Informatica 10-Q 7 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Oct. 31, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'INFORMATICA CORP	'
Entity Trading Symbol	'INFA	'
Entity Central Index Key	'0001080099	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-13	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Current Fiscal Year End Date	'--12-31	'
Entity Well-Known Seasoned Issuer	'Yes	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	108,513

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$280,355	$190,127
Short-term investments	340,263	345,478
Accounts receivable, net of allowances of $4,691 and $5,460, respectively	162,405	171,893
Deferred tax assets	23,768	23,350
Prepaid expenses and other current assets	29,035	29,396
Total current assets	835,826	760,244
Property and equipment, net	150,772	145,474
Goodwill	522,124	510,121
Other intangible assets, net	48,349	67,260
Long-term deferred tax assets	30,713	24,087
Other assets	6,382	5,031
Total assets	1,594,166	1,512,217
Current liabilities:	'	'
Accounts payable	7,952	8,885
Accrued liabilities	59,033	64,475
Accrued compensation and related expenses	57,620	55,382
Income taxes payable	2,418	0
Deferred revenues	253,798	241,968
Total current liabilities	380,821	370,710
Long-term deferred revenues	9,487	8,807
Long-term deferred tax liabilities	2,850	2,523
Long-term income taxes payable	26,394	21,195
Other liabilities	557	3,459
Total liabilities	420,109	406,694
Commitments and contingencies (Note 12)	'	'
Equity:	'	'
Common stock, $0.001 par value; 200,000 shares authorized; 108,449 shares and 107,301 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	108	107
Additional paid-in capital	789,058	764,298
Accumulated other comprehensive loss	-8,316	-8,030
Retained earnings	393,207	346,730
Total Informatica Corporation stockholders' equity	1,174,057	1,103,105
Noncontrolling interest	0	2,418
Total equity	1,174,057	1,105,523
Total liabilities and equity	$1,594,166	$1,512,217

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Current assets:	'	'
Accounts receivable, allowances	$4,691	$5,460
Stockholders' equity:	'	'
Common stock, par value (in usd per share)	$0.00	$0.00
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	108,449,000	107,301,000
Common stock, shares outstanding	108,449,000	107,301,000

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues:	'	'	'	'
Software	$99,826	$73,850	$279,160	$237,347
Service	135,568	116,468	392,973	339,483
Total revenues	235,394	190,318	672,133	576,830
Cost of revenues:	'	'	'	'
Software	2,710	1,511	7,353	5,779
Service	37,221	30,069	109,714	90,195
Amortization of acquired technology	5,625	5,172	16,970	16,164
Total cost of revenues	45,556	36,752	134,037	112,138
Gross profit	189,838	153,566	538,096	464,692
Operating expenses:	'	'	'	'
Research and development	42,167	35,998	123,358	105,561
Sales and marketing	94,160	73,239	267,727	213,615
General and administrative	23,159	15,692	60,827	46,369
Amortization of intangible assets	1,893	1,462	5,881	4,690
Facilities restructuring and facility lease termination costs	0	0	0	710
Acquisitions and other charges	1,253	2,036	2,467	2,389
Total operating expenses	162,632	128,427	460,260	373,334
Income from operations	27,206	25,139	77,836	91,358
Interest income	805	987	2,588	3,342
Interest expense	-121	-126	-369	-379
Other expense, net	-295	-533	-754	-1,257
Income before income taxes	27,595	25,467	79,301	93,064
Income tax provision	17,191	9,966	32,824	30,948
Net income	$10,404	$15,501	$46,477	$62,116
Basic net income per common share	$0.10	$0.14	$0.43	$0.58
Diluted net income per common share	$0.09	$0.14	$0.42	$0.55
Shares used in computing basic net income per common share	108,305	108,091	108,039	107,957
Shares used in computing diluted net income per common share	111,501	111,776	111,372	112,518

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income	$10,404	$15,501	$46,477	$62,116
Other comprehensive income:	'	'	'	'
Change in foreign currency translation adjustment, net of tax benefit (expense) of $(317), $(50), $(74) and $23	7,370	3,378	1,202	-1
Available-for-sale investments:	'	'	'	'
Change in net unrealized gain (loss), net of tax benefit (expense) of $(187), $(117), $183 and $(322)	304	191	-300	526
Less: reclassification adjustment for net loss included in net income, net of tax benefit of $12, $1, $22 and $b	19	2	36	0
Net change on available-for-sale investments, net of tax benefit (expense) of $(199), $(118), $161 and $(322)	323	193	-264	526
Cash flow hedges:	'	'	'	'
Change in unrealized gain (loss) on derivatives, net of tax benefit (expense) of $455, $(135), $1,149 and $24	-744	218	-1,875	-41
Less: reclassification adjustment for net loss included in net income, net of tax benefit of $349, $328, $398 and $624	571	536	651	1,019
Net change on cash flow hedges, net of tax benefit (expense) of $106, $(463), $751 and $(600)	-173	754	-1,224	978
Total other comprehensive income (loss), net of tax effect	7,520	4,325	-286	1,503
Total comprehensive income, net of tax effect	$17,924	$19,826	$46,191	$63,619

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax [Abstract]	'	'	'	'
Tax benefit (expense) related to foreign currency translation adjustment	($317)	($50)	($74)	$23
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax [Abstract]	'	'	'	'
Tax benefit (expense) related to available-for-sale investments, before reclassification adjustments	-187	-117	183	-322
Less: Tax benefit related to reclassification adjustment for sale of securities included in net income	12	1	22	0
Tax benefit (expense) related to available-for-sale investments	-199	-118	161	-322
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect [Abstract]	'	'	'	'
Tax benefit (expense) related to unrealized gain (loss) on cash flow hedges arising during the period	455	-135	1,149	24
Less: Tax benefit related to reclassification adjustment on cash flow hedges included in net income	349	328	398	624
Tax benefit (expense) related to cash flow hedges	$106	($463)	$751	($600)

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Operating activities:	'	'
Net income	$46,477	$62,116
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	10,773	8,709
Share-based compensation	44,248	31,583
Deferred income taxes	-4,730	-1,830
Tax benefits from share-based compensation	5,312	12,577
Excess tax benefits from share-based compensation	-6,982	-12,470
Amortization of intangible assets and acquired technology	22,851	20,854
Other operating activities, net	-352	939
Changes in operating assets and liabilities:	'	'
Accounts receivable	9,960	54,083
Prepaid expenses and other assets	2,893	12,626
Accounts payable and accrued liabilities	-8,002	-30,616
Income taxes payable	4,588	-1,894
Accrued facilities restructuring charges	0	-23,977
Deferred revenues	11,688	12,152
Net cash provided by operating activities	138,724	144,852
Investing activities:	'	'
Purchases of property and equipment	-16,059	-137,599
Purchases of investments	-267,618	-204,515
Investment in equity interest, net	-2,001	-257
Maturities of investments	145,971	47,051
Sales of investments	125,576	98,558
Business acquisitions, net of cash acquired	-7,464	-8,438
Net cash used in investing activities	-21,595	-205,200
Financing activities:	'	'
Net proceeds from issuance of common stock	46,661	38,555
Repurchases and retirement of common stock	-63,936	-58,709
Withholding taxes related to restricted stock units net share settlement	-6,412	-6,243
Payment of contingent consideration	-3,670	-4,440
Excess tax benefits from share-based compensation	6,982	12,470
Purchase of acquiree stock	-6,365	0
Net cash used in financing activities	-26,740	-18,367
Effect of foreign exchange rate changes on cash and cash equivalents	-161	-729
Net increase (decrease) in cash and cash equivalents	90,228	-79,444
Cash and cash equivalents at beginning of period	190,127	316,835
Cash and cash equivalents at end of period	$280,355	$237,391

