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Document and Entity Information - USD ($)	3 Months Ended
Document and Entity Information - USD ($)	Mar. 31, 2011	Apr. 27, 2011	Jun. 30, 2010
Document and Entity Information [Abstract]
Entity Registrant Name	ACI WORLDWIDE, INC.
Entity Central Index Key	0000935036
Document Type	10-Q
Document Period End Date	Mar. 31, 2011
Amendment Flag	false
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 640,293,418
Entity Common Stock, Shares Outstanding		33,416,569

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 168,882	$ 171,310
Billed receivables, net of allowances of $5,533 and $5,738, respectively	71,260	77,773
Accrued receivables	8,043	9,578
Deferred income taxes, net	10,087	12,317
Prepaid expenses	15,587	13,369
Other current assets	11,741	10,462
Total current assets	285,600	294,809
Property and equipment, net	22,112	18,539
Software, net	26,271	25,366
Goodwill	218,403	203,935
Other intangible assets, net	23,428	20,448
Deferred income taxes, net	30,932	28,143
Other noncurrent assets	8,707	10,289
TOTAL ASSETS	615,453	601,529
Current liabilities
Accounts payable	14,506	15,263
Accrued employee compensation	16,626	26,174
Deferred revenue	141,433	121,936
Income taxes payable	2,482	6,181
Alliance agreement liability	1,600	1,917
Note payable under credit facility	75,000	75,000
Accrued and other current liabilities	21,730	24,293
Total current liabilities	273,377	270,764
Deferred revenue	33,239	31,045
Alliance agreement noncurrent liability	20,667	20,667
Other noncurrent liabilities	22,512	23,430
Total liabilities	$ 349,795	$ 345,906
Commitments and contingencies (Note 11)
Stockholders' equity
Preferred stock, $0.01 par value; 5,000,000 shares authorized; no shares issued and outstanding at March 31, 2011 and December 31, 2010	$ 0	$ 0
Common stock, $0.005 par value; 70,000,000 shares authorized; 40,821,516 shares issued at March 31, 2011 and December 31, 2010	204	204
Common stock warrants	24,003	24,003
Treasury stock, at cost, 7,399,387 and 7,548,752 shares outstanding at March 31, 2011 and December 31, 2010, respectively	(168,343)	(171,676)
Additional paid-in capital	314,576	312,947
Retained earnings	106,911	105,289
Accumulated other comprehensive loss	(11,693)	(15,144)
Total stockholders' equity	265,658	255,623
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 615,453	$ 601,529

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2011	Dec. 31, 2010
Current assets
Allowances for billed receivables	$ 5,533	$ 5,738
Stockholders' equity
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.005	$ 0.005
Common stock, shares authorized	70,000,000	70,000,000
Common stock, shares issued	40,821,516	40,821,516
Treasury stock, shares	7,399,387	7,548,752

Condensed Consolidated Statements of Operations (Unaudited) - USD ($)
shares in Thousands, $ in Thousands

3 Months Ended

Mar. 31, 2011

Mar. 31, 2010

Revenues:

Software license fees

$ 43,724

$ 29,317

Maintenance fees

35,070

33,422

Services

15,371

14,618

Software hosting fees

10,378

10,386

Total revenues

104,543

87,743

Expenses:

Cost of software license fees

^[1]

3,442

3,074

Cost of maintenance, services, and hosting fees

^[1]

29,607

27,892

Research and development

23,130

18,396

Selling and marketing

19,294

16,845

General and administrative

16,362

17,462

Depreciation and amortization

5,210

4,979

Total expenses

97,045

88,648

Operating income (loss)

7,498

(905)

Other income (expense):

Interest income

238

124

Interest expense

(643)

(523)

Other, net

(302)

(214)

Total other income (expense)

(707)

(613)

Income (loss) before income taxes

6,791

(1,518)

Income tax expense

5,169

571

Net income (loss)

$ 1,622

$ (2,089)

Weighted average shares outstanding

Basic

33,318

33,725

Diluted

33,983

33,725

Income (loss) per share

Basic

$ 0.05

$ (0.06)

Diluted

$ 0.05

$ (0.06)

[1]	The cost of software license fees excludes charges for depreciation but includes amortization of purchased and developed software for resale. The cost of maintenance, services, and hosting fees excludes charges for depreciation.

Condensed Consolidated Statement of Stockholders' Equity and Comprehensive Income (Loss) (Unaudited) $ in Thousands	3 Months Ended
	Mar. 31, 2011 USD ($)
Statement [Line Items]
Beginning Balance	$ 255,623
Comprehensive income information:
Net income	1,622
Other comprehensive income:
Foreign currency translation adjustments	3,451
Comprehensive income	5,073
Stock-based compensation	2,369
Shares issued and forfeited, net, under stock plans including income tax benefits	2,939
Repurchase of restricted stock for tax withholdings	(346)
Ending Balance	265,658
Common Stock
Statement [Line Items]
Beginning Balance	204
Other comprehensive income:
Ending Balance	204
Common Stock Warrants
Statement [Line Items]
Beginning Balance	24,003
Other comprehensive income:
Ending Balance	24,003
Treasury Stock
Statement [Line Items]
Beginning Balance	(171,676)
Other comprehensive income:
Shares issued and forfeited, net, under stock plans including income tax benefits	3,679
Repurchase of restricted stock for tax withholdings	(346)
Ending Balance	(168,343)
Additional Paid-in Capital
Statement [Line Items]
Beginning Balance	312,947
Other comprehensive income:
Stock-based compensation	2,369
Shares issued and forfeited, net, under stock plans including income tax benefits	(740)
Ending Balance	314,576
Retained Earnings
Statement [Line Items]
Beginning Balance	105,289
Comprehensive income information:
Net income	1,622
Other comprehensive income:
Ending Balance	106,911
Accumulated Other Comprehensive Income (Loss)
Statement [Line Items]
Beginning Balance	(15,144)
Other comprehensive income:
Foreign currency translation adjustments	3,451
Ending Balance	$ (11,693)

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Cash flows from operating activities:
Net income (loss)	$ 1,622	$ (2,089)
Adjustments to reconcile net income (loss) to net cash flows from operating activities
Depreciation	1,683	1,617
Amortization	5,136	4,874
Tax expense of intellectual property shift	550	549
Deferred income taxes	2,318	4,589
Stock-based compensation expense	2,369	1,806
Excess tax benefit of stock options exercised	(895)	146
Other	72	262
Changes in operating assets and liabilities, net of impact of acquisitions:
Billed and accrued receivables, net	9,422	28,821
Other current and noncurrent assets	(2,420)	(3,053)
Accounts payable	(2,921)	(3,315)
Accrued employee compensation	(10,564)	(8,920)
Accrued liabilities	(2,995)	(4,432)
Current income taxes	(2,746)	(14,837)
Deferred revenue	17,894	8,058
Other current and noncurrent liabilities	(582)	(498)
Net cash flows from operating activities	17,943	13,578
Cash flows from investing activities:
Purchases of property and equipment	(5,188)	(1,179)
Purchases of software and distribution rights	(1,844)	(2,763)
Alliance technical enablement expenditures	(256)	(1,707)
Acquisition of business, net of cash acquired	(16,729)
Net cash flows from investing activities	(24,017)	(5,649)
Cash flows from financing activities:
Proceeds from issuance of common stock	300	257
Proceeds from exercises of stock options	1,782	1,356
Excess tax benefit of stock options exercised	895	73
Repurchases of common stock		(2,998)
Repurchase of restricted stock for tax withholdings	(346)	(255)
Payments on debt and capital leases	(524)	(325)
Net cash flows from financing activities	2,107	(1,892)
Effect of exchange rate fluctuations on cash	1,539	(1,408)
Net increase (decrease) in cash and cash equivalents	(2,428)	4,629
Cash and cash equivalents, beginning of period	171,310	125,917
Cash and cash equivalents, end of period	168,882	130,546
Supplemental cash flow information
Income taxes paid, net	7,845	13,460
Interest paid	$ 562	$ 442

Condensed Consolidated Financial Statements

3 Months Ended

Mar. 31, 2011

Condensed Consolidated Financial Statements [Abstract]

Condensed Consolidated Financial Statements

1. Condensed Consolidated Financial Statements

The unaudited condensed consolidated financial statements include the accounts of ACI Worldwide, Inc. and its wholly-owned subsidiaries (collectively, the “Company”). All intercompany balances and transactions have been eliminated. The condensed consolidated financial statements as of March 31, 2011, and for the three months ended March 31, 2011 and 2010, are unaudited and reflect all adjustments of a normal recurring nature, except as otherwise disclosed herein, which are, in the opinion of management, necessary for a fair presentation, in all material respects, of the financial position and operating results for the interim periods. The condensed consolidated balance sheet as of December 31, 2010 is derived from the audited financial statements.

The condensed consolidated financial statements contained herein should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s annual report on Form 10-K for the fiscal year ended December 31, 2010, filed on February 18, 2011. Results for the three months ended March 31, 2011, are not necessarily indicative of results that may be attained in the future.

The preparation of condensed 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 condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Comprehensive Income (loss)

The Company’s comprehensive income for the three months ended March 31, 2011 was $5.1 million compared to a $5.8 million loss for the same period in 2010. The two components of comprehensive income (loss) are net income (loss) and foreign currency translation adjustments. The foreign currency translation adjustments for the three months ended March 31, 2011 and March 31, 2010 were $3.5 million and $(3.7) million, respectively. Accumulated other comprehensive loss included in the Company’s condensed consolidated balance sheet represents the accumulated foreign currency translation adjustment. Since the undistributed earnings of the Company’s foreign subsidiaries are considered to be indefinitely reinvested, the components of accumulated other comprehensive loss have not been tax effected.

Note Payable Under Credit Facility

On September 29, 2006, the Company entered into a five year revolving credit facility with a syndicate of financial institutions, as lenders, providing for revolving loans and letters of credit in an aggregate principal amount not to exceed $150 million. The facility has a maturity date of September 29, 2011, at which time any principal amounts outstanding are due. Obligations under the facility are unsecured and uncollateralized, but are jointly and severally guaranteed by certain domestic subsidiaries of the Company. As of March 31, 2011, the revolving credit facility is classified as current due to the maturity date being within 12 months. The Company is currently in discussions with various lenders, including its current lenders, for a new credit facility and anticipates closing on the new facility prior to the maturation of the current facility.

Revenue

Update to Revenue Accounting Policies. With the exception of the adoption of the new accounting pronouncements related to revenue recognition, which are discussed below, there have been no material changes to the Company’s significant accounting policies, as compared to the significant accounting policies described in its annual report on Form 10-K for the fiscal year ended December 31, 2010.

Revenue Recognition for Arrangements with Multiple Deliverables.

Effective January 1, 2011 the Company adopted on a prospective basis for all new or materially modified arrangements entered into on or after that date, the amended accounting guidance for multiple-deliverable revenue arrangements and the amended guidance related to the scope of existing software revenue recognition guidance. The adoption of this guidance did not have a material impact on the Company’s condensed consolidated financial statements for the three months ended March 31, 2011, nor does the Company expect it to have a material impact on its future financial statements.

A multiple-deliverable arrangement is separated into more than one unit of accounting if the delivered item(s) has value to the customer on a stand-alone basis; if the arrangement includes a general right of return relative to the delivered item(s); and if delivery or performance of the undelivered item(s) is considered probable and substantially in the control of the Company. If these criteria are not met, the arrangement is accounted for as a single unit of accounting which would result in revenue being recognized ratably over the contract term or being deferred until the earlier of when such criteria are met or when the last undelivered element is delivered. If these criteria are met for each, the arrangement consideration is allocated to the separate units of accounting based on each unit’s relative selling price. The selling price for each element is based upon the following selling price hierarchy: vendor-specific objective evidence (“VSOE”) if available, third party evidence (“TPE”) if VSOE is not available, or estimated selling price if neither VSOE nor TPE is available.

The Company enters into hosting-related arrangements that may consist of multiple service deliverables including initial implementation and setup services; on-going support services; and other services. The Company’s hosted products operate in a highly regulated and controlled environment which requires a highly specialized and unique set of initial implementation and setup services prior to the commencement of hosting-related services. Due to the essential and specialized nature of the implementation and setup services, these services do not qualify as separate units of accounting separate from the hosting service as the delivered services do not have value to the client on a stand-alone basis. The on-going support and other services are considered as separate units of accounting. The total arrangement consideration is allocated to each of the separate units of accounting based on their relative selling price and revenue is recognized over their respective service periods. As the support and other services periods are the same as the hosting service period, the recognition pattern is similar to what was experienced prior to adopting the amended accounting guidance for multiple-deliverable revenue arrangements.

Vendor-Specific Objective Evidence

Certain of the Company’s software license arrangements include post contract customer support (maintenance or “PCS”) terms that fail to achieve VSOE of fair value due to non-substantive renewal periods, or contain a range of possible non-substantive PCS renewal amounts. As a result of the maturation of certain retail payment engine products, including BASE24, a higher number of software license arrangements fail to achieve VSOE of fair value for PCS due to non-substantive renewal periods, or contain a range of possible PCS renewal amounts. For these arrangements, VSOE of fair value of PCS does not exist and revenues for the software license, PCS and services, if applicable, are considered to be one accounting unit and are therefore recognized ratably over the longer of the contractual service term or the initial PCS term once the delivery of both services has commenced. The Company typically classifies revenues associated with these arrangements in accordance with the contractually specified amounts, which approximate fair value assigned to the various elements, including software license fees, maintenance fees and services, if applicable.

This allocation methodology has been applied to the following amounts included in revenues in the consolidated statements of operations from arrangements for which VSOE of fair value does not exist for each undelivered element (in thousands):


	Three Months Ended
	March 31,
	2011		2010
Software license fees	$	22,918	$	5,165
Maintenance fees		5,265		1,143
Services		123		1,380

Total	$	28,306	$	7,688

Stock-Based Compensation Plans

3 Months Ended

Mar. 31, 2011

Stock-Based Compensation Plans [Abstract]

Stock-Based Compensation Plans

3. Stock-Based Compensation Plans

Employee Stock Purchase Plan

Under the Company’s 1999 Employee Stock Purchase Plan, as amended (the “ESPP”), a total of 1,500,000 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. Shares issued under the ESPP during the three months ended March 31, 2011 and 2010 totaled 11,373 and 16,709, respectively.

Stock-Based Payments

A summary of stock options issued pursuant to the Company’s stock incentive plans is as follows:


						Weighted-
						Average
				Weighted-		Remaining		Aggregate
				Average		Contractual		Intrinsic Value of
	Number of			Exercise		Term		In-the-Money
	Shares			Price		(Years)		Options
Outstanding as of December 31, 2010		3,510,538		$	21.55
Exercised		(150,353	)		11.85
Forfeited		(2,134	)		16.52

Outstanding as of March 31, 2011		3,358,051		$	21.98		5.49	$	37,154,335


Exercisable as of March 31, 2011		2,168,534		$	21.99		4.72	$	24,225,702

As of March 31, 2011, the Company expects that 94.8% of the options will vest over the vesting period.

No options were granted during the three months ended March 31, 2011. The weighted-average grant date fair value of stock options granted during the three months ended March 31, 2010 was $10.77. The Company issued treasury shares for the exercise of stock options during the three months ended March 31, 2011 and 2010. The total intrinsic value of stock options exercised during the three months ended March 31, 2011 and 2010 was $2.8 million and $0.6 million, respectively.

The fair value of options granted during the three months ended March 31, 2010 was estimated on the date of grant using the Black-Scholes option-pricing model, a pricing model acceptable under U.S. GAAP, with the following weighted-average assumptions:


	Three Months Ended
	March 31, 2010

Expected life (years)		6.00
Interest rate		3.1	%
Volatility		51.4	%
Dividend yield		—

Expected volatilities are based on the Company’s historical common stock volatility derived from historical stock price data for historical periods commensurate with the options’ expected life. The expected life of options granted represents the period of time that options granted are expected to be outstanding. The Company used the simplified method for determining the expected life. The simplified method was used as the historical data did not provide a reasonable basis upon which to estimate the expected term due to the extended period during which individuals were unable to exercise options while the Company was not current with its filings with the Securities and Exchange Commission (“SEC”). The risk-free interest rate is based on the implied yield currently available on United States Treasury zero coupon issues with a term equal to the expected term 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.

A summary of nonvested long-term incentive program performance share awards (“LTIP performance shares”) outstanding as of March 31, 2011 and changes during the period are as follows:


	Number of			Weighted-
	Shares at			Average
	Expected			Grant Date
Nonvested LTIP Performance Shares	Attainment			Fair Value
Nonvested as of December 31, 2010		499,035		$	20.57
Forfeited		(3,840	)		16.52

Nonvested as of March 31, 2011		495,195		$	20.61

A summary of nonvested restricted share awards (“RSAs”) as of March 31, 2011 and changes during the period are as follows:


	Number of
	Restricted			Weighted-Average Grant
Nonvested Restricted Share Awards	Share Awards			Date Fair Value
Nonvested as of December 31, 2010		192,298		$	18.42
Vested		(40,834	)		16.54

Nonvested as of March 31, 2011		151,464		$	18.93

During the three months ended March 31, 2011, 40,834 of the RSAs vested. The Company withheld 12,361 of those shares to pay the employees’ portion of the minimum payroll withholding taxes.

As of March 31, 2011, there were unrecognized compensation costs of $5.7 million related to nonvested stock options, $2.1 million related to the nonvested RSAs, and $7.0 million related to the LTIP performance shares, which the Company expects to recognize over weighted-average periods of 2.1 years, 1.6 years and 2.3 years, respectively.

The Company recorded stock-based compensation expenses for the three months ended March 31, 2011 and 2010 related to stock options, LTIP performance shares, RSAs, and the ESPP of $2.4 million and $1.8 million, respectively, with corresponding tax benefits of $0.9 million and $0.7 million, respectively. Tax benefits in excess of the option’s grant date fair value are classified as financing cash flows. No stock-based compensation costs were capitalized during the three months ended March 31, 2011 and 2010. Estimated forfeiture rates, stratified by employee classification, have been included as part of the Company’s calculations of compensation costs. The Company recognizes compensation costs for stock option awards, which vest with the passage of time with only service conditions on a straight-line basis over the requisite service period.

Cash received from option exercises for the three months ended March 31, 2011 and 2010 was $1.8 million and $1.4 million, respectively. The actual tax benefit realized for the tax deductions from option exercises totaled $1.1 million and $0.2 million for the three months ended March 31, 2011 and 2010, respectively.

Software and Other Intangible Assets

3 Months Ended

Mar. 31, 2011

Software and Other Intangible Assets [Abstract]

Software and Other Intangible Assets

5. Software and Other Intangible Assets

At March 31, 2011, software net book value totaling $26.3 million, net of $51.2 million of accumulated amortization, includes the net book value of software marketed for external sale of $14.3 million. The remaining software net book value of $12.0 million is comprised of various software that has been acquired or developed for internal use.

Quarterly amortization of software marketed for external sale is computed using the greater of the ratio of current revenues to total estimated revenues expected to be derived from the software or the straight-line method over an estimated useful life of three to six years. Software for resale amortization expense recorded in the three months ended March 31, 2011 and 2010 totaled $1.6 million and $1.5 million, respectively. These software amortization expense amounts are reflected in cost of software license fees in the condensed consolidated statements of operations. Amortization of software for internal use of $1.9 million and $1.8 million for the three months ended March 31, 2011 and 2010, respectively, is included in depreciation and amortization in the condensed consolidated statements of operations.

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


	March 31, 2011							December 31, 2010
	Gross							Gross
	Carrying		Accumulated					Carrying		Accumulated
	Amount		Amortization			Net Balance		Amount		Amortization			Net Balance
Customer relationships	$	40,988	$	(20,253	)	$	20,735	$	36,393	$	(18,855	)	$	17,538
Purchased contracts		10,814		(9,015	)		1,799		10,753		(8,504	)		2,249
Trademarks and tradenames		1,359		(482	)		877		1,062		(422	)		640
Covenant not to compete		85		(68	)		17		83		(62	)		21

	$	53,246	$	(29,818	)	$	23,428	$	48,291	$	(27,843	)	$	20,448

Other intangible assets amortization expense totaled $1.6 million for the three months ended March 31, 2011 and 2010.

Based on capitalized software and other intangible assets at March 31, 2011, estimated amortization expense for future fiscal years is as follows (in thousands):


			Other
			Intangible
	Software		Assets
Fiscal Year Ending December 31,	Amortization		Amortization
Remainder of 2011	$	10,005	$	4,862
2012		9,992		5,527
2013		3,895		5,269
2014		2,054		3,450
2015		325		1,534
Thereafter		—		2,786

Total	$	26,271	$	23,428

Segment Information

3 Months Ended

Mar. 31, 2011

Segment Information [Abstract]

Segment Information

9. Segment Information

The Company’s chief operating decision maker, together with other senior management personnel, currently focus their review of consolidated financial information and the allocation of resources based on reporting of operating results, including revenues and operating income, for the geographic regions of the Americas, Europe/Middle East/Africa (“EMEA”) and Asia/Pacific. The Company’s products are sold and supported through distribution networks covering these three geographic regions, with each distribution network having its own sales force. The Company supplements its distribution networks with independent reseller and/or distributor arrangements. As such, the Company has concluded that its three geographic regions are its operating segments.

The Company’s chief operating decision maker reviews financial information presented on a consolidated basis, accompanied by disaggregated information about revenues and operating income (loss) by geographical region.

The Company allocated segment support expenses such as global product delivery and development, global customer operations and global product management based upon percentage of revenue per segment. Corporate overhead costs are allocated as a percentage of the headcount by segment. The following is selected segment financial data for the periods indicated (in thousands):


	Three Months Ended
	March 31,
	2011			2010
Revenues:
Americas	$	52,330		$	46,316
EMEA		42,141			31,913
Asia/Pacific		10,072			9,514

	$	104,543		$	87,743


Operating income (loss):
Americas	$	5,963		$	3,059
EMEA		6,260			(141	)
Asia/Pacific		(4,725	)		(3,823	)

	$	7,498		$	(905	)


	March 31,		December 31,
	2011		2010
Total assets:
Americas — United States	$	344,735	$	335,457
Americas — Other		29,909		21,254
EMEA		184,500		186,209
Asia/Pacific		56,309		58,609

	$	615,453	$	601,529

No single customer accounted for more than 10% of the Company’s consolidated revenues during the three months ended March 31, 2011 and 2010. Aggregate revenues attributable to customers in the United Kingdom accounted for 14.9% of the Company’s consolidated revenues during the three months ended March 31, 2011. No country outside the United States accounted for more than 10% of the Company’s consolidated revenues during the three months ended March 31, 2010.

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2011
Income Taxes [Abstract]
Income Taxes	10. Income Taxes The effective tax rate for the three months ended March 31, 2011 was 76.1%. The Company reported tax expense for the three months ended March 31, 2010 while reporting a pretax loss for the same period. The resulting effective tax rate is negative. The effective tax rate in both periods is negatively impacted by the Company’s inability to recognize income tax benefits during the period on losses sustained in certain tax jurisdictions where the future utilization of the losses are uncertain, and by the recognition of tax expense associated with the transfer of certain intellectual property rights from U.S. to non-U.S. entities. The Company’s effective tax rate could fluctuate significantly on a quarterly basis and could be adversely affected to the extent earnings are lower in the countries in which it operates that have a lower statutory rate or higher in the countries in which it operates that have a higher statutory rate or the extent it has losses sustained in countries where the future utilization of losses are uncertain. The Company’s effective tax rate could also fluctuate due to changes in the valuation of its deferred tax assets or liabilities, or by changes in tax laws, regulations, accounting principles, or interpretations thereof. In addition, the Company is occasionally subject to examination of its income tax returns by tax authorities in the jurisdictions it operates. The Company regularly assesses the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of its provision for income taxes. The amount of unrecognized tax benefits for uncertain tax positions was $8.4 million as of March 31, 2011 and $8.4 million as of December 31, 2010, excluding related liabilities for interest and penalties of $2.3 million as of March 31, 2011 and $2.2 million as of December 31, 2010. The Company believes it is reasonably possible that the total amount of unrecognized tax benefits will decrease within the next 12 months by approximately $5.9 million, due to the settlement of various audits and the expiration of statutes of limitation.

Derivative Instruments and Hedging Activities	3 Months Ended
Derivative Instruments and Hedging Activities	Mar. 31, 2011
Derivative Instruments and Hedging Activities [Abstract]
Derivative Instruments and Hedging Activities	6. Derivative Instruments and Hedging Activities The Company had two interest rate swaps that terminated on October 4, 2010. Neither swap qualified for hedge accounting. Accordingly, the loss resulting from the change in the fair value of the interest rate swaps of $0.2 million for the three months ended March 31, 2010, was reflected as expense in other income (expense), net in the accompanying condensed consolidated statements of operations. As both interest rate swaps terminated on October 4, 2010, there was no liability reported in the accompanying condensed consolidated balance sheet as of March 31, 2011 and December 31, 2010.

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2011
Commitments and Contingencies [Abstract]
Commitments and Contingencies	11. Commitments and Contingencies Legal Proceedings From time to time, the Company is involved in various litigation matters arising in the ordinary course of its business. The Company is not currently a party to any legal proceedings, the adverse outcome of which, individually or in the aggregate, the Company believes would be likely to have a material adverse effect on the Company’s financial condition or results of operations.