.71	$	78,949,941
Exercisable, December 31, 2019	3,462,664		$	17.86	3.70	$	69,349,255

Black-Scholes Option-Pricing Model

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Grant Date Fair Value Weighted Average Assumptions, Options



	Years Ended December 31,
	2018		2017
Expected life (years)	5.6		5.6
Risk-free interest rate	2.7	%	1.9	%
Expected volatility	26.4	%	29.4	%
Expected dividend yield	—		—

LTIP Performance Shares

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Nonvested Performance Award Activity

A summary of the nonvested LTIP performance shares is as follows:



	Number of Shares at Expected Attainment		Weighted Average Grant Date Fair Value
Nonvested at December 31, 2018	540,697		$	19.83
Forfeited	(56,567	)	18.80
Change in expected attainment	185,339		20.09
Nonvested at December 31, 2019	669,469		$	20.12

Restricted Share Awards (RSAs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Nonvested Restricted Share Award Activity

A summary of nonvested RSAs is as follows:



	Number of Shares		Weighted Average Grant Date Fair Value
Nonvested at December 31, 2018	213,337		$	20.21
Vested	(106,610	)	20.17
Forfeited	(13,885	)	20.64
Nonvested at December 31, 2019	92,842		$	20.13

Total Shareholder Return Awards (TSRs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Nonvested Performance Award Activity

A summary of nonvested TSRs is as follows:



	Number of Shares at Expected Attainment		Weighted Average Grant Date Fair Value
Nonvested as of December 31, 2018	718,931		$	29.25
Granted	436,674		47.90
Forfeited	(93,314	)	35.37
Nonvested as of December 31, 2019	1,062,291		$	35.77

Total Shareholder Return Awards (TSRs) | Monte Carlo Simulation Model

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Grant Date Fair Value Weighted Average Assumptions, Awards Other Than Options

The grant date fair value of the TSRs was estimated using the following weighted-average assumptions:



	Years Ended December 31,
	2019		2018		2017
Expected life (years)	2.8		2.9		2.9
Interest rate	2.5	%	2.4	%	1.5	%
Volatility	29.3	%	28.0	%	26.5	%
Expected dividend yield	—		—		—

Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of Nonvested Restricted Share Unit Activity

A summary of nonvested RSUs is as follows:



	Number of Shares		Weighted Average Grant Date Fair Value
Nonvested as of December 31, 2018	651,045		$	23.82
Granted	742,579		33.28
Vested	(259,634	)	24.16
Forfeited	(124,586	)	29.79
Nonvested as of December 31, 2019	1,009,404		$	29.96

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Components of Income Before Income Taxes

For financial reporting purposes, income before income taxes includes the following components (in thousands):



	Years Ended December 31,
	2019			2018		2017
United States	$	(16,317	)	$	16,312	$	(42,863	)
Foreign	88,527			75,487		86,435
Total	$	72,210		$	91,799	$	43,572

Summary of Income Tax Expense (Benefit)

The expense (benefit) for income taxes consists of the following (in thousands):



	Years Ended December 31,
	2019			2018			2017
Federal
Current	$	3,738		$	6,545		$	2,586
Deferred	(25,150		)	(6,587		)	19,212
Total	(21,412		)	(42		)	21,798
State
Current	590			4,441			(1,857		)
Deferred	342			(2,649		)	(1,324		)
Total	932			1,792			(3,181		)
Foreign
Current	22,960			17,626			16,048
Deferred	2,668			3,502			3,772
Total	25,628			21,128			19,820
Total	$	5,148		$	22,878		$	38,437

Summary of Differences Between Income Tax Expense Computed at Statutory Federal Income Tax Rate and Per Consolidated Statements of Operations

Differences between the income tax expense computed at the statutory federal income tax rate and per the consolidated statements of operations are summarized as follows (in thousands):



	Years Ended December 31,
	2019			2018			2017
Tax expense at federal rate of 21% (35% pre-2018)	$	15,164		$	19,278		$	15,250
State income taxes, net of federal benefit	1,227			5,246			(2,238		)
Change in valuation allowance	(12,760		)	12,657			(1,884		)
Foreign tax rate differential	(2,535		)	(4,796		)	(15,622		)
Unrecognized tax benefit increase	898			1,262			3,007
Tax effect of foreign operations	6,698			8,546			5,532
Tax benefit of research & development	(2,506		)	(2,557		)	(1,904		)
Transition tax	—			(8,112		)	20,867
Revaluation of deferred tax balances	—			(4,937		)	14,953
Performance-based compensation	(560		)	(4,541		)	2,081
Domestic production activities	—			—			(3,793		)
Other	(478		)	832			2,188
Income tax provision	$	5,148		$	22,878		$	38,437

Summary of Deferred Tax Assets and Liabilities



	December 31,
	2019			2018
Deferred income tax assets:
Net operating loss carryforwards	$	23,030		$	25,745
Tax credits	52,902			43,838
Compensation	18,791			15,934
Deferred revenue	25,599			27,587
Research and development expense deferral	—			12,631
Other	4,065			5,393
Gross deferred income tax assets	124,387			131,128
Less: valuation allowance	(7,653		)	(20,415		)
Net deferred income tax assets	$	116,734		$	110,713
Deferred income tax liabilities:
Depreciation and amortization	$	(52,978	)	$	(60,872	)
Deferred revenue	(44,198		)	(54,508		)
Total deferred income tax liabilities	(97,176		)	(115,380		)
Net deferred income taxes	$	19,558		$	(4,667	)
Deferred income taxes / liabilities included in the balance sheet are:
Deferred income tax asset – noncurrent	$	51,611		$	27,048
Deferred income tax liability – noncurrent	(32,053		)	(31,715		)
Net deferred income taxes	$	19,558		$	(4,667	)

Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits for the years ended December 31 is as follows (in thousands):



	2019			2018			2017
Balance of unrecognized tax benefits at beginning of year	$	28,406		$	27,237		$	24,278
Increases for tax positions of prior years	2,784			315			2,478
Decreases for tax positions of prior years	(96		)	(61		)	(114		)
Increases for tax positions established for the current period	2,542			1,185			1,677
Decreases for settlements with taxing authorities	(220		)	—			(154		)
Reductions resulting from lapse of applicable statute of limitation	(4,462		)	(115		)	(1,155		)
Adjustment resulting from foreign currency translation	46			(155		)	227
Balance of unrecognized tax benefits at end of year	$	29,000		$	28,406		$	27,237

Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Summary of Components of Lease Cost

The components of lease cost are as follows (in thousands):



	Year Ended December 31, 2019
Operating lease cost	$	18,486
Variable lease cost	3,756
Sublease income	(528		)
Total lease cost	$	21,714

Summary of Supplemental Cash Flow Information

Supplemental cash flow information related to leases is as follows (in thousands):



	Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	19,578
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	$	10,478

Summary of Supplemental Balance Sheet Information

Supplemental balance sheet information related to leases is as follows (in thousands, except lease term and discount rate):



	December 31, 2019
Assets:
Operating lease right-of-use assets	$	57,382
Liabilities:
Other current liabilities	$	15,049
Operating lease liabilities	46,766
Total operating lease liabilities	$	61,815
Weighted average remaining operating lease term (years)	6.58
Weighted average operating lease discount rate	4.00		%

Schedule of Maturities on Lease Liabilities

Maturities on lease liabilities as of December 31, 2019, are as follows (in thousands):



Fiscal Year Ending December 31,
2020	$	17,180
2021	13,050
2022	10,066
2023	7,787
2024	4,951
Thereafter	17,250
Total lease payments	70,284
Less: imputed interest	8,469
Total lease liability	$	61,815

Schedule of Future Payments Under Operating Lease Agreements, ASC 840

Future payments under operating lease agreements accounted for under ASC 840, Leases, as of December 31, 2018, were as follows (in thousands):



Fiscal Year Ending December 31,
2019	$	16,925
2020	14,212
2021	10,538
2022	8,178
2023	6,529
Thereafter	21,196
Total minimum lease payments	$	77,578

Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Summary of Quarterly Financial Data (Unaudited)

The following consists of quarterly financial data (in thousands, except per share amounts):



	Quarter Ended												Year Ended
	March 31, 2019			June 30, 2019			September 30, 2019			December 31, 2019			December 31, 2019
Revenues:
Software as a service and platform as a service	$	108,557		$	172,499		$	192,952		$	203,661		$	677,669
License	21,078			52,541			92,058			122,584			288,261
Maintenance	55,111			51,922			52,638			53,738			213,409
Services	21,109			20,656			17,253			19,937			78,955
Total revenues	205,855			297,618			354,901			399,920			1,258,294
Operating expenses:
Cost of revenue (1)	114,941			155,240			174,168			173,104			617,453
Research and development	36,194			39,235			36,543			34,601			146,573
Selling and marketing	29,430			32,962			30,417			30,875			123,684
General and administrative	31,517			49,319			27,286			27,174			135,296
Depreciation and amortization	21,866			26,744			31,169			31,753			111,532
Total operating expenses	233,948			303,500			299,583			297,507			1,134,538
Operating income (loss)	(28,093		)	(5,882		)	55,318			102,413			123,756
Other income (expense):
Interest expense	(11,614		)	(15,323		)	(18,987		)	(18,109		)	(64,033		)
Interest income	3,033			2,997			2,988			2,949			11,967
Other, net	(1,912		)	1,402			(2,369		)	3,399			520
Total other income (expense)	(10,493		)	(10,924		)	(18,368		)	(11,761		)	(51,546		)
Income (loss) before income taxes	(38,586		)	(16,806		)	36,950			90,652			72,210
Income tax expense (benefit)	(12,623		)	(22,531		)	5,136			35,166			5,148
Net income (loss)	$	(25,963	)	$	5,725		$	31,814		$	55,486		$	67,062
Earnings (loss) per share
Basic	$	(0.22	)	$	0.05		$	0.27		$	0.48		$	0.58
Diluted	$	(0.22	)	$	0.05		$	0.27		$	0.47		$	0.57


(1)	The cost of revenue excludes charges for depreciation but includes amortization of purchased and developed software for resale.



	Quarter Ended												Year Ended
	March 31, 2018			June 30, 2018			September 30, 2018			December 31, 2018			December 31, 2018
Revenues:
Software as a service and platform as a service	$	104,280		$	113,600		$	104,519		$	110,626		$	433,025
License	28,046			45,555			68,964			137,991			280,556
Maintenance	56,659			55,048			54,373			53,065			219,145
Services	20,325			20,792			17,669			18,268			77,054
Total revenues	209,310			234,995			245,525			319,950			1,009,780
Operating expenses:
Cost of revenue (1)	107,336			116,261			102,473			104,281			430,351
Research and development	36,791			37,862			36,008			32,969			143,630
Selling and marketing	31,893			33,160			28,252			24,576			117,881
General and administrative	28,649			28,837			29,537			20,399			107,422
Depreciation and amortization	21,345			21,033			20,896			21,311			84,585
Total operating expenses	226,014			237,153			217,166			203,536			883,869
Operating income (loss)	(16,704		)	(2,158		)	28,359			116,414			125,911
Other income (expense):
Interest expense	(9,365		)	(9,717		)	(12,573		)	(9,875		)	(41,530		)
Interest income	2,744			2,742			2,763			2,893			11,142
Other, net	(55		)	(1,677		)	(1,304		)	(688		)	(3,724		)
Total other income (expense)	(6,676		)	(8,652		)	(11,114		)	(7,670		)	(34,112		)
Income (loss) before income taxes	(23,380		)	(10,810		)	17,245			108,744			91,799
Income tax expense (benefit)	(3,952		)	3,764			2,012			21,054			22,878
Net income (loss)	$	(19,428	)	$	(14,574	)	$	15,233		$	87,690		$	68,921
Earnings (loss) per share
Basic	$	(0.17	)	$	(0.13	)	$	0.13		$	0.76		$	0.59
Diluted	$	(0.17	)	$	(0.13	)	$	0.13		$	0.74		$	0.59

(1)

The cost of revenue excludes charges for depreciation but includes amortization of purchased and developed software for resale.

Nature of Business and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 23, 2019	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Summary of Significant Accounting Policies [Line Items]
Other current assets		$ 24,200		$ 14,260
Other current liabilities		76,971		61,688
Settlement assets		391,039		32,256
Settlement liabilities		368,719		31,605
Amount of off balance sheet settlement funds		$ 274,000		256,500
Goodwill measurement period		1 year
Right-of-use assets		$ 57,382		0
Operating lease liability		$ 61,815
Accounting Standards Update 2016-02
Summary of Significant Accounting Policies [Line Items]
Right-of-use assets			$ 63,300
Operating lease liability			$ 68,600
Level 2 \| Senior Notes \| 5.750% Senior Notes due 2026
Summary of Significant Accounting Policies [Line Items]
Stated interest rate (percentage)		5.75%
Fair value of long-term debt		$ 432,000		395,000
India Payment Technology and Services Company
Summary of Significant Accounting Policies [Line Items]
Payments to acquire investment interest	$ 18,300
Percentage of voting interests acquired	30.00%
Equity method investments, initial amount recorded	$ 18,500
Software for resale \| Minimum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life		5 years
Software for internal use \| Minimum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life		1 year
Software for internal use \| Maximum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life		10 years
Other intangible assets \| Minimum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life		3 years
Other intangible assets \| Maximum
Summary of Significant Accounting Policies [Line Items]
Estimated useful life		20 years
Prior Period Adjustment
Summary of Significant Accounting Policies [Line Items]
Other current assets				(32,300)
Other current liabilities				(31,600)
Settlement assets				32,300
Settlement liabilities				$ 31,600

Nature of Business and Summary of Significant Accounting Policies - Summary of Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Current Liabilities
Operating lease liabilities	$ 15,049	$ 0
Vendor financed licenses	9,667	3,551
Royalties payable	6,107	11,318
Accrued interest	9,212	8,407
Other	36,936	38,412
Total other current liabilities	$ 76,971	$ 61,688

Nature of Business and Summary of Significant Accounting Policies - Summary of Property and Equipment Estimated Useful Lives and Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 206,606	$ 190,121
Less: accumulated depreciation	(136,226)	(117,392)
Property and equipment, net	70,380	72,729
Computer and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 143,942	129,359
Computer and office equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives	3 years
Computer and office equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 33,346	32,096
Useful Lives, description	Lesser of useful life of improvement or remaining life of lease
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 12,980	12,500
Useful Lives	7 years
Building and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 14,553	14,381
Building and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives	7 years
Building and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives	30 years
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,785	$ 1,785
Useful Lives, description	Non-depreciable

Nature of Business and Summary of Significant Accounting Policies - Summary of Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Goodwill, gross amount prior to beginning of period		$ 957,123
Goodwill, total impairment prior to beginning of period		(47,432)
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 909,691
Goodwill from acquisitions	370,834
Goodwill, end of period	1,280,525
ACI On Demand
Goodwill [Line Items]
Goodwill, gross amount prior to beginning of period		183,783
Goodwill, total impairment prior to beginning of period		0
Goodwill [Roll Forward]
Goodwill, beginning of period	183,783
Goodwill from acquisitions	370,834
Goodwill, end of period	554,617
ACI On Premise
Goodwill [Line Items]
Goodwill, gross amount prior to beginning of period		773,340
Goodwill, total impairment prior to beginning of period		$ (47,432)
Goodwill [Roll Forward]
Goodwill, beginning of period	725,908
Goodwill from acquisitions	0
Goodwill, end of period	$ 725,908

Revenue - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue [Line Items]
Software license arrangements, warranty period	90 days
Software license arrangements, initial post contract customer support period	1 year
Revenue allocated to remaining performance obligations	$ 678.0
Revenue allocated to remaining performance obligations, percentage to be recognized over the next 12 months	48.00%
Performance obligation satisfied in previous periods	$ 33.9
Costs to Obtain a Contract
Revenue [Line Items]
Capitalized costs to obtain or fulfill a contract, minimum amortization period	1 year
Capitalized costs to obtain or fulfill a contract, current	$ 0.5	$ 1.3
Capitalized costs to obtain or fulfill a contract, noncurrent	6.9	11.7
Costs to Obtain a Contract \| Selling and Marketing
Revenue [Line Items]
Capitalized costs to obtain or fulfill a contract, amortization expense	6.6	8.4
Costs to Fulfill a Contract
Revenue [Line Items]
Capitalized costs to obtain or fulfill a contract, current	0.2	0.2
Capitalized costs to obtain or fulfill a contract, noncurrent	10.2	12.6
Costs to Fulfill a Contract \| Cost of Revenue
Revenue [Line Items]
Capitalized costs to obtain or fulfill a contract, amortization expense	$ 5.9	$ 4.7

Revenue - Summary of Total Receivables, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue from Contract with Customer [Abstract]
Billed receivables	$ 213,654	$ 239,275
Allowance for doubtful accounts	(5,149)	(3,912)	$ (4,799)	$ (3,873)
Billed receivables, net	208,505	235,363
Accrued receivables	399,302	336,858
Significant financing component	(35,569)	(35,029)
Total accrued receivables, net	363,733	301,829
Less: current accrued receivables	161,714	123,053
Less: current significant financing component	(11,022)	(10,234)
Total long-term accrued receivables, net	213,041	189,010
Total receivables, net	$ 572,238	$ 537,192

Revenue - Summary of Allowance for Doubtful Accounts Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ (3,912)	$ (4,799)	$ (3,873)
Provision increase	(2,561)	(1,505)	(2,086)
Amounts written off, net of recoveries	1,368	2,269	1,305
Foreign currency translation adjustments and other	(44)	123	(145)
Balance, end of period	$ (5,149)	$ (3,912)	$ (4,799)

Revenue - Summary of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Change in Contract with Customer, Liability [Roll Forward]
Deferred revenue, beginning balance	$ 156,135	$ 145,344
Deferral of revenue	149,253	215,188
Recognition of deferred revenue	(187,069)	(200,061)
Foreign currency translation	620	(4,336)
Deferred revenue, ending balance	$ 118,939	$ 156,135

Acquisition - Additional Information (Details)			12 Months Ended
Acquisition - Additional Information (Details)	Oct. 01, 2019 USD ($)	May 09, 2019 USD ($) customer	Dec. 31, 2019 USD ($)	Apr. 05, 2019 USD ($)
Revolving Credit Facility \| Credit Agreement
Business Acquisition [Line Items]
Line of credit, carrying amount			$ 239,000,000.0
RevChip and Transend
Business Acquisition [Line Items]
Asset acquisition purchase price	$ 7,000,000.0
SpeedPay
Business Acquisition [Line Items]
Acquisition purchase price		$ 754,100,000
Acquisition-related costs			22,200,000
Acquisition-related revenue			227,700,000
Acquisition-related operating income			$ 24,900,000
SpeedPay \| Delayed Draw Term Loan \| Credit Agreement \| Bank of America
Business Acquisition [Line Items]
Debt instrument, face amount				$ 500,000,000.0
SpeedPay \| Revolving Credit Facility \| Credit Agreement \| Bank of America
Business Acquisition [Line Items]
Line of credit, carrying amount				$ 250,000,000.0
SpeedPay \| U.S
Business Acquisition [Line Items]
Number of customers \| customer		4,000

Acquisition - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Noncurrent assets:
Goodwill	$ 1,280,525	$ 909,691
SpeedPay
Current assets:
Cash and cash equivalents	135
Receivables, net of allowances	17,658
Settlement assets	239,604
Prepaid expenses	317
Other current assets	19,585
Total current assets acquired	277,299
Noncurrent assets:
Goodwill	366,627
Other noncurrent assets	3,746
Total assets acquired	980,672
Current liabilities:
Accounts payable	6,743
Settlement liabilities	212,892
Employee compensation	1,959
Other current liabilities	3,802
Total current liabilities acquired	225,396
Noncurrent liabilities:
Other noncurrent liabilities	1,219
Total liabilities acquired	226,615
Net assets acquired	754,057
SpeedPay \| Software
Noncurrent assets:
Finite-lived intangibles assets	$ 113,600
Weighted Average Useful Lives	7 years
SpeedPay \| Customer relationships
Noncurrent assets:
Finite-lived intangibles assets	$ 208,500
Weighted Average Useful Lives	15 years
SpeedPay \| Trade names
Noncurrent assets:
Finite-lived intangibles assets	$ 10,900
Weighted Average Useful Lives	5 years

Acquisition - Summary of Unaudited Pro Forma Financial Information (Details) - SpeedPay - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Pro forma revenue	$ 1,382,957	$ 1,361,729
Pro forma net income	$ 82,003	$ 88,428
Pro forma income per share:
Basic (in dollars per share)	$ 0.71	$ 0.76
Diluted (in dollars per share)	$ 0.69	$ 0.75

Software and Other Intangible Assets - Summary of Carrying Amount and Accumulated Amortization of Software Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 538,888	$ 389,470
Accumulated Amortization	(304,371)	(252,242)
Net Balance	234,517	137,228
Software for resale
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	138,823	137,666
Accumulated Amortization	(122,061)	(110,124)
Net Balance	16,762	27,542
Software amortization expense	11,000	12,800	$ 12,800
Software for internal use
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	400,065	251,804
Accumulated Amortization	(182,310)	(142,118)
Net Balance	217,755	109,686
Software amortization expense	$ 55,600	$ 41,700	$ 45,200

Software and Other Intangible Assets - Summary of Carrying Amount and Accumulated Amortization of Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 535,097	$ 314,339
Accumulated Amortization	(178,128)	(146,212)
Total	356,969	168,127
Other intangible assets amortization expense	31,900	19,000	$ 19,400
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	507,785	297,991
Accumulated Amortization	(160,775)	(131,187)
Total	347,010	166,804
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27,312	16,348
Accumulated Amortization	(17,353)	(15,025)
Total	$ 9,959	$ 1,323

Software and Other Intangible Assets - Summary of Estimated Amortization Expense for Future Fiscal Years Based on Capitalized Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Total	$ 356,969	$ 168,127
Software Amortization
Finite-Lived Intangible Assets [Line Items]
2020	70,056
2021	55,595
2022	37,278
2023	25,406
2024	19,983
Thereafter	26,199
Total	234,517
Other Intangible Assets Amortization
Finite-Lived Intangible Assets [Line Items]
2020	37,215
2021	36,730
2022	36,583
2023	36,270
2024	31,781
Thereafter	178,390
Total	$ 356,969

Debt - Additional Information (Details)		12 Months Ended
Debt - Additional Information (Details)	Apr. 05, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Aug. 21, 2018 USD ($)	Feb. 24, 2017
Debt Instrument [Line Items]
Long-term debt, amount outstanding		$ 1,395,060,000
Payment for debt issuance costs		(12,830,000)	$ (7,319,000)	$ (5,340,000)
Credit Agreement
Debt Instrument [Line Items]
Payment for debt issuance costs		$ (12,800,000)
Effective interest rate (percentage)		4.04%
Credit Agreement \| Maximum
Debt Instrument [Line Items]
Consolidated total net leverage ratio	5.00					4.25
Credit Agreement \| Parent Company and Domestic Subsidiaries
Debt Instrument [Line Items]
Percentage of capital stock pledged as collateral		100.00%
Credit Agreement \| Foreign Subsidiaries
Debt Instrument [Line Items]
Percentage of capital stock pledged as collateral		65.00%
Credit Agreement \| Base Rate \| Option (a) \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.25%
Credit Agreement \| Base Rate \| Option (a) \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.25%
Credit Agreement \| Federal Funds Effective Swap Rate \| Option (a)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.50%
Credit Agreement \| LIBOR \| Option (a)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.00%
Credit Agreement \| LIBOR \| Option (b) \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.25%
Credit Agreement \| LIBOR \| Option (b) \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		2.25%
5.750% Senior Notes, due August 2026
Debt Instrument [Line Items]
Stated interest rate (percentage)		5.75%
Revolving Credit Facility \| Credit Agreement
Debt Instrument [Line Items]
Line of credit, amount outstanding		$ 239,000,000.0
Unused borrowings		261,000,000.0
Debt instrument, term	5 years
Credit facility, maximum borrowing capacity	$ 500,000,000.0
Term Loans \| Credit Agreement
Debt Instrument [Line Items]
Long-term debt, amount outstanding		756,100,000
Term Loans \| Credit Agreement \| Maximum
Debt Instrument [Line Items]
Consolidated senior secured net leverage ratio	3.75					3.50
Initial Term Loan \| Credit Agreement
Debt Instrument [Line Items]
Debt instrument, face amount	$ 279,000,000.0
Debt instrument, term	5 years
Delayed Draw Term Loan \| Credit Agreement
Debt Instrument [Line Items]
Debt instrument, face amount	$ 500,000,000.0	500,000,000.0
Debt instrument, term	5 years
Senior Notes \| 5.750% Senior Notes, due August 2026
Debt Instrument [Line Items]
Long-term debt, amount outstanding		400,000,000.0
Debt instrument, face amount					$ 400,000,000.0
Payment for debt issuance costs			(7,300,000)
Issue price percentage of senior notes of the principal amount					100.00%
Stated interest rate (percentage)					5.75%
Senior Notes \| 6.375% Senior Notes, due August 2020
Debt Instrument [Line Items]
Stated interest rate (percentage)					6.375%
Line of Credit \| Overdraft Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		140,000,000.0
Amount outstanding on overdraft facility		$ 1,500,000
Line of Credit \| Overdraft Facility \| LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.875%
Other \| Multi-year License Agreement
Debt Instrument [Line Items]
Other long-term debt, multi-year license agreements entered into during the period		$ 10,400,000
Other long-term debt, amount outstanding		13,800,000	9,400,000
Other \| Multi-year License Agreement \| Other Current Liabilities
Debt Instrument [Line Items]
Other long-term debt, current		6,000,000.0	2,500,000
Other \| Multi-year License Agreement \| Other Noncurrent Liabilities
Debt Instrument [Line Items]
Other long-term debt, noncurrent		$ 7,800,000	$ 6,900,000

Debt - Schedule of Maturities on Long-Term Debt Outstanding (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Debt Disclosure [Abstract]
2020	$ 38,950
2021	38,950
2022	50,431
2023	69,906
2024	796,823
Thereafter	400,000
Total	$ 1,395,060

Debt - Summary of Total Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Aug. 21, 2018
Debt Instrument [Line Items]
Total debt	$ 1,373,155	$ 671,756
Debt issuance costs	(21,905)	(13,203)
Less current portion of term credit facility	34,148	20,767
Less current portion of debt issuance costs	(4,802)	(2,980)
Total long-term debt	$ 1,339,007	650,989
5.750% Senior Notes, due August 2026
Debt Instrument [Line Items]
Stated interest rate (percentage)	5.75%
Term Loans
Debt Instrument [Line Items]
Total debt	$ 756,060	284,959
Less current portion of term credit facility	38,950	23,747
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Total debt	239,000	0
Senior Notes \| 5.750% Senior Notes, due August 2026
Debt Instrument [Line Items]
Total debt	$ 400,000	$ 400,000
Stated interest rate (percentage)			5.75%

Corporate Restructuring and Other Organizational Changes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 5,945	$ 2,602	$ 4,127
Other Current Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,300
Operating Lease Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 1,300
General and Administrative Expense \| Leased Facilities
Restructuring Cost and Reserve [Line Items]
Lease termination fee	$ 2,400

Corporate Restructuring and Other Organizational Changes - Summary of Facility Closures Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Restructuring Reserve [Roll Forward]
Beginning balance	$ 4,127	$ 5,945
Amounts paid during the period	(1,554)	(1,732)
Foreign currency translation adjustments	29	(86)
Ending balance	$ 2,602	$ 4,127

Common Stock and Treasury Stock - Additional Information (Details) - USD ($)	12 Months Ended			22 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Feb. 28, 2018
Equity, Class of Treasury Stock [Line Items]
Repurchase program, amount approved for repurchase					$ 200,000,000.0
Repurchase program, shares repurchased (in shares)	1,228,102	2,346,427	1,653,573	45,357,495
Repurchase program, shares repurchased, value	$ 35,617,000	$ 54,527,000	$ 37,387,000	$ 583,400,000
Repurchase program, maximum remaining amont authorized for purchase	$ 141,000,000.0			$ 141,000,000.0
Stock Options
Equity, Class of Treasury Stock [Line Items]
Treasury shares issued (in shares)	854,524	1,379,704	1,204,559
Restricted Share Awards (RSAs)
Equity, Class of Treasury Stock [Line Items]
Treasury shares issued (in shares)			560,174
Restricted Stock Units (RSUs)
Equity, Class of Treasury Stock [Line Items]
Treasury shares issued (in shares)	259,634	10,000
Employee Stock Purchase Plan (ESPP)
Equity, Class of Treasury Stock [Line Items]
Treasury shares issued (in shares)	126,983	148,520	158,194

Earnings Per Share - Additional Information (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings Per Share [Abstract]
Antidilutive securities excluded from earnings (loss) per share, options to purchase shares, RSUs, and contingently issuable shares (in shares)	1,800,000	2,200,000	3,900,000
Common stock outstanding (in shares)	115,986,352	116,123,361

Earnings Per Share - Reconciliation of Average Share Amounts used to Compute Both Basic and Diluted Earnings Per Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Weighted average shares outstanding:
Basic weighted average shares outstanding (in shares)	116,175	116,057	118,059
Add: Dilutive effect of stock options, RSUs, and contingently issuable shares (in shares)	2,396	1,575	1,385
Diluted weighted average shares outstanding (in shares)	118,571	117,632	119,444

Other, Net - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Income and Expenses [Abstract]
Foreign currency transaction gains (losses)	$ 0.5	$ (3.7)	$ (2.6)

Segment Information - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)
General and Administrative Expense
Segment Reporting Information [Line Items]
BHMI settlement and related fees	$ 46.7

Segment Information - Selected Financial Data (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues									$ 1,258,294	$ 1,009,780	$ 1,024,191
Depreciation and amortization									(122,569)	(97,350)	(102,224)
Stock-based compensation expense									(36,763)	(20,360)	(13,683)
Corporate and unallocated expenses									(104,718)	(92,296)	(144,715)
Interest, net									(52,066)	(30,388)	(38,449)
Other, net	$ 3,399	$ (2,369)	$ 1,402	$ (1,912)	$ (688)	$ (1,304)	$ (1,677)	$ (55)	520	(3,724)	(2,619)
Income before income taxes	$ 90,652	$ 36,950	$ (16,806)	$ (38,586)	$ 108,744	$ 17,245	$ (10,810)	$ (23,380)	72,210	91,799	43,572
Operating Segments \| ACI On Premise
Segment Reporting Information [Line Items]
Revenues									579,334	576,755	598,590
Segment Adjusted EBITDA									321,305	323,902	347,094
Depreciation and amortization									(11,992)	(11,634)	(13,094)
Stock-based compensation expense									(7,651)	(4,348)	(2,234)
Operating Segments \| ACI On Demand
Segment Reporting Information [Line Items]
Revenues									678,960	433,025	425,601
Segment Adjusted EBITDA									66,501	12,015	(1,832)
Depreciation and amortization									(34,395)	(31,541)	(34,171)
Stock-based compensation expense									(7,995)	(4,338)	(2,230)
Corporate and other
Segment Reporting Information [Line Items]
Depreciation and amortization									(76,182)	(54,175)	(54,959)
Stock-based compensation expense									$ (21,117)	$ (11,674)	$ (9,219)

Segment Information - Selected Financial Data, Revenues and Long lived Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,258,294	$ 1,009,780	$ 1,024,191
Long lived assets
Long-lived Assets	2,285,547	1,528,930
Bill Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	510,300	275,526	271,421
Digital Channels
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	77,711	75,573	94,036
Merchant Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	102,897	95,403	83,173
Payments Intelligence
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	69,809	83,683	74,106
Real-Time Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	100,609	94,261	72,872
Retail Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	396,968	385,334	428,583
Americas - United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	781,820	500,479	541,235
Long lived assets
Long-lived Assets	1,526,046	811,435
Americas - Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	77,370	71,546	82,231
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	301,664	345,046	318,260
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	97,440	92,709	82,465
Other
Long lived assets
Long-lived Assets	759,501	717,495
Operating Segments \| ACI On Premise
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	579,334	576,755	598,590
Operating Segments \| ACI On Premise \| Bill Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0	0
Operating Segments \| ACI On Premise \| Digital Channels
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	32,980	35,231	47,973
Operating Segments \| ACI On Premise \| Merchant Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	25,693	30,447	27,155
Operating Segments \| ACI On Premise \| Payments Intelligence
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	33,790	42,353	32,478
Operating Segments \| ACI On Premise \| Real-Time Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	97,153	92,068	70,087
Operating Segments \| ACI On Premise \| Retail Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	389,718	376,656	420,897
Operating Segments \| ACI On Demand
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	678,960	433,025	425,601
Operating Segments \| ACI On Demand \| Bill Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	510,300	275,526	271,421
Operating Segments \| ACI On Demand \| Digital Channels
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	44,731	40,342	46,063
Operating Segments \| ACI On Demand \| Merchant Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	77,204	64,956	56,018
Operating Segments \| ACI On Demand \| Payments Intelligence
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	36,019	41,330	41,628
Operating Segments \| ACI On Demand \| Real-Time Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,456	2,193	2,785
Operating Segments \| ACI On Demand \| Retail Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	7,250	8,678	7,686
Operating Segments \| Americas - United States \| ACI On Premise
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	172,660	131,382	175,682
Operating Segments \| Americas - United States \| ACI On Demand
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	609,160	369,097	365,553
Operating Segments \| Americas - Other \| ACI On Premise
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	68,020	61,969	72,802
Operating Segments \| Americas - Other \| ACI On Demand
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	9,350	9,577	9,429
Operating Segments \| EMEA \| ACI On Premise
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	251,035	296,157	270,388
Operating Segments \| EMEA \| ACI On Demand
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	50,629	48,889	47,872
Operating Segments \| Asia Pacific \| ACI On Premise
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	87,619	87,247	79,718
Operating Segments \| Asia Pacific \| ACI On Demand
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 9,821	$ 5,462	$ 2,747

Stock-Based Compensation Plans - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jun. 14, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 36,763,000	$ 20,360,000	$ 13,683,000
Stock-based compensation expense, tax benefits	5,900,000	$ 3,900,000	$ 1,700,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of stock options granted (in dollars per share)		$ 7.03	$ 6.24
Total intrinsic value of stock options exercised	16,000,000.0	$ 15,800,000	$ 13,400,000
Unrecognized compensation costs	$ 200,000
Unrecognized compensation costs, weighted average recognition periods	3 months 18 days
Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of award	1 year
Stock Options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of award	10 years
LTIP Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation awards, award payout range, maximum	200.00%
Stock-based compensation expense, additional expense due to changes in expected attainment rates	$ 3,700,000
Unrecognized compensation costs	$ 500,000
Unrecognized compensation costs, weighted average recognition periods	1 month 6 days
LTIP Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	1 year
LTIP Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	3 years
Restricted Share Awards (RSAs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period	3 years
Award vesting rights, incremental vesting percentage on anniversary of grant date	33.00%
Number of shares vested	106,610
Shares withheld to pay employees' portion of minimum payroll withholding taxes	32,371
Unrecognized compensation costs	$ 300,000
Unrecognized compensation costs, weighted average recognition periods	2 months 12 days
Restricted Share Awards (RSAs) \| Board Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Total Shareholder Return Awards (TSRs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation awards, award payout range, minimum	0.00%
Stock based compensation awards, award payout range, maximum	200.00%
Performance period	3 years
Unrecognized compensation costs	$ 15,000,000.0
Unrecognized compensation costs, weighted average recognition periods	1 year 10 months 24 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period	3 years
Award vesting rights, incremental vesting percentage on anniversary of grant date	33.00%
Number of shares vested	259,634
Shares withheld to pay employees' portion of minimum payroll withholding taxes	57,802
Unrecognized compensation costs	$ 20,500,000
Unrecognized compensation costs, weighted average recognition periods	1 year 10 months 24 days
Restricted Stock Units (RSUs) \| Board Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
2017 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of common stock reserved for issuance	3,000,000
Purchase of common stock under the plan, employee annual base compensation, amount	$ 25,000
Purchase of common stock under the plan, employee annual base compensation, percentage	10.00%
Price of common stock purchased under ESPP, percentage	85.00%
Discount offered pursuant to ESPP, percentage	15.00%
Stock-based compensation expense	$ 600,000	$ 500,000	$ 500,000
2016 Equity and Performance Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance	8,000,000
Maximum aggregate number of shares allowed per participant during any calendar year	3,000,000
Maximum aggregate value allowed per participant on the date of grant during any calendar year	$ 9,000,000
2005 Equity and Performance Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance				23,250,000

Stock-Based Compensation Plans - Summary of Stock Option Activity (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) $ / shares shares
Number of Shares
Outstanding, beginning balance (in shares) \| shares	4,864,836
Exercised (in shares) \| shares	(854,524)
Forfeited (in shares) \| shares	(3,496)
Outstanding, ending balance (in shares) \| shares	4,006,816
Exercisable, ending balance (in shares) \| shares	3,462,664
Weighted Average Exercise Price
Beginning balance (in dollars per share) \| $ / shares	$ 17.76
Exercised (in dollars per share) \| $ / shares	15.78
Forfeited (in dollars per share) \| $ / shares	17.89
Ending balance (in dollars per share) \| $ / shares	18.18
Weighted average exercise price, exercisable, ending balance (in dollars per share) \| $ / shares	$ 17.86
Weighted Average Remaining Contractual Term (Years)
Weighted average remaining contractual term, outstanding, end of period (in years)	3 years 8 months 15 days
Weighted average remaining contractual term, exercisable, end of period (in years)	3 years 8 months 12 days
Aggregate Intrinsic Value of In-the-Money Options
Aggregate intrinsic value of in-the-money options, outstanding, end of period \| $	$ 78,949,941
Aggregate intrinsic value of in-the-money options, exercisable, end of period \| $	$ 69,349,255

Stock-Based Compensation Plans - Summary of Grant Date Fair Value Weighted Average Assumptions - Options (Details) - Black-Scholes Option-Pricing Model - Stock Options	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (years)	5 years 7 months 6 days	5 years 7 months 6 days
Risk-free interest rate	2.70%	1.90%
Expected volatility	26.40%	29.40%
Expected dividend yield	0.00%	0.00%

Stock-Based Compensation Plans - Summary of Nonvested LTIP Performance Shares (Details) - LTIP Performance Shares	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Number of Shares at Expected Attainment
Nonvested, beginning balance (in shares) \| shares	540,697
Forfeited (in shares) \| shares	(56,567)
Change in expected attainment (in shares) \| shares	185,339
Nonvested, ending balance (in shares) \| shares	669,469
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in dollars per share) \| $ / shares	$ 19.83
Forfeited (in dollars per share) \| $ / shares	18.80
Change in expected attainment (in dollars per share) \| $ / shares	20.09
Nonvested, ending balance (in dollars per share) \| $ / shares	$ 20.12

Stock-Based Compensation Plans - Summary of Nonvested RSAs (Details) - Restricted Share Awards (RSAs)	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Number of Shares
Nonvested, beginning balance (in shares) \| shares	213,337
Vested (in shares) \| shares	(106,610)
Forfeited (in shares) \| shares	(13,885)
Nonvested, ending balance (in shares) \| shares	92,842
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in dollars per share) \| $ / shares	$ 20.21
Vested (in dollars per share) \| $ / shares	20.17
Forfeited (in dollars per share) \| $ / shares	20.64
Nonvested, ending balance (in dollars per share) \| $ / shares	$ 20.13

Stock-Based Compensation Plans - Summary of Grant Date Fair Value Weighted Average Assumptions - TSRs (Details) - Total Shareholder Return Awards (TSRs) - Monte Carlo Simulation Model	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (years)	2 years 9 months 18 days	2 years 10 months 24 days	2 years 10 months 24 days
Interest rate	2.50%	2.40%	1.50%
Volatility	29.30%	28.00%	26.50%
Expected dividend yield	0.00%	0.00%	0.00%

Stock-Based Compensation Plans - Summary of Nonvested TSRs (Details) - Total Shareholder Return Awards (TSRs)	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Number of Shares at Expected Attainment
Nonvested, beginning balance (in shares) \| shares	718,931
Granted (in shares) \| shares	436,674
Forfeited (in shares) \| shares	(93,314)
Nonvested, ending balance (in shares) \| shares	1,062,291
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in dollars per share) \| $ / shares	$ 29.25
Granted (in dollars per share) \| $ / shares	47.90
Forfeited (in dollars per share) \| $ / shares	35.37
Nonvested, ending balance (in dollars per share) \| $ / shares	$ 35.77

Stock-Based Compensation Plans - Summary of Nonvested RSUs (Details) - Restricted Stock Units (RSUs)	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Number of Shares
Nonvested, beginning balance (in shares) \| shares	651,045
Granted (in shares) \| shares	742,579
Vested (in shares) \| shares	(259,634)
Forfeited (in shares) \| shares	(124,586)
Nonvested, ending balance (in shares) \| shares	1,009,404
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in dollars per share) \| $ / shares	$ 23.82
Granted (in dollars per share) \| $ / shares	33.28
Vested (in dollars per share) \| $ / shares	24.16
Forfeited (in dollars per share) \| $ / shares	29.79
Nonvested, ending balance (in dollars per share) \| $ / shares	$ 29.96

Employee Benefit Plans - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ACI 401(k) Plan
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, maximum annual contribution per employee, percentage	75.00%
Defined contribution plan, employer matching contribution, percentage of match	100.00%
Defined contribution plan, employer matching contribtuion, percent of eligible participant contributions	4.00%
Defined contribution plan, employer matching contribution, maximum amount per employee	$ 5,000
Defined contribution plan, cost	6,400,000	$ 6,400,000	$ 5,300,000
ACI 401(k) Plan \| Employees under Age 50
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, maximum annual contribution per employee, amount	19,000
ACI 401(k) Plan \| Employees Aged 50 or Older
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, maximum annual contribution per employee, amount	$ 25,000
ACI 401(k) Plan \| Second Eligible Participant Contributions
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, employer matching contribution, percentage of match	50.00%
ACI 401(k) Plan \| Second Eligible Participant Contributions \| Maximum
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, employer matching contribtuion, percent of eligible participant contributions	4.00%
ACI Worldwide EMEA Group Personal Pension Scheme
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, cost	$ 1,500,000	$ 1,600,000	$ 1,600,000
ACI Worldwide EMEA Group Personal Pension Scheme \| Employed at December 1, 2000
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, employer discretionary contribution, percentage of eligible compensation	8.50%
ACI Worldwide EMEA Group Personal Pension Scheme \| Employees Aged Over 55 Years on December 1, 2000 \| Maximum
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, employer discretionary contribution, percentage of eligible compensation	15.50%
ACI Worldwide EMEA Group Personal Pension Scheme \| Employed Subsequent to December 1, 2000 \| Minimum
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, employer discretionary contribution, percentage of eligible compensation	6.00%
ACI Worldwide EMEA Group Personal Pension Scheme \| Employed Subsequent to December 1, 2000 \| Maximum
Schedule Of Defined Contribution Plans Disclosures [Line Items]
Defined contribution plan, employer discretionary contribution, percentage of eligible compensation	10.00%

Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Tax Act:
U.S. federal corporate income tax rate	21.00%	21.00%	35.00%
Tax Act, provisional tax charge			$ 15,000,000.0
Tax Act, provisional tax charge, subsequent adjustment		$ 4,900,000
Tax Act, one-time transition tax on certain unremitted foreign earnings			20,900,000
Tax Act, one-time transition tax on certain unremitted foreign earnings, subsequent adjustment		8,100,000
Valuation Allowance:
Valuation allowance, deferred tax asset, increase (decrease) in amount during the period	$ (12,800,000)
Income Tax Uncertainties:
Unrecognized tax benefit	29,000,000	28,406,000	27,237,000	$ 24,278,000
Net unrecognized tax benefits that, if recognized, would favorably impact the effective income tax rate	28,200,000	27,500,000
Increase (decrease) in unrecognized tax benefits due to the settlement of various audits and the expiration of statutes of limitations	(11,700,000)
Accrued interest and penalties related to income tax liabilities	1,200,000	1,200,000
Aggregate amount of interest and penalties expense (benefit) recorded in the statement of operations	200,000	0.0	$ (800,000)
Other Noncurrent Liabilities
Income Tax Uncertainties:
Unrecognized tax benefit	22,400,000	22,600,000
Foreign
Valuation Allowance:
Valuation allowance, deferred tax asset, increase (decrease) in amount during the period	(15,500,000)	$ 15,500,000
Operating Loss Carryforwards:
Operating loss carryforwards	30,400,000
Operating loss carryforwards, valuation allowance	700,000
Operating loss carryforwards, not subject to expiration	$ 28,100,000
Operating loss carryforwards, expiration period	17 years
Tax Credit Carryforward:
Tax credit carryfoward	$ 40,700,000
Tax credit carryforward, valuation allowance	1,200,000
Domestic Federal
Operating Loss Carryforwards:
Operating loss carryforwards	65,900,000
Domestic Federal \| General Business Tax Credit Carryforward
Tax Credit Carryforward:
Tax credit carryfoward	15,700,000
State
Operating Loss Carryforwards:
Operating loss carryforwards, deferred tax asset, subject to expiration	1,400,000
Operating loss carryforwards, valuation allowance	1,200,000
State \| General Business Tax Credit Carryforward
Tax Credit Carryforward:
Tax credit carryfoward	800,000
Other Foreign Jurisdiction
Tax Credit Carryforward:
Tax credit carryfoward	1,900,000
Tax credit carryforward, valuation allowance	1,200,000
Tax credit carryforward, not subject to expiration	$ 1,300,000
Tax credit carryforward, expiration period	7 years

Income Taxes - Components of Income Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
United States									$ (16,317)	$ 16,312	$ (42,863)
Foreign									88,527	75,487	86,435
Income before income taxes	$ 90,652	$ 36,950	$ (16,806)	$ (38,586)	$ 108,744	$ 17,245	$ (10,810)	$ (23,380)	$ 72,210	$ 91,799	$ 43,572

Income Taxes - Summary of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Federal
Current									$ 3,738	$ 6,545	$ 2,586
Deferred									(25,150)	(6,587)	19,212
Total									(21,412)	(42)	21,798
State
Current									590	4,441	(1,857)
Deferred									342	(2,649)	(1,324)
Total									932	1,792	(3,181)
Foreign
Current									22,960	17,626	16,048
Deferred									2,668	3,502	3,772
Total									25,628	21,128	19,820
Total	$ 35,166	$ 5,136	$ (22,531)	$ (12,623)	$ 21,054	$ 2,012	$ 3,764	$ (3,952)	$ 5,148	$ 22,878	$ 38,437

Income Taxes - Summary of Differences Between Income Tax Expense Computed at Statutory Federal Income Tax Rate and Per Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Tax expense at federal rate of 21% (35% pre-2018)									$ 15,164	$ 19,278	$ 15,250
State income taxes, net of federal benefit									1,227	5,246	(2,238)
Change in valuation allowance									(12,760)	12,657	(1,884)
Foreign tax rate differential									(2,535)	(4,796)	(15,622)
Unrecognized tax benefit increase									898	1,262	3,007
Tax effect of foreign operations									6,698	8,546	5,532
Tax benefit of research & development									(2,506)	(2,557)	(1,904)
Transition tax									0	(8,112)	20,867
Revaluation of deferred tax balances									0	(4,937)	14,953
Performance-based compensation									(560)	(4,541)	2,081
Domestic production activities									0	0	(3,793)
Other									(478)	832	2,188
Total	$ 35,166	$ 5,136	$ (22,531)	$ (12,623)	$ 21,054	$ 2,012	$ 3,764	$ (3,952)	$ 5,148	$ 22,878	$ 38,437

Income Taxes - Summary of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred income tax assets:
Net operating loss carryforwards	$ 23,030	$ 25,745
Tax credits	52,902	43,838
Compensation	18,791	15,934
Deferred revenue	25,599	27,587
Research and development expense deferral	0	12,631
Other	4,065	5,393
Gross deferred income tax assets	124,387	131,128
Less: valuation allowance	(7,653)	(20,415)
Net deferred income tax assets	116,734	110,713
Deferred income tax liabilities:
Depreciation and amortization	(52,978)	(60,872)
Deferred revenue	(44,198)	(54,508)
Total deferred income tax liabilities	(97,176)	(115,380)
Net deferred income taxes, deferred income tax asset	19,558
Net deferred income taxes, deferred income tax liability		(4,667)
Deferred income taxes / liabilities included in the balance sheet are:
Deferred income tax asset – noncurrent	51,611	27,048
Deferred income tax liability – noncurrent	(32,053)	(31,715)
Net deferred income taxes, deferred income tax asset	$ 19,558
Net deferred income taxes, deferred income tax liability		$ (4,667)

Income Taxes - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits
Balance of unrecognized tax benefits at beginning of year	$ 28,406	$ 27,237	$ 24,278
Increases for tax positions of prior years	2,784	315	2,478
Decreases for tax positions of prior years	(96)	(61)	(114)
Increases for tax positions established for the current period	2,542	1,185	1,677
Decreases for settlements with taxing authorities	(220)	0	(154)
Reductions resulting from lapse of applicable statute of limitation	(4,462)	(115)	(1,155)
Adjustment resulting from foreign currency translation	46	(155)	227
Balance of unrecognized tax benefits at end of year	$ 29,000	$ 28,406	$ 27,237

Leases - Additional Information (Details) $ in Millions	12 Months Ended
Leases - Additional Information (Details) $ in Millions	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Option to terminate, term	1 year
Operating leases not yet commenced, office facilities, amount	$ 2.1
Minimum
Lessee, Lease, Description [Line Items]
Operating leases not yet commenced, term of contract (in years)	1 year
Maximum
Lessee, Lease, Description [Line Items]
Renewal option, term	25 years
Operating leases not yet commenced, term of contract (in years)	5 years

Leases - Summary of Components of Lease Cost (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 18,486
Variable lease cost	3,756
Sublease income	(528)
Total lease cost	$ 21,714

Leases - Summary of Supplemental Cash Flow Information Related to Leases (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 19,578
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	$ 10,478

Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets:
Operating lease right-of-use assets	$ 57,382	$ 0
Liabilities:
Other current liabilities	15,049	0
Operating lease liabilities	46,766	$ 0
Total operating lease liabilities	$ 61,815
Weighted average remaining operating lease term (years)	6 years 6 months 29 days
Weighted average operating lease discount rate	4.00%

Leases - Schedule of Maturities on Lease Liabilities (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Leases [Abstract]
2020	$ 17,180
2021	13,050
2022	10,066
2023	7,787
2024	4,951
Thereafter	17,250
Total lease payments	70,284
Less: imputed interest	8,469
Total lease liability	$ 61,815

Leases - Schedule of Future Payments Under Operating Lease Agreements, ASC 840 (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Operating Leases
2019	$ 16,925
2020	14,212
2021	10,538
2022	8,178
2023	6,529
Thereafter	21,196
Total minimum lease payments	$ 77,578

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions			12 Months Ended
	Sep. 23, 2015	Mar. 06, 2013	Dec. 31, 2017
General and Administrative Expense
Loss Contingencies [Line Items]
Litigation settlement, amount awarded to other party			$ 46.7
BHMI
Loss Contingencies [Line Items]
Loss contingency, damages sought, value	$ 43.8
Loss contingency, name of plaintiff	Baldwin Hackett & Meeks, Inc.
Loss contingency, damages		$ 43.8
Loss contingency, attorneys fees and costs		$ 2.7
Litigation settlement, amount awarded to other party			48.1
BHMI \| General and Administrative Expense
Loss Contingencies [Line Items]
Litigation settlement, amount awarded to other party			46.7
BHMI \| Interest Expense [Member]
Loss Contingencies [Line Items]
Litigation settlement, amount awarded to other party			$ 1.4

Quarterly Financial Data (Unaudited) - Summary of Quarterly Financial Data (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands

3 Months Ended

12 Months Ended

Dec. 31, 2019

Sep. 30, 2019

Jun. 30, 2019

Mar. 31, 2019

Dec. 31, 2018

Sep. 30, 2018

Jun. 30, 2018

Mar. 31, 2018

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2017

Revenues:

Total revenues

$ 399,920

$ 354,901

$ 297,618

$ 205,855

$ 319,950

$ 245,525

$ 234,995

$ 209,310

$ 1,258,294

$ 1,009,780

$ 1,024,191

Operating expenses:

Cost of revenue

173,104

174,168

155,240

114,941

104,281

102,473

116,261

107,336

617,453

^[1]

430,351

^[1]

452,286

^[1]

Research and development

34,601

36,543

39,235

36,194

32,969

36,008

37,862

36,791

146,573

143,630

136,921

Selling and marketing

30,875

30,417

32,962

29,430

24,576

28,252

33,160

31,893

123,684

117,881

107,885

General and administrative

27,174

27,286

49,319

31,517

20,399

29,537

28,837

28,649

135,296

107,422

153,032

Depreciation and amortization

31,753

31,169

26,744

21,866

21,311

20,896

21,033

21,345

111,532

84,585

89,427

Total operating expenses

297,507

299,583

303,500

233,948

203,536

217,166

237,153

226,014

1,134,538

883,869

939,551

Operating income

102,413

55,318

(5,882)

(28,093)

116,414

28,359

(2,158)

(16,704)

123,756

125,911

84,640

Other income (expense):

Interest expense

(18,109)

(18,987)

(15,323)

(11,614)

(9,875)

(12,573)

(9,717)

(9,365)

(64,033)

(41,530)

(39,013)

Interest income

2,949

2,988

2,997

3,033

2,893

2,763

2,742

2,744

11,967

11,142

564

Other, net

3,399

(2,369)

1,402

(1,912)

(688)

(1,304)

(1,677)

(55)

520

(3,724)

(2,619)

Total other income (expense)

(11,761)

(18,368)

(10,924)

(10,493)

(7,670)

(11,114)

(8,652)

(6,676)

(51,546)

(34,112)

(41,068)

Income before income taxes

90,652

36,950

(16,806)

(38,586)

108,744

17,245

(10,810)

(23,380)

72,210

91,799

43,572

Income tax expense (benefit)

35,166

5,136

(22,531)

(12,623)

21,054

2,012

3,764

(3,952)

5,148

22,878

38,437

Net income

$ 55,486

$ 31,814

$ 5,725

$ (25,963)

$ 87,690

$ 15,233

$ (14,574)

$ (19,428)

$ 67,062

$ 68,921

$ 5,135

Earnings (loss) per share

Basic (in dollars per share)

$ 0.48

$ 0.27

$ 0.05

$ (0.22)

$ 0.76

$ 0.13

$ (0.13)

$ (0.17)

$ 0.58

$ 0.59

$ 0.04

Diluted (in dollars per share)

$ 0.47

$ 0.27

$ 0.05

$ (0.22)

$ 0.74

$ 0.13

$ (0.13)

$ (0.17)

$ 0.57

$ 0.59

$ 0.04

Software as a service and platform as a service

Revenues:

Total revenues

$ 203,661

$ 192,952

$ 172,499

$ 108,557

$ 110,626

$ 104,519

$ 113,600

$ 104,280

$ 677,669

$ 433,025

$ 425,572

License

Revenues:

Total revenues

122,584

92,058

52,541

21,078

137,991

68,964

45,555

28,046

288,261

280,556

293,124

Maintenance

Revenues:

Total revenues

53,738

52,638

51,922

55,111

53,065

54,373

55,048

56,659

213,409

219,145

222,071

Services

Revenues:

Total revenues

$ 19,937

$ 17,253

$ 20,656

$ 21,109

$ 18,268

$ 17,669

$ 20,792

$ 20,325

$ 78,955

$ 77,054

$ 83,424

[1]	The cost of revenue excludes charges for depreciation but includes amortization of purchased and developed software for resale.