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Summary of Significant Accounting Policies
	Basis of Presentation
	The accompanying condensed consolidated financial statements of Informatica Corporation (“Informatica,” or the “Company”) have been prepared in conformity with generally accepted accounting principles (“GAAP”) in the United States of America. However, certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed, or omitted, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, the financial statements include all normal and recurring adjustments that are necessary to fairly present the results of the interim periods presented. All of the amounts included in this Quarterly Report on Form 10-Q related to the condensed consolidated financial statements and notes thereto as of and for the three and nine months ended September 30, 2013 and 2012 are unaudited. The interim results presented are not necessarily indicative of results for any subsequent interim period, the year ending December 31, 2013, or any other future period.
	The preparation of the Company's condensed consolidated financial statements in conformity with GAAP requires management to make certain estimates, judgments, and assumptions. The Company believes that the estimates, judgments, and assumptions upon which it relies are reasonable based on information available at the time that these estimates, judgments, and assumptions are made. These estimates, judgments, and assumptions can affect the reported amounts of assets and liabilities as of the date of the financial statements as well as the reported amounts of revenues and expenses during the periods presented. To the extent there are material differences between these estimates and actual results, Informatica's financial statements would be affected. In many cases, the accounting treatment of a particular transaction is specifically dictated by GAAP and does not require management's judgment in its application. There are also instances where management's judgment in selecting an available alternative would not produce a materially different result.
	The condensed consolidated financial statements include the accounts of the Company and its wholly-owned and majority-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
	In October 2012, the Company announced its decision to make a voluntary public takeover offer to acquire all the outstanding shares of Heiler Software AG ("Heiler"). In November 2012, the Company acquired a majority interest in the shares of Heiler at the end of the initial acceptance period of the takeover offer. The squeeze-out of the remaining shareholders was effective in the second quarter of 2013, increasing the Company's ownership in Heiler to 100 percent. The noncontrolling interest position is reported as a separate component of consolidated equity from the equity attributable to the Company's stockholders for the period ended December 31, 2012. The noncontrolling interest in the Company's net income was not significant to consolidated results for the nine months ended September 30, 2013 and therefore has been included as a component of other income (expense), net in the condensed consolidated statements of income.
	These unaudited, condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and notes thereto for the year ended December 31, 2012 included in the Company's Annual Report on Form 10-K filed with the SEC. The consolidated balance sheet as of December 31, 2012 has been derived from the audited consolidated financial statements of the Company. The Company's significant accounting policies are described in Note 2 to the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2012.
	Certain reclassifications have been made within the condensed consolidated statement of cash flows to conform to the current year presentation. In addition, during the first quarter of 2013, the Company performed a review of the presentation of certain of its revenue categories and adopted a revised presentation, which the Company believes more accurately reflects its evolving product and service offerings. A change was made to rename other revenues to subscription revenues and to present subscription revenues and license revenues as software revenues. Other revenues were previously presented in services revenues. A corresponding change was made to present cost of license revenues and cost of other revenues as cost of software revenues. This change in presentation will not affect total revenues, total cost of revenues or total gross margin. Conforming changes have been made for all prior periods presented. Subscription revenues of $8.0 million and $20.4 million for the three and nine months ended September 30, 2012, respectively were reclassified from service revenues to software revenues. Cost of subscription revenues of $0.6 million and $2.6 million for the three and nine months ended September 30, 2012, respectively were reclassified from cost of service revenues to cost of software revenues.
	Recent Accounting Pronouncements
	In December 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2011-11, Balance Sheet (Topic 210) - Disclosures about Offsetting Assets and Liabilities, that requires an entity to disclose additional information about offsetting and related arrangements to enable users of the financial statements to understand the effect of those arrangements on the financial position. In January 2013, the FASB issued ASU 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. ASU 2013-01 clarifies that the scope of ASU 2011-11 applies to derivatives accounted for in accordance with Topic 815, Derivatives and Hedging, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset or subject to an enforceable master netting arrangement or similar agreement. The Company adopted both standards as required on January 1, 2013. Adoption of ASU 2011-11 and ASU 2013-01 did not impact the Company's condensed consolidated financial statements.
	In July 2012, the FASB issued ASU No. 2012-02 Testing Indefinite-Lived Intangible Assets, to simplify how entities test indefinite-lived intangible assets other than goodwill for impairment. These amended standards permit an assessment of qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying value. For assets in which this assessment concludes it is more likely than not that the fair value is more than its carrying value, these amended standards eliminate the requirement to perform quantitative impairment testing as outlined in the previously issued standards. ASU 2012-02 is effective for the Company's impairment test in October 2013 and early adoption is permitted. The Company does not expect its adoption of ASU 2012-02 to have an impact on the condensed consolidated financial statements and disclosures.
	In February 2013, the FASB issued ASU 2013-02, Comprehensive Income (Topic 220) - Reporting of Amounts Reclassified Out Of Accumulated Other Comprehensive Income. ASU 2013-02 requires an entity to present, either parenthetically on the face of its statement where net income is presented or in a note, the effect of significant reclassifications out of accumulated other comprehensive income by the respective income statement line items if the amount being reclassified is required under GAAP to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety from accumulated other comprehensive income to net income in the same reporting period, an entity is required to cross-reference to the other disclosures where additional details about the effect of the reclassifications are disclosed. The Company adopted ASU 2013-02 prospectively as required on January 1, 2013. The Company has elected to present the required information in a single footnote as this will provide a clearer presentation of the items reclassified from accumulated other comprehensive income to net income. Adoption of this new amended guidance did not have a material impact on the Company's disclosures to its financial statements.
	In March 2013, the FASB issued ASU 2013-05, Foreign Currency Matters (Topic 830): Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity. ASU 2013-05 clarifies that the cumulative translation adjustment (“CTA”) should be released into net income upon the occurrence of certain qualifying events. ASU 2013-05 will be effective for the Company in 2014 with early adoption permitted, which will be applied prospectively. The Company is currently evaluating the impact of its pending adoption of ASU 2013-05 on its consolidated financial statements and disclosures.
	There have been no other changes in our critical accounting policies since the end of 2012.
	Fair Value Measurement of Financial Assets and Liabilities
	The following table summarizes financial assets and financial liabilities that the Company measures at fair value on a recurring basis as of September 30, 2013 (in thousands):
					Quoted		Significant		Significant
					Prices in		Other		Unobservable
					Active		Observable		Inputs
					Markets for		Inputs		(Level 3)
					Identical		(Level 2)
		Total			Assets
					(Level 1)
	Assets:
	Money market funds (i)	$	12,551		$	12,551	$	—	$	—
	Time deposits (ii)	18,196			18,196		—		—
	Marketable debt securities (ii)	322,067			—		322,067		—
	Foreign currency derivatives (iii)	4			—		4		—
	Total assets	$	352,818		$	30,747	$	322,071	$	—
	Liabilities:
	Foreign currency derivatives (iv)	$	2,304		$	—	$	2,304	$	—
	Acquisition-related contingent consideration (iv)	3,579			—		—		3,579
	Total liabilities	$	5,883		$	—	$	2,304	$	3,579
	The following table summarizes financial assets and financial liabilities that the Company measures at fair value on a recurring basis as of December 31, 2012 (in thousands):
					Quoted
					Prices in		Significant
					Active		Other		Significant
					Markets for		Observable		Unobservable
					Identical		Inputs		Inputs
		Total			Assets		(Level 2)		(Level 3)
					(Level 1)
	Assets:
	Money market funds (i)	$	18,565		$	18,565	$	—	$	—
	Time deposits (ii)	17,437			17,437		—		—
	Marketable debt securities (ii)	328,041			—		328,041		—
	Total assets	$	364,043		$	36,002	$	328,041	$	—
	Liabilities:
	Foreign currency derivatives (iv)	$	408		$	—	$	408	$	—
	Acquisition-related contingent consideration (v)	9,230			—		—		9,230
	Total liabilities	$	9,638		$	—	$	408	$	9,230
	____________________
	(i)	Included in cash and cash equivalents on the condensed consolidated balance sheets.
	(ii)	Included in short-term investments on the condensed consolidated balance sheets.
	(iii)	Included in prepaid expenses and other current assets on the condensed consolidated balance sheets.
	(iv)	Included in accrued liabilities on the condensed consolidated balance sheets.
	(v)	Included in accrued and other liabilities on the condensed consolidated balance sheets.
	Money Market Funds, Time Deposits, and Marketable Securities
	The Company uses a market approach for determining the fair value of all its Level 1 and Level 2 money market funds, time deposits, and marketable securities.
	To value its money market funds and time deposits, the Company values the funds at $1 stable net asset value, which is the market pricing convention for identical assets that the Company has the ability to access.
	The Company's marketable securities consist of certificates of deposit, commercial paper, corporate notes and bonds, municipal securities, and U.S. government and agency notes and bonds. To value its certificates of deposit and commercial paper, the Company uses mathematical calculations to arrive at fair value for these securities, which generally have short maturities and infrequent secondary market trades. For example, in the absence of any observable transactions, the Company may accrete from purchase price at purchase date to face value at maturity. In the event that a transaction is observed on the same security in the marketplace, and the price on that subsequent transaction clearly reflects the market price on that day, the Company will adjust the price in the system to the observed transaction price and follow a revised accretion schedule to determine the daily price.
	To determine the fair value of its corporate notes and bonds, municipal securities, and U.S. government and agency notes and bonds, the Company uses a third party pricing source for each security. If the market price is not available from the third party source, pricing from the Company's investment custodian is used.
	Foreign Currency Derivatives and Hedging Instruments
	The Company uses the income approach to value the derivatives using observable Level 2 market inputs at the measurement date and standard valuation techniques to convert future amounts to a single present value amount, assuming that participants are motivated but not compelled to transact. Level 2 inputs are limited to quoted prices that are observable for the derivative assets and liabilities. The Company uses mid-market pricing as a practical expedient for fair value measurements. Key inputs for currency derivatives include spot and forward rates, interest rates, and credit derivative market rates. The spot rate for each currency is the same spot rate used for all balance sheet translations at the measurement date and is sourced from the Federal Reserve Bulletin. The following values are interpolated from commonly quoted intervals available from Bloomberg: forward points and the London Interbank Offered Rate ("LIBOR") used to discount and determine the fair value of assets and liabilities. Credit default swap spread curves identified per counterparty at month end in Bloomberg are used to discount derivative assets for counterparty non-performance risk, all of which have terms of twelve months or less. The Company discounts derivative liabilities to reflect the Company’s own potential non-performance risk to lenders and has used the spread over LIBOR on its most recent corporate borrowing rate.
The counterparties associated with the Company’s foreign currency forward contracts are large credit-worthy financial institutions, and the derivatives transacted with these entities are relatively short in duration; therefore, the Company does not consider counterparty concentration and non-performance to be material risks at this time. Both the Company and the counterparties are expected to perform under the contractual terms of the instruments.
There were no transfers between Level 1 and Level 2 categories during the three and nine months ended September 30, 2013 and 2012.
See Note 5. Accumulated Other Comprehensive Income (Loss), Note 6. Derivative Financial Instruments, and Note 12. Commitments and Contingencies of Notes to Condensed Consolidated Financial Statements for a further discussion.
Acquisition-related Contingent Consideration
The Company estimated the fair value of the acquisition-related contingent consideration using a probability-weighted discounted cash flow model. This fair value measure was based on significant inputs not observed in the market and thus represented a Level 3 instrument. Level 3 instruments are valued based on unobservable inputs that are supported by little or no market activity and reflect our own assumptions in measuring fair value. There were no transfers into or out of the Level 3 category during the three and nine months ended September 30, 2013 and 2012. The change in fair value of acquisition-related contingent consideration is included in acquisitions and other charges in the condensed consolidated statements of income.
The changes in the acquisition-related contingent consideration liability for the nine months ended September 30, 2013 consisted of the following (in thousands):
	September 30,
	2013
Beginning balance as of December 31, 2012	$	9,230
Change in fair value of contingent consideration	(1,981		)
Payment of contingent consideration	(3,670		)
Ending balance as of September 30, 2013	$	3,579
See Note 14. Acquisitions of Notes to Condensed Consolidated Financial Statements for a further discussion.

Cash_Cash_Equivalents_and_Shor

Cash, Cash Equivalents, and Short-Term Investments	9 Months Ended
	Sep. 30, 2013
Cash, Cash Equivalents, and Short-term Investments [Abstract]	'
Cash, Cash Equivalents, and Short-term Investments	'
	Cash, Cash Equivalents, and Short-Term Investments
	The Company's marketable securities are classified as available-for-sale as of the balance sheet date and are reported at fair value with unrealized gains and losses reported as a separate component of accumulated other comprehensive income in stockholders' equity, net of tax. Realized gains or losses and other-than-temporary impairments, if any, on available-for-sale securities are reported in other income or expense as incurred. Realized gains recognized for the three and nine months ended September 30, 2013 and 2012 were negligible. The cost of securities sold was determined based on the specific identification method.
	The following table summarizes the Company’s cash, cash equivalents, and short-term investments as of September 30, 2013 (in thousands):
				Gross			Gross			Estimated
		Cost		Unrealized			Unrealized			Fair Value
				Gains			Losses
	Cash	$	267,804	$	—		$	—		$	267,804
	Cash equivalents:
	Money market funds	12,551		—			—			12,551
	Total cash equivalents	12,551		—			—			12,551
	Total cash and cash equivalents	280,355		—			—			280,355
	Short-term investments:
	Certificates of deposit	1,200		—			—			1,200
	Commercial paper	10,663		—			—			10,663
	Corporate notes and bonds	166,424		134			(268		)	166,290
	Federal agency notes and bonds	72,568		56			(53		)	72,571
	Time deposits	18,196		—			—			18,196
	U.S. government notes and bonds	1,999		2			—			2,001
	Municipal notes and bonds	69,248		100			(6		)	69,342
	Total short-term investments	340,298		292			(327		)	340,263
	Total cash, cash equivalents, and short-term investments (i)	$	620,653	$	292		$	(327	)	$	620,618
	____________________
	(i)	Total estimated fair value above included $352.8 million comprised of cash equivalents and short-term investments at September 30, 2013.
	The following table summarizes the Company’s cash, cash equivalents, and short-term investments as of December 31, 2012 (in thousands):
				Gross			Gross			Estimated
		Cost		Unrealized			Unrealized			Fair Value
				Gains			Losses
	Cash	$	171,562	$	—		$	—		$	171,562
	Cash equivalents:
	Money market funds	18,565		—			—			18,565
	Total cash equivalents	18,565		—			—			18,565
	Total cash and cash equivalents	190,127		—			—			190,127
	Short-term investments:
	Certificates of deposit	2,246		3			—			2,249
	Commercial paper	6,294		—			—			6,294
	Corporate notes and bonds	151,133		322			(56		)	151,399
	Federal agency notes and bonds	104,961		128			(10		)	105,079
	Time deposits	17,437		—			—			17,437
	U.S. government notes and bonds	7,094		18			—			7,112
	Municipal notes and bonds	55,922		18			(32		)	55,908
	Total short-term investments	345,087		489			(98		)	345,478
	Total cash, cash equivalents, and short-term investments (i)	$	535,214	$	489		$	(98	)	$	535,605
	____________________
	(i)	Total estimated fair value above included $364.0 million comprised of cash equivalents and short-term investments at December 31, 2012.
	See Note 1. Summary of Significant Accounting Policies of Notes to Condensed Consolidated Financial Statements for further information regarding the fair value of the Company's financial instruments.
	The following table summarizes the fair value and gross unrealized losses related to the Company’s short-term investments, aggregated by investment category that have been in a continuous unrealized loss position for less than twelve months, at September 30, 2013 (in thousands):
		Less Than 12 months
				Gross
		Fair		Unrealized
		Value		Losses
	Corporate notes and bonds	$	100,336	$	(264	)
	Federal agency notes and bonds	31,684		(53		)
	Municipal notes and bonds	4,991		(6		)
	Total	$	137,011	$	(323	)
	The following table summarizes the fair value and gross unrealized losses related to the Company’s short-term investments, aggregated by investment category that have been in a continuous unrealized loss position for greater than twelve months, at September 30, 2013 (in thousands):
		Greater Than 12 months
				Gross
		Fair		Unrealized
		Value		Losses
	Corporate notes and bonds	$	2,180	$	(4	)
	Total	$	2,180	$	(4	)
	The changes in value of these investments are primarily related to changes in interest rates and are considered to be temporary in nature.
	The following table summarizes the cost and estimated fair value of the Company’s short-term investments by contractual maturity at September 30, 2013 (in thousands):
	Cost		Fair Value
Due within one year	$	152,300	$	152,419
Due in one year to two years	105,671		105,686
Due after two years	82,327		82,158
Total	$	340,298	$	340,263

Intangible_Assets_and_Goodwill

Intangible Assets and Goodwill	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Intangible Assets and Goodwill	'
	Intangible Assets and Goodwill
	The carrying amounts of the intangible assets other than goodwill as of September 30, 2013 and December 31, 2012 are as follows (in thousands, except years):
		September 30, 2013							December 31, 2012							Weighted Average Useful Life
		Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net		(Years)
	Developed and core technology	$	130,291	$	(93,690	)	$	36,601	$	123,221	$	(76,721	)	$	46,500	6
	Other Intangible Assets:
	Customer relationships	41,675		(34,013		)	7,662		40,952		(30,063		)	10,889		6
	All other (i)	17,205		(13,119		)	4,086		17,208		(11,187		)	6,021		11-Apr
	Total other intangible assets	58,880		(47,132		)	11,748		58,160		(41,250		)	16,910
	Total intangible assets subject to amortization	189,171		(140,822		)	48,349		181,381		(117,971		)	63,410
	In-process research and development	—		—			—		3,850		—			3,850		N.A.
	Total intangible assets, net	$	189,171	$	(140,822	)	$	48,349	$	185,231	$	(117,971	)	$	67,260
	____________________
	(i)	All other includes vendor relationships, trade names, covenants not to compete, and patents.
	Total amortization expense related to intangible assets was $7.5 million and $6.6 million for the three months ended September 30, 2013 and 2012, respectively, and $22.9 million and $20.9 million for the nine months ended September 30, 2013 and 2012, respectively. Certain intangible assets were recorded in foreign currencies; and therefore, the gross carrying amount and accumulated amortization are subject to foreign currency translation adjustments.
	As of September 30, 2013, the amortization expense related to identifiable intangible assets in future periods is expected to be as follows (in thousands):
		Acquired		Other			Total
		Technology		Intangible			Intangible
				Assets			Assets
	Remaining 2013	$	5,337	$	1,848		$	7,185
	2014	12,931		4,728			17,659
	2015	8,530		2,094			10,624
	2016	5,006		1,298			6,304
	2017	3,090		862			3,952
	Thereafter	1,707		918			2,625
	Total intangible assets subject to amortization	$	36,601	$	11,748		$	48,349
	In the fourth quarter of 2012, the Company recorded in-process research and development (IPR&D) of $3.8 million associated with the acquisition of a majority interest in Heiler. The IPR&D capitalized costs were associated with software development efforts in process at the time of the business combination that had not yet achieved technological feasibility and no future alternative uses had been identified. Technological feasibility was achieved during the first nine months of 2013 for the IPR&D from the acquisition, which was reclassified to developed technology and will be amortized over the expected useful life of the technology. See Note 14. Acquisitions for further discussion of intangible assets from acquisitions.
	The changes in the carrying amount of goodwill for the nine months ended September 30, 2013 are as follows (in thousands):
		September 30,
		2013
	Beginning balance as of December 31, 2012	$	510,121
	Goodwill from acquisitions	7,110
	Subsequent goodwill adjustments	4,893
	Ending balance as of September 30, 2013	$	522,124
	During the nine months ended September 30, 2013, the Company recorded subsequent goodwill adjustments of $4.9 million which consist of a $2.8 million measurement period adjustment related to Heiler accrued liabilities and foreign currency translation adjustments of $2.3 million, partially offset by income tax related balance sheet adjustments of $(0.2) million within the measurement period related to prior acquisitions. The goodwill is partially deductible for tax purposes. See Note 14. Acquisitions for a further discussion of goodwill from acquisitions.

Borrowings

Borrowings	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Borrowings	'
	Borrowings
	Credit Agreement
	On September 29, 2010, the Company entered into a Credit Agreement (the "Credit Agreement") that matures on September 29, 2014. The Credit Agreement provides for an unsecured revolving credit facility in an amount of up to $220.0 million, with an option for the Company to request to increase the revolving loan commitments by an aggregate amount of up to $30.0 million with new or additional commitments, for a total credit facility of up to $250.0 million. No amounts were outstanding under the Credit Agreement as of September 30, 2013, and a total of $220.0 million remained available for borrowing.
	Revolving loans accrue interest at a per annum rate based on either, at our election, (i) the base rate plus a margin ranging from 1.00% to 1.75% depending on the Company's consolidated leverage ratio, or (ii) LIBOR (based on 1-, 2-, 3-, or 6-month interest periods) plus a margin ranging from 2.00% to 2.75% depending on the Company's consolidated leverage ratio. The base rate is equal to the highest of (i) JPMorgan Chase Bank, N.A.'s prime rate, (ii) the federal funds rate plus a margin equal to 0.50%, and (iii) LIBOR for a 1-month interest period plus a margin equal to 1.00%. Revolving loans may be borrowed, repaid and reborrowed until September 29, 2014, at which time all amounts borrowed must be repaid. Accrued interest on the revolving loans is payable quarterly in arrears with respect to base rate loans and at the end of each interest rate period (or at each 3- month interval in the case of loans with interest periods greater than 3 months) with respect to LIBOR loans. The Company is also obligated to pay other customary closing fees, arrangement fees, administrative fees, commitment fees, and letter of credit fees. A quarterly commitment fee is applied to the average daily unborrowed amount under the credit facility at a per annum rate ranging from 0.35% to 0.50% depending on the Company's consolidated leverage ratio. The Company may prepay the loans or terminate or reduce the commitments in whole or in part at any time, without premium or penalty, subject to certain conditions including minimum amounts in the case of commitment reductions and reimbursement of certain costs in the case of prepayments of LIBOR loans.
	The Credit Agreement contains customary representations and warranties, covenants, and events of default, including the requirement to maintain a maximum consolidated leverage ratio of 2.75 to 1.00 and a minimum consolidated interest coverage ratio of 3.50 to 1.00. The occurrence of an event of default could result in the acceleration of the obligations under the Credit Agreement. Under certain circumstances, a default interest rate will apply on all obligations during the existence of an event of default under the Credit Agreement at a per annum rate equal to 2.00% above the applicable interest rate for any overdue principal and 2.00% above the rate applicable for base rate loans for any other overdue amounts. The Company was in compliance with all covenants under the Credit Agreement as of September 30, 2013.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income (Loss)
	The following table summarizes the changes in accumulated balances for each component of other comprehensive income (loss) for the three months ended September 30, 2013, net of taxes (in thousands):
			Cumulative Translation Adjustments			Net Unrealized Gain (Loss) on Available-for-Sale Investments				Net Unrealized Loss on Cash Flow Hedges				Total
	Accumulated other comprehensive loss as of June 30, 2013		$	(14,180	)	$	(345	)		$	(1,311	)		$	(15,836	)
	Other comprehensive income (loss):
	Other comprehensive income (loss) before reclassifications, net of tax benefit (expense) of $(317), $(187) and $455		7,370			304				(744		)		6,930
	Net loss reclassified from accumulated other comprehensive income (loss), net of tax benefit of $ —, $12 and $349		—			19			(i)	571			(ii)	590
	Total other comprehensive income (loss), net of tax effect		7,370			323				(173		)		7,520
	Accumulated other comprehensive loss as of September 30, 2013		$	(6,810	)	$	(22	)		$	(1,484	)		$	(8,316	)
	The following table summarizes the changes in accumulated balances for each component of other comprehensive income (loss) for the nine months ended September 30, 2013, net of taxes (in thousands):
			Cumulative Translation Adjustments			Net Unrealized Gain (Loss) on Available-for-Sale Investments				Net Unrealized Loss on Cash Flow Hedges				Total
	Accumulated other comprehensive income (loss) as of December 31, 2012		$	(8,012	)	$	242			$	(260	)		$	(8,030	)
	Other comprehensive income (loss):
	Other comprehensive income (loss) before reclassifications, net of tax benefit (expense) of $(74), $183 and $1,149		1,202			(300		)		(1,875		)		(973		)
	Net loss reclassified from accumulated other comprehensive income (loss), net of tax benefit of $ —, $22 and $398		—			36			(i)	651			(ii)	687
	Total other comprehensive income (loss), net of tax effect		1,202			(264		)		(1,224		)		(286		)
	Accumulated other comprehensive loss as of September 30, 2013		$	(6,810	)	$	(22	)		$	(1,484	)		$	(8,316	)
	____________________
	(i)	Included in other income (expense), net on the condensed consolidated income statements.
	(ii)	Included in operating expenses on the condensed consolidated income statements.
	The Company did not have any other-than-temporary gain or loss reflected in accumulated other comprehensive income (loss) as of September 30, 2013 and December 31, 2012.
	The Company determines the basis of the cost of a security sold and the amount reclassified out of other comprehensive income into statement of income based on specific identification.
	See Note 1. Summary of Significant Accounting Policies, Note 6. Derivative Financial Instruments, and Note 12. Commitments and Contingencies of Notes to Condensed Consolidated Financial Statements for a further discussion.

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments	'
	Derivative Financial Instruments
	The Company’s earnings and cash flows are subject to fluctuations due to changes in foreign currency exchange rates. The Company uses derivative instruments to manage its exposures to fluctuations in certain foreign currency exchange rates which exist as part of ongoing business operations. The Company and its subsidiaries do not enter into derivative contracts for speculative purposes.
	Cash Flow Hedges
	The Company enters into certain cash flow hedge programs in an attempt to reduce the impact of certain foreign currency fluctuations. These contracts are designated and documented as cash flow hedges. The purpose of these programs is to reduce the volatility of identified cash flow and expenses caused by movement in certain foreign currency exchange rates, in particular, the Indian rupee. The Company is currently using foreign exchange forward contracts to hedge certain non-functional currency anticipated expenses for its subsidiary in India.
	The Company releases the amounts accumulated in other comprehensive income into earnings in the same period or periods during which the forecasted hedge transaction affects earnings. The Company will reclassify all amounts accumulated in other comprehensive income into earnings within the next 12 months.
	The Company has forecasted the amount of its anticipated foreign currency expenses based on its historical performance and its projected financial plan. As of September 30, 2013, the remaining open foreign exchange contracts, carried at fair value, are hedging Indian rupee expenses and have a maturity of twelve months or less. These foreign exchange contracts mature monthly as the foreign currency denominated expenses are paid and any gain or loss is offset against operating expense. Once the hedged item is recognized, the cash flow hedge is de-designated and subsequent changes in value are recognized in other income (expense) to offset changes in the value of the resulting non-functional currency monetary liabilities.
	The notional amounts of these foreign exchange forward contracts in U.S. dollar equivalents were $20.8 million and $23.6 million as of September 30, 2013 and December 31, 2012, respectively.
	Balance Sheet Hedges
	Balance Sheet hedges consist of cash flow hedge contracts that have been de-designated and non-designated balance sheet hedges. These foreign exchange contracts are carried at fair value and either did not or no longer qualify for hedge accounting treatment and are not designated as hedging instruments. Changes in the value of the foreign exchange contracts are recognized in other income (expense) and offset the foreign currency gain or loss on the underlying monetary assets or liabilities. The notional amounts of foreign currency contracts open at period end in US dollar equivalents were $2.6 million and $2.7 million to buy at September 30, 2013 and December 31, 2012, respectively.
	The following table reflects the fair value amounts for the foreign exchange contracts designated and not designated as hedging instruments at September 30, 2013 and December 31, 2012 (in thousands):
		September 30, 2013						December 31, 2012
		Fair Value			Fair Value			Fair Value			Fair Value
		Derivative			Derivative			Derivative			Derivative
		Assets			Liabilities			Assets			Liabilities
		(i)			(ii)			(i)			(ii)
	Derivatives designated as hedging instruments	$	4		$	2,046		$	—		$	224
	Derivatives not designated as hedging instruments	—			258			—			184
	Total fair value of derivative instruments	$	4		$	2,304		$	—		$	408
	____________________
	(i)	Included in prepaid expenses and other current assets on the condensed consolidated balance sheets.
	(ii)	Included in accrued liabilities on the condensed consolidated balance sheets.
	The Company presents its derivative assets and derivative liabilities at gross fair values in the condensed consolidated balance sheets. However, under the master netting agreements with the respective counterparties of the foreign exchange contracts, subject to applicable requirements, the Company is allowed to net settle transactions of the same currency with a single net amount payable by one party to the other. As of September 30, 2013, the potential effect of rights to offset the gross derivative asset against the gross derivative liability for the foreign exchange contracts would result in a negligible net derivative liability associated with one counterparty. As of December 31, 2012, there was no potential effect of rights of offset associated with the above foreign exchange contracts that would result in a net derivative asset or net derivative liability. The Company is not required to pledge nor is entitled to receive cash collateral related to the above contracts.
	The Company evaluates prospectively as well as retrospectively the effectiveness of its hedge programs using statistical analysis. Prospective testing is performed at the inception of the hedge relationship and quarterly thereafter. Retrospective testing is performed on a quarterly basis. Informatica uses a change in spot price method and excludes the time value of derivative instruments for determination of hedge effectiveness.
	The effects of derivative instruments designated as cash flow hedges on the accumulated other comprehensive loss and condensed consolidated statements of income for the three and nine months ended September 30, 2013 and 2012 are as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Amount of gain (loss) recognized in other comprehensive income (effective portion)	$	(1,199	)	$	353		$	(3,024	)	$	(65	)
	Amount of loss reclassified from accumulated other comprehensive income to operating expenses (effective portion)	$	(920	)	$	(864	)	$	(1,049	)	$	(1,643	)
	Amount of gain recognized in income on derivatives for the amount excluded from effectiveness testing located in operating expenses	$	151		$	213		$	728		$	1,018
	The Company did not have any ineffective portion of the derivative recorded in the condensed consolidated statements of income.
	The gain (loss) recognized in other income, net for non-designated foreign currency forward contracts for the three and nine months ended September 30, 2013 and 2012 are as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Gain (loss) recognized in interest and other income, net	$	(46	)	$	80		$	(237	)	$	(663	)
	See Note 1. Summary of Significant Accounting Policies, Note 5. Accumulated Other Comprehensive Income (Loss), and Note 12. Commitments and Contingencies of Notes to Condensed Consolidated Financial Statements for a further discussion.

Stock_Repurchase_Program

Stock Repurchase Program	9 Months Ended
	Sep. 30, 2013
Stock Repurchase Program [Abstract]	'
Stock Repurchase Program	'
	Stock Repurchase Program
	The Company's Board of Directors has approved a stock repurchase program for the Company to repurchase its common stock. The primary purpose of the program is to enhance shareholder value, including partially offsetting the dilutive impact of stock based incentive plans. The number of shares to be purchased and the timing of the purchases are based on several factors, including the price of the Company's common stock, the Company's liquidity and working capital needs, general business and market conditions, and other investment opportunities. These purchases can be made from time to time in the open market and are funded from the Company’s available working capital. In July 2012, the Board of Directors approved the repurchase of up to an additional $100.0 million of the Company's outstanding common stock.
	This repurchase program does not have an expiration date. Repurchased shares are retired and reclassified as authorized and unissued shares of common stock. The Company may continue to repurchase shares from time to time, as determined by management under programs approved by the Board of Directors.
	During the three and nine months ended September 30, 2013, the Company repurchased approximately 557,000 shares of its common stock at a cost of $21.0 million and approximately 1,761,000 shares of its common stock at a cost of $63.9 million, respectively. During the three and nine months ended September 30, 2012, the Company repurchased approximately 915,000 shares of its common stock at a cost of $29.1 million and approximately 1,603,000 shares of its common stock at a cost of $58.7 million, respectively.
	As of September 30, 2013, $32.1 million remained available for share repurchases under this program.

ShareBased_Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-Based Compensation	'
	Share-Based Compensation
	The Company grants restricted stock units (“RSUs”) and stock options under its 2009 Equity Incentive Plan. The Company uses the Black-Scholes-Merton option pricing model to determine the fair value of each option award on the date of grant. The Company uses a blend of average historical and market-based implied volatilities for calculating the expected volatilities for employee stock options, and it uses market-based implied volatilities for its Employee Stock Purchase Plan (“ESPP”). The expected term of employee stock options granted is derived from historical exercise patterns of the options, and the expected term of ESPP is based on the contractual terms. The risk-free interest rate for the expected term of the options and ESPP is based on the U.S. Treasury yield curve in effect at the time of grant.
	The Company records share-based compensation for RSUs and options granted net of estimated forfeiture rates. The Company estimates forfeiture rates at the time of grant and revises those estimates in subsequent periods if actual forfeitures differ from those estimates. The Company uses historical forfeitures to estimate its future forfeiture rates.
	The fair value of the Company’s share-based awards was estimated based on the following assumptions:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Option grants:
	Expected volatility	41	%		47	%		41 - 43%			39 - 47%
	Weighted-average volatility	41	%		47	%		41	%		43	%
	Expected dividends	—			—			—			—
	Expected term of options (in years)	3.3			3.3			3.3			3.3
	Risk-free interest rate	1.1	%		0.5	%		0.7	%		0.5	%
	ESPP: (i)
	Expected volatility	37	%		53	%		37 - 42%			43 - 53%
	Weighted-average volatility	37	%		53	%		40	%		49	%
	Expected dividends	—			—			—			—
	Expected term of ESPP (in years)	0.5			0.5			0.5			0.5
	Risk-free interest rate	0.1	%		0.1	%		0.1	%		0.1	%
	____________________
	(i)	ESPP purchases are made on the last day of January and July of each year.
	The allocations of the share-based compensation, net of income tax benefit, for the three and nine months ended September 30, 2013 and 2012 are as follows (in thousands):
		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2013				2012				2013			2012
	Cost of service revenues	$	1,283			$	1,061			$	4,046		$	3,171
	Research and development	5,347				3,861				14,765			10,824
	Sales and marketing	5,002				3,599				15,377			10,078
	General and administrative	3,237				2,435				10,060			7,510
	Total share-based compensation	14,869				10,956				44,248			31,583
	Tax benefit of share-based compensation	(4,238		)		(2,815		)		(12,190		)	(8,066		)
	Total share-based compensation, net of tax benefit	$	10,631			$	8,141			$	32,058		$	23,517

Facilities_Restructuring_Charg

Facilities Restructuring Charges	9 Months Ended
	Sep. 30, 2013
Restructuring and Related Activities [Abstract]	'
Facilities Restructuring Charges	'
	Facilities Restructuring Charges
	In February 2000, the Company entered into lease agreements for two office buildings located at 2000 and 2100 Seaport Boulevard in Redwood City, California, which the Company occupied from August 2001 through December 2004 as its former corporate headquarters. These lease agreements had an original expiration date in July 2013. As a result of the 2004 Restructuring Plan, the Company relocated the corporate headquarters and subsequently entered into a series of sublease agreements with tenants to occupy a portion of the vacated space. These subleases expired in June and July 2013.
	In February 2012, the Company purchased the two office buildings located at 2000 and 2100 Seaport Boulevard for approximately $148.6 million in cash, which reflects a purchase price of $153.2 million less a rent credit of $4.6 million. As a result of the transaction, the Company no longer has any further commitments relating to the original lease agreements. The purchase of the buildings discharges the Company's future lease obligations that were previously accounted for under the 2001 and 2004 Restructuring Plans. The transaction has been accounted for as a purchase of an asset that was previously subject to an operating lease in accordance with ASC 840, Leases. The Company was the sole lessee of both of these buildings. During the first quarter of 2012 the Company reversed the existing accrued facilities restructuring liability of $20.6 million and recorded a corresponding facilities restructuring benefit on the Condensed Consolidated Statement of Income in accordance with ASC 420, Exit or Disposal Cost Obligations. The Company also recorded a charge of approximately $21.2 million representing the cost to terminate the operating lease included in facility lease termination costs, net in the Condensed Consolidated Statements of Income. The Company relocated its corporate headquarters to 2000 and 2100 Seaport Boulevard in the third quarter of 2013.
	2004 Restructuring Plan
	In October 2004, the Company announced a restructuring plan (“2004 Restructuring Plan”) related to the December 2004 relocation of the Company’s corporate headquarters within Redwood City, California. In 2005, the Company subleased the available space at 2000 and 2100 Seaport Boulevard under the 2004 Restructuring Plan. The Company recorded restructuring charges of approximately $103.6 million, consisting of $21.6 million in leasehold improvement and asset write-offs and $82.0 million related to estimated facility lease losses.
	2001 Restructuring Plan
	During 2001, the Company announced a restructuring plan (“2001 Restructuring Plan”) and recorded restructuring charges of approximately $12.1 million, consisting of $1.5 million in leasehold improvement and asset write-offs and $10.6 million related to the consolidation of excess leased facilities in the San Francisco Bay Area and Texas. During 2002, the Company recorded additional restructuring charges of approximately $17.0 million, consisting of $15.1 million related to estimated facility lease losses and $1.9 million in leasehold improvement and asset write-offs. The Company calculated the estimated costs for the additional restructuring charges based on current market information and trend analysis of the real estate market in the respective area. In December 2004, the Company recorded additional restructuring charges of $9.0 million related to estimated facility lease losses. In 2005, the Company subleased the available space at the 2000 and 2100 Seaport Boulevard under the 2001 Restructuring Plan through May 2013, which was subsequently subleased until July 2013 under a December 2007 sublease agreement.
	For the three months ended March 31, 2012, prior to the purchase of the Company's former corporate headquarters, the Company recorded $0.1 million of restructuring charges related to the 2004 Restructuring Plan. These charges consist of accretion charges and amortization of tenant improvements and are included in facilities restructuring charges on the Condensed Consolidated Statement of Income. Net cash payments for the three months ended March 31, 2012 for facilities included in the 2004 and 2001 Restructuring Plans amounted to $2.4 million and $0.3 million, respectively. There were no further charges after the close of the first quarter of 2012, and no accrued facilities restructuring charges recorded as of September 30, 2013.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The Company's effective tax rates were 62% and 39% for the three months ended September 30, 2013 and 2012, respectively, and 41% and 33% for the nine months ended September 30, 2013 and 2012, respectively. The higher tax rates for the three and nine months ended September 30, 2013 were primarily attributable to acquisition integration-related income tax expenses incurred during the third quarter. These acquisition integration-related income tax expenses, together with non-deductible share-based compensation, state income taxes, nondeductible acquisition related costs, and the accrual of reserves related to uncertain tax positions, were partially offset by benefits of certain earnings from operations in lower-tax jurisdictions throughout the world, the impact of the domestic manufacturing deduction pursuant to Section 199 of the Internal Revenue Code, and the recognition of the 2012 and 2013 federal research and development credits. The Company's effective annual tax rate will continue to be very sensitive to the geographic mix of earnings. The effective tax rate for the three and nine months ended September 30, 2012 differed from the federal statutory rate of 35% primarily due to benefits of certain earnings from operations in lower-tax jurisdictions throughout the world, the impact of the domestic manufacturing deduction pursuant to Section 199 of the Internal Revenue Code, and the benefit of foreign tax credits partially offset by non-deductible share-based compensation, state income taxes, non-deductible acquisition related costs, and the accrual of reserves related to uncertain tax positions. As of September 30, 2013, the Company has not provided for residual U.S. taxes in any of these lower-tax jurisdictions since it intends to indefinitely reinvest the net undistributed earnings of its foreign subsidiaries offshore.
	ASC 740, Income Taxes, provides for the recognition of deferred tax assets if realization of such assets is more likely than not. In assessing the need for any additional valuation allowance in the quarter ended September 30, 2013, the Company considered all available evidence both positive and negative, including historical levels of income, legislative developments, expectations and risks associated with estimates of future taxable income, and ongoing prudent and feasible tax planning strategies. As a result of this analysis for the quarter ended September 30, 2013, consistent with prior periods, it was considered more likely than not that the Company's non-share-based payments related deferred tax assets would be realized except for any increase to the deferred tax asset related to the California research and development credit and certain operating losses incurred outside of the United States in the current year. A valuation allowance has been recorded against this portion of the credit, even though this attribute has an indefinite life. In addition, the Company recorded a valuation allowance related to the deferred tax asset that is attributable to the losses incurred outside of the United States in the current year. The remaining valuation allowance is primarily related to deferred tax assets that were created through the benefit from stock option deductions on a “with” and “without” basis and recorded on the balance sheet with a corresponding valuation allowance prior to the Company’s adoption of ASC 718, Stock Compensation. Pursuant to ASC 718-740-25-10, the benefit of these deferred tax assets will be recorded in stockholders’ equity when they are utilized on an income tax return to reduce the Company’s taxes payable, and as such, they will not impact the Company’s effective tax rate.
	The unrecognized tax benefits related to ASC 740, if recognized, would impact the income tax provision by $21.6 million and $17.9 million as of September 30, 2013 and 2012, respectively. The Company has elected to include interest and penalties as a component of income tax expenses. Accrued interest and penalties as of September 30, 2013 and 2012 were approximately $2.8 million and $2.6 million, respectively. As of September 30, 2013, the gross unrecognized tax benefit was approximately $24.5 million.
	The Company files U.S. federal income tax returns as well as income tax returns in various states and foreign jurisdictions. The Company has been informed by certain state and foreign taxing authorities that it was selected for examination. Most state and foreign jurisdictions have three to six open tax years at any point in time. The field work for certain state and foreign audits has commenced and is at various stages of completion as of September 30, 2013.
	Although the outcome of any tax audit is uncertain, the Company believes that it has adequately provided in its financial statements for any additional taxes that it may be required to pay as a result of such examinations. The Company regularly assesses the likelihood of outcomes resulting from these examinations to determine the adequacy of its provision for income taxes, and believes its current reserve to be reasonable. If tax payments ultimately prove to be unnecessary, the reversal of these tax liabilities would result in tax benefits in the period that the Company had determined such liabilities were no longer necessary. However, if an ultimate tax assessment exceeds its estimate of tax liabilities, an additional tax provision might be required.

Net_Income_per_Common_Share

Net Income per Common Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Net Income per Common Share	'
	Net Income per Common Share
	The following table sets forth the calculation of basic and diluted net income per share for the three and nine months ended September 30, 2013 and 2012 (in thousands, except per share amounts):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Net income	$	10,404	$	15,501	$	46,477	$	62,116
	Weighted-average shares of common stock used to compute basic net income per share (excluding unvested restricted stock)	108,305		108,091		108,039		107,957
	Effect of dilutive common stock equivalents:
	Dilutive effect of unvested restricted stock units	312		273		305		384
	Dilutive effect of employee stock options	2,884		3,412		3,028		4,177
	Shares used in computing diluted net income per common share	111,501		111,776		111,372		112,518
	Basic net income per common share	$	0.1	$	0.14	$	0.43	$	0.58
	Diluted net income per common share	$	0.09	$	0.14	$	0.42	$	0.55
	Weighted average stock options and restricted stock units excluded from calculation due to anti-dilutive effect	5,976		4,790		5,932		3,412

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Lease Obligations
	In February 2000, the Company entered into lease agreements for two office buildings located at 2000 and 2100 Seaport Boulevard in Redwood City, California, which the Company occupied from August 2001 through December 2004 as its former corporate headquarters. These lease agreements expired in July 2013. As a result of the 2004 Restructuring Plan, the Company relocated the corporate headquarters and subsequently entered into a series of sublease agreements with tenants to occupy a majority of the vacated space. The majority of the subleases expired in June and July 2013. In February 2012, the Company purchased these two buildings for approximately $148.6 million in cash, which reflects a purchase price of $153.2 million less a rent credit of $4.6 million.
	In December 2004, the Company relocated its corporate headquarters within Redwood City, California and entered into a new lease agreement for two buildings at 100 and 200 Cardinal Way. The lease term, including executed renewal terms, started in December 2004 and expires in December 2013. In the third quarter of 2013, the Company relocated its corporate headquarters to 2000 and 2100 Seaport Boulevard. As a result of the relocation, the Company recognized the anticipated rental expense for the remainder of the lease term of 100 and 200 Cardinal Way.
	The Company leases certain office facilities under various non-cancelable operating leases, which expire at various dates through 2021 and require the Company to pay operating costs, including property taxes, insurance, and maintenance.
	Future minimum lease payments as of September 30, 2013 under non-cancelable operating leases with original terms in excess of one year are summarized as follows (in thousands):
		Operating
		Leases
	Remaining 2013	$	2,255
	2014	8,600
	2015	8,441
	2016	5,921
	2017	4,225
	Thereafter	7,186
	Total future minimum operating lease payments	$	36,628
	Warranties
	The Company generally provides a warranty for its software products and services to its customers for a period of three to six months. The Company’s software products’ media are generally warranted to be free from defects in materials and workmanship under normal use, and the products are also generally warranted to substantially perform as described in certain Company documentation and the product specifications. The Company’s services are generally warranted to be performed in a professional manner and to materially conform to the specifications set forth in a customer’s signed contract. In the event there is a failure of such warranties, the Company generally will correct or provide a reasonable work-around or replacement product. To date, the Company’s product warranty expense has not been significant. The warranty accrual as of September 30, 2013 and December 31, 2012 was not material.
	Indemnification
	The Company sells software licenses and services to its customers under contracts, which the Company refers to as the License to Use Informatica Software (“License Agreement”). Each License Agreement contains the relevant terms of the contractual arrangement with the customer and generally includes certain provisions for indemnifying the customer against losses, expenses, liabilities, and damages that may be awarded against the customer in the event the Company’s software is found to infringe upon a patent, copyright, trademark, or other proprietary right of a third party. The License Agreement generally limits the scope of and remedies for such indemnification obligations in a variety of industry-standard respects, including but not limited to certain time and scope limitations and a right to replace an infringing product with a non-infringing product.
	The Company believes its internal development processes and other policies and practices limit its exposure related to the indemnification provisions of the License Agreement. In addition, the Company requires its employees to sign a proprietary information and inventions agreement, which assigns the rights to its employees’ development work to the Company. To date, the Company has not had to reimburse any of its customers for any losses related to these indemnification provisions, and no material claims against the Company are outstanding as of September 30, 2013. For several reasons, including the lack of prior indemnification claims and the lack of a monetary liability limit for certain infringement cases under the License Agreement, the Company cannot determine the maximum amount of potential future payments, if any, related to such indemnification provisions.
	As permitted under Delaware law, the Company has agreements whereby the Company indemnifies its officers and directors for certain events or occurrences while the officer or director is, or was serving, at our request, in such capacity. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has director and officer insurance coverage that reduces the Company's exposure and enables the Company to recover a portion of any future amounts paid. The Company believes the estimated fair value of these indemnification agreements in excess of applicable insurance coverage is minimal.
	The Company accrues for loss contingencies when available information indicates that it is probable that an asset has been impaired or a liability has been incurred and the amount of the loss can be reasonably estimated in accordance with ASC 450, Contingencies.
	Derivative Financial Instruments
	The Company uses derivative instruments to manage its exposure to fluctuations in certain foreign currency exchange rates which exist as part of ongoing business operations. See Note 1. Summary of Significant Accounting Policies, Note 5. Accumulated Other Comprehensive Income (Loss), and Note 6. Derivative Financial Instruments of Notes to Condensed Consolidated Financial Statements for a further discussion.
	Litigation
	The Company is a party to various legal proceedings and claims arising from the normal course of its business activities, including proceedings and claims related to patents and other intellectual property related matters. The Company reviews the status of each matter and records a provision for a liability when it is considered both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These provisions are reviewed quarterly and adjusted as additional information becomes available. If both of the criteria are not met, the Company assesses whether there is at least a reasonable possibility that a loss, or additional losses, may be incurred. If there is a reasonable possibility that a material loss may be incurred, the Company discloses the estimate of the possible loss, range of loss, or a statement that such an estimate cannot be made.
	Litigation is subject to inherent uncertainties. Were an unfavorable outcome to occur, there exists the possibility of a material adverse impact on the Company's financial position and results of operation for the period in which the unfavorable outcome occurred, and potentially in future periods.

Significant_Customer_Informati

Significant Customer Information and Segment Information	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Significant Customer Information and Segment Information	'
	Significant Customer Information and Segment Information
	The Company is organized and operates in a single segment:  the design, development, marketing, and sales of software solutions. The Company’s chief operating decision maker is its Chief Executive Officer, who reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance. The Company markets its products and services in the United States and in foreign countries through its direct sales force and indirect distribution channels.
	No customer accounted for more than 10% of revenue in the three and nine months ended September 30, 2013 and 2012. At September 30, 2013 and December 31, 2012, no customer accounted for more than 10% of the accounts receivable balance. North America revenues include the United States and Canada. Revenue from international customers (defined as those customers outside of North America) accounted for 30% and 29% of total revenues in the third quarter of 2013 and 2012, respectively, and 32% of total revenues for both of the nine-month periods ended September 30, 2013 and 2012.
	Total revenue by geographic region is summarized as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Revenues:
	North America	$	164,930	$	134,613	$	453,866	$	389,587
	Europe, the Middle East, and Africa	50,435		37,705		150,577		125,456
	Other	20,029		18,000		67,690		61,787
	Total revenues	$	235,394	$	190,318	$	672,133	$	576,830
	Property and equipment, net by geographic region are summarized as follows (in thousands):
		September 30,		December 31,
		2013		2012
	Property and equipment, net:
	North America	$	142,782	$	135,388
	Europe, the Middle East, and Africa	3,202		3,395
	Other	4,788		6,691
	Total property and equipment, net	$	150,772	$	145,474

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]	'
Acquisitions	'
	Acquisitions
	Acquisition during the nine months ended September 30, 2013:
	In February 2013, the Company acquired Active Endpoints, Inc. (“Active Endpoints”), a privately-held company, for approximately $10.0 million in cash. Active Endpoints designs, markets, and supports on-premise and cloud based process automation software solutions. Total assets acquired and liabilities assumed was approximately $10.0 million of which approximately $7.1 million was allocated to goodwill, $3.8 million was allocated to identifiable intangible assets, and $0.9 million to net liabilities assumed. The goodwill is not deductible for tax purposes.
	Approximately $1.5 million of the consideration otherwise payable to former Active Endpoints stockholders was placed into an escrow and held as partial security for certain indemnification obligations. The escrow fund will remain in place until May 2014.
	Acquisitions in 2012:
	Heiler Software AG
	In November 2012, the Company acquired a majority interest in the shares of Heiler Software AG ("Heiler"), a publicly-traded German company, at the end of the initial acceptance period of the takeover offer. The Company purchased the majority interest at a price of 7.04 Euro per share in cash, or approximately $101.9 million. Heiler provides enterprise product information management, master data management and procurement solutions that enable retailers, distributors and manufacturers to manage product information across channels and data sources. As of December 31, 2012, the Company held approximately 97.7% of the outstanding shares of Heiler. During December 2012 and the first half of 2013, the Company acquired other shareholders' interest in Heiler for approximately $6.8 million, for total cash consideration of approximately $108.7 million. The squeeze-out of the remaining shareholders was effective in the second quarter of 2013, increasing the Company's ownership in Heiler to 100 percent.
	The fair value of the noncontrolling interest in Heiler at the acquisition date was $2.9 million. The valuation techniques and significant inputs used to measure the fair value of the noncontrolling interest included quoted market prices.
	The following table summarizes the fair value of assets acquired and liabilities assumed at the acquisition date (in thousands):
	Net tangible assets	$	16,400
	Identifiable intangible assets:
	Developed and core technology	16,586
	Customer relationships	5,339
	Contract backlog	648
	Trade names	298
	In-process research and development	3,784
	Noncontrolling interest	(2,861		)
	Total identifiable net assets	40,194
	Goodwill	61,660
	Total cash consideration	$	101,854
	During the first quarter of 2013, the Company recorded $2.8 million of additional accrued liabilities. The allocation of the purchase price consideration was based upon a preliminary valuation and the Company's estimates and assumptions are subject to change as the Company obtains additional information for estimates within the measurement period (up to one year from the acquisition date). The primary areas of the preliminary purchase price allocation that are not yet finalized are amounts for income tax assets and liabilities. The goodwill is not deductible for tax purposes.
	Other Acquisitions in 2012
	In addition, during 2012 the Company acquired Data Scout Solutions Group Limited and TierData, Inc., both of which were privately-held companies, for an aggregate consideration of approximately $12.0 million in cash. Total assets acquired and liabilities assumed was approximately $15.0 million of which approximately $3.9 million was allocated to identifiable intangible assets, $3.9 million to net liabilities assumed, and $15.0 million was allocated to goodwill, which is partially deductible for tax purposes. Total acquiree transaction related costs and other liabilities was approximately $1.9 million, and include legal, accounting, and consulting fees as of the date of the acquisitions.
	Approximately $2.4 million of the consideration otherwise payable to former shareholders was held as partial security for certain indemnification obligations, and will be held back for payment until March 2014.
	At the time of these two acquisitions, the Company was obligated to pay up to an additional $6.0 million for certain variable and deferred earn-out payments based upon the achievement of certain performance targets. The Company determined the fair market value of these earn-outs based on probability analysis. The fair market value and gross amount of these earn-out payments were $4.9 million and $6.0 million, respectively. The fair value measurement is based on significant inputs not observed in the market and thus represents a Level 3 measurement, which reflects the Company's own assumptions in measuring fair value. The Company paid $0.2 million in earn-out payments during the year ended December 31, 2012, and $0.5 million and $1.3 million for the three and nine months ended September 30, 2013, respectively. The fair value of the contingent consideration liability associated with these earn-outs was $3.6 million as of September 30, 2013.
	The Company's business combinations completed during the nine months ended September 30, 2013 and 2012 did not have a material impact on the Company's condensed consolidated financial statements, and therefore pro forma disclosures have not been presented.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Accounting	'
	Basis of Presentation
	The accompanying condensed consolidated financial statements of Informatica Corporation (“Informatica,” or the “Company”) have been prepared in conformity with generally accepted accounting principles (“GAAP”) in the United States of America. However, certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed, or omitted, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In the opinion of management, the financial statements include all normal and recurring adjustments that are necessary to fairly present the results of the interim periods presented. All of the amounts included in this Quarterly Report on Form 10-Q related to the condensed consolidated financial statements and notes thereto as of and for the three and nine months ended September 30, 2013 and 2012 are unaudited. The interim results presented are not necessarily indicative of results for any subsequent interim period, the year ending December 31, 2013, or any other future period.
	The preparation of the Company's condensed consolidated financial statements in conformity with GAAP requires management to make certain estimates, judgments, and assumptions. The Company believes that the estimates, judgments, and assumptions upon which it relies are reasonable based on information available at the time that these estimates, judgments, and assumptions are made. These estimates, judgments, and assumptions can affect the reported amounts of assets and liabilities as of the date of the financial statements as well as the reported amounts of revenues and expenses during the periods presented. To the extent there are material differences between these estimates and actual results, Informatica's financial statements would be affected. In many cases, the accounting treatment of a particular transaction is specifically dictated by GAAP and does not require management's judgment in its application. There are also instances where management's judgment in selecting an available alternative would not produce a materially different result.
	The condensed consolidated financial statements include the accounts of the Company and its wholly-owned and majority-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
	In October 2012, the Company announced its decision to make a voluntary public takeover offer to acquire all the outstanding shares of Heiler Software AG ("Heiler"). In November 2012, the Company acquired a majority interest in the shares of Heiler at the end of the initial acceptance period of the takeover offer. The squeeze-out of the remaining shareholders was effective in the second quarter of 2013, increasing the Company's ownership in Heiler to 100 percent. The noncontrolling interest position is reported as a separate component of consolidated equity from the equity attributable to the Company's stockholders for the period ended December 31, 2012. The noncontrolling interest in the Company's net income was not significant to consolidated results for the nine months ended September 30, 2013 and therefore has been included as a component of other income (expense), net in the condensed consolidated statements of income.
	These unaudited, condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and notes thereto for the year ended December 31, 2012 included in the Company's Annual Report on Form 10-K filed with the SEC. The consolidated balance sheet as of December 31, 2012 has been derived from the audited consolidated financial statements of the Company. The Company's significant accounting policies are described in Note 2 to the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2012.
Reclassification of Prior Period Balances	'
	Certain reclassifications have been made within the condensed consolidated statement of cash flows to conform to the current year presentation. In addition, during the first quarter of 2013, the Company performed a review of the presentation of certain of its revenue categories and adopted a revised presentation, which the Company believes more accurately reflects its evolving product and service offerings. A change was made to rename other revenues to subscription revenues and to present subscription revenues and license revenues as software revenues. Other revenues were previously presented in services revenues. A corresponding change was made to present cost of license revenues and cost of other revenues as cost of software revenues. This change in presentation will not affect total revenues, total cost of revenues or total gross margin. Conforming changes have been made for all prior periods presented.
New Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In December 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2011-11, Balance Sheet (Topic 210) - Disclosures about Offsetting Assets and Liabilities, that requires an entity to disclose additional information about offsetting and related arrangements to enable users of the financial statements to understand the effect of those arrangements on the financial position. In January 2013, the FASB issued ASU 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. ASU 2013-01 clarifies that the scope of ASU 2011-11 applies to derivatives accounted for in accordance with Topic 815, Derivatives and Hedging, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset or subject to an enforceable master netting arrangement or similar agreement. The Company adopted both standards as required on January 1, 2013. Adoption of ASU 2011-11 and ASU 2013-01 did not impact the Company's condensed consolidated financial statements.
	In July 2012, the FASB issued ASU No. 2012-02 Testing Indefinite-Lived Intangible Assets, to simplify how entities test indefinite-lived intangible assets other than goodwill for impairment. These amended standards permit an assessment of qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying value. For assets in which this assessment concludes it is more likely than not that the fair value is more than its carrying value, these amended standards eliminate the requirement to perform quantitative impairment testing as outlined in the previously issued standards. ASU 2012-02 is effective for the Company's impairment test in October 2013 and early adoption is permitted. The Company does not expect its adoption of ASU 2012-02 to have an impact on the condensed consolidated financial statements and disclosures.
	In February 2013, the FASB issued ASU 2013-02, Comprehensive Income (Topic 220) - Reporting of Amounts Reclassified Out Of Accumulated Other Comprehensive Income. ASU 2013-02 requires an entity to present, either parenthetically on the face of its statement where net income is presented or in a note, the effect of significant reclassifications out of accumulated other comprehensive income by the respective income statement line items if the amount being reclassified is required under GAAP to be reclassified in its entirety to net income. For other amounts that are not required under GAAP to be reclassified in their entirety from accumulated other comprehensive income to net income in the same reporting period, an entity is required to cross-reference to the other disclosures where additional details about the effect of the reclassifications are disclosed. The Company adopted ASU 2013-02 prospectively as required on January 1, 2013. The Company has elected to present the required information in a single footnote as this will provide a clearer presentation of the items reclassified from accumulated other comprehensive income to net income. Adoption of this new amended guidance did not have a material impact on the Company's disclosures to its financial statements.
	In March 2013, the FASB issued ASU 2013-05, Foreign Currency Matters (Topic 830): Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity. ASU 2013-05 clarifies that the cumulative translation adjustment (“CTA”) should be released into net income upon the occurrence of certain qualifying events. ASU 2013-05 will be effective for the Company in 2014 with early adoption permitted, which will be applied prospectively. The Company is currently evaluating the impact of its pending adoption of ASU 2013-05 on its consolidated financial statements and disclosures.
	There have been no other changes in our critical accounting policies since the end of 2012.
Fair Value Measurement of Financial Assets and Liabilities	'
	Money Market Funds, Time Deposits, and Marketable Securities
	The Company uses a market approach for determining the fair value of all its Level 1 and Level 2 money market funds, time deposits, and marketable securities.
	To value its money market funds and time deposits, the Company values the funds at $1 stable net asset value, which is the market pricing convention for identical assets that the Company has the ability to access.
	The Company's marketable securities consist of certificates of deposit, commercial paper, corporate notes and bonds, municipal securities, and U.S. government and agency notes and bonds. To value its certificates of deposit and commercial paper, the Company uses mathematical calculations to arrive at fair value for these securities, which generally have short maturities and infrequent secondary market trades. For example, in the absence of any observable transactions, the Company may accrete from purchase price at purchase date to face value at maturity. In the event that a transaction is observed on the same security in the marketplace, and the price on that subsequent transaction clearly reflects the market price on that day, the Company will adjust the price in the system to the observed transaction price and follow a revised accretion schedule to determine the daily price.
	To determine the fair value of its corporate notes and bonds, municipal securities, and U.S. government and agency notes and bonds, the Company uses a third party pricing source for each security. If the market price is not available from the third party source, pricing from the Company's investment custodian is used.
	Foreign Currency Derivatives and Hedging Instruments
	The Company uses the income approach to value the derivatives using observable Level 2 market inputs at the measurement date and standard valuation techniques to convert future amounts to a single present value amount, assuming that participants are motivated but not compelled to transact. Level 2 inputs are limited to quoted prices that are observable for the derivative assets and liabilities. The Company uses mid-market pricing as a practical expedient for fair value measurements. Key inputs for currency derivatives include spot and forward rates, interest rates, and credit derivative market rates. The spot rate for each currency is the same spot rate used for all balance sheet translations at the measurement date and is sourced from the Federal Reserve Bulletin. The following values are interpolated from commonly quoted intervals available from Bloomberg: forward points and the London Interbank Offered Rate ("LIBOR") used to discount and determine the fair value of assets and liabilities. Credit default swap spread curves identified per counterparty at month end in Bloomberg are used to discount derivative assets for counterparty non-performance risk, all of which have terms of twelve months or less. The Company discounts derivative liabilities to reflect the Company’s own potential non-performance risk to lenders and has used the spread over LIBOR on its most recent corporate borrowing rate.
	The counterparties associated with the Company’s foreign currency forward contracts are large credit-worthy financial institutions, and the derivatives transacted with these entities are relatively short in duration; therefore, the Company does not consider counterparty concentration and non-performance to be material risks at this time. Both the Company and the counterparties are expected to perform under the contractual terms of the instruments.
	There were no transfers between Level 1 and Level 2 categories during the three and nine months ended September 30, 2013 and 2012.
	See Note 5. Accumulated Other Comprehensive Income (Loss), Note 6. Derivative Financial Instruments, and Note 12. Commitments and Contingencies of Notes to Condensed Consolidated Financial Statements for a further discussion.
	Acquisition-related Contingent Consideration
	The Company estimated the fair value of the acquisition-related contingent consideration using a probability-weighted discounted cash flow model. This fair value measure was based on significant inputs not observed in the market and thus represented a Level 3 instrument. Level 3 instruments are valued based on unobservable inputs that are supported by little or no market activity and reflect our own assumptions in measuring fair value. There were no transfers into or out of the Level 3 category during the three and nine months ended September 30, 2013 and 2012. The change in fair value of acquisition-related contingent consideration is included in acquisitions and other charges in the condensed consolidated statements of income.

ShareBased_Compensation_Polici

Share-Based Compensation (Policies)	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-Based Compensation	'
	The Company grants restricted stock units (“RSUs”) and stock options under its 2009 Equity Incentive Plan. The Company uses the Black-Scholes-Merton option pricing model to determine the fair value of each option award on the date of grant. The Company uses a blend of average historical and market-based implied volatilities for calculating the expected volatilities for employee stock options, and it uses market-based implied volatilities for its Employee Stock Purchase Plan (“ESPP”). The expected term of employee stock options granted is derived from historical exercise patterns of the options, and the expected term of ESPP is based on the contractual terms. The risk-free interest rate for the expected term of the options and ESPP is based on the U.S. Treasury yield curve in effect at the time of grant.
	The Company records share-based compensation for RSUs and options granted net of estimated forfeiture rates. The Company estimates forfeiture rates at the time of grant and revises those estimates in subsequent periods if actual forfeitures differ from those estimates. The Company uses historical forfeitures to estimate its future forfeiture rates.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]	'
	The following table summarizes financial assets and financial liabilities that the Company measures at fair value on a recurring basis as of September 30, 2013 (in thousands):
					Quoted		Significant		Significant
					Prices in		Other		Unobservable
					Active		Observable		Inputs
					Markets for		Inputs		(Level 3)
					Identical		(Level 2)
		Total			Assets
					(Level 1)
	Assets:
	Money market funds (i)	$	12,551		$	12,551	$	—	$	—
	Time deposits (ii)	18,196			18,196		—		—
	Marketable debt securities (ii)	322,067			—		322,067		—
	Foreign currency derivatives (iii)	4			—		4		—
	Total assets	$	352,818		$	30,747	$	322,071	$	—
	Liabilities:
	Foreign currency derivatives (iv)	$	2,304		$	—	$	2,304	$	—
	Acquisition-related contingent consideration (iv)	3,579			—		—		3,579
	Total liabilities	$	5,883		$	—	$	2,304	$	3,579
	The following table summarizes financial assets and financial liabilities that the Company measures at fair value on a recurring basis as of December 31, 2012 (in thousands):
					Quoted
					Prices in		Significant
					Active		Other		Significant
					Markets for		Observable		Unobservable
					Identical		Inputs		Inputs
		Total			Assets		(Level 2)		(Level 3)
					(Level 1)
	Assets:
	Money market funds (i)	$	18,565		$	18,565	$	—	$	—
	Time deposits (ii)	17,437			17,437		—		—
	Marketable debt securities (ii)	328,041			—		328,041		—
	Total assets	$	364,043		$	36,002	$	328,041	$	—
	Liabilities:
	Foreign currency derivatives (iv)	$	408		$	—	$	408	$	—
	Acquisition-related contingent consideration (v)	9,230			—		—		9,230
	Total liabilities	$	9,638		$	—	$	408	$	9,230
	____________________
	(i)	Included in cash and cash equivalents on the condensed consolidated balance sheets.
	(ii)	Included in short-term investments on the condensed consolidated balance sheets.
	(iii)	Included in prepaid expenses and other current assets on the condensed consolidated balance sheets.
	(iv)	Included in accrued liabilities on the condensed consolidated balance sheets.
	(v)	Included in accrued and other liabilities on the condensed consolidated balance sheets.
Change in Acquisition-Related Contingent Consideration Liability [Table Text Block]	'
	The changes in the acquisition-related contingent consideration liability for the nine months ended September 30, 2013 consisted of the following (in thousands):
		September 30,
		2013
	Beginning balance as of December 31, 2012	$	9,230
	Change in fair value of contingent consideration	(1,981		)
	Payment of contingent consideration	(3,670		)
	Ending balance as of September 30, 2013	$	3,579

Cash_Cash_Equivalents_and_Shor1

Cash, Cash Equivalents, and Short-Term Investments (Tables)	9 Months Ended
	Sep. 30, 2013
Cash, Cash Equivalents, and Short-term Investments [Abstract]	'
Schedule of Cash, Cash Equivalents and Short-term Investments [Table Text Block]	'
	The following table summarizes the Company’s cash, cash equivalents, and short-term investments as of September 30, 2013 (in thousands):
				Gross			Gross			Estimated
		Cost		Unrealized			Unrealized			Fair Value
				Gains			Losses
	Cash	$	267,804	$	—		$	—		$	267,804
	Cash equivalents:
	Money market funds	12,551		—			—			12,551
	Total cash equivalents	12,551		—			—			12,551
	Total cash and cash equivalents	280,355		—			—			280,355
	Short-term investments:
	Certificates of deposit	1,200		—			—			1,200
	Commercial paper	10,663		—			—			10,663
	Corporate notes and bonds	166,424		134			(268		)	166,290
	Federal agency notes and bonds	72,568		56			(53		)	72,571
	Time deposits	18,196		—			—			18,196
	U.S. government notes and bonds	1,999		2			—			2,001
	Municipal notes and bonds	69,248		100			(6		)	69,342
	Total short-term investments	340,298		292			(327		)	340,263
	Total cash, cash equivalents, and short-term investments (i)	$	620,653	$	292		$	(327	)	$	620,618
	____________________
	(i)	Total estimated fair value above included $352.8 million comprised of cash equivalents and short-term investments at September 30, 2013.
	The following table summarizes the Company’s cash, cash equivalents, and short-term investments as of December 31, 2012 (in thousands):
				Gross			Gross			Estimated
		Cost		Unrealized			Unrealized			Fair Value
				Gains			Losses
	Cash	$	171,562	$	—		$	—		$	171,562
	Cash equivalents:
	Money market funds	18,565		—			—			18,565
	Total cash equivalents	18,565		—			—			18,565
	Total cash and cash equivalents	190,127		—			—			190,127
	Short-term investments:
	Certificates of deposit	2,246		3			—			2,249
	Commercial paper	6,294		—			—			6,294
	Corporate notes and bonds	151,133		322			(56		)	151,399
	Federal agency notes and bonds	104,961		128			(10		)	105,079
	Time deposits	17,437		—			—			17,437
	U.S. government notes and bonds	7,094		18			—			7,112
	Municipal notes and bonds	55,922		18			(32		)	55,908
	Total short-term investments	345,087		489			(98		)	345,478
	Total cash, cash equivalents, and short-term investments (i)	$	535,214	$	489		$	(98	)	$	535,605
	____________________
	(i)	Total estimated fair value above included $364.0 million comprised of cash equivalents and short-term investments at December 31, 2012.
Available-for-sale Securities Continuous Unrealized Loss Position, Fair Value [Table Text Block]	'
	The following table summarizes the fair value and gross unrealized losses related to the Company’s short-term investments, aggregated by investment category that have been in a continuous unrealized loss position for less than twelve months, at September 30, 2013 (in thousands):
		Less Than 12 months
				Gross
		Fair		Unrealized
		Value		Losses
	Corporate notes and bonds	$	100,336	$	(264	)
	Federal agency notes and bonds	31,684		(53		)
	Municipal notes and bonds	4,991		(6		)
	Total	$	137,011	$	(323	)
	The following table summarizes the fair value and gross unrealized losses related to the Company’s short-term investments, aggregated by investment category that have been in a continuous unrealized loss position for greater than twelve months, at September 30, 2013 (in thousands):
		Greater Than 12 months
				Gross
		Fair		Unrealized
		Value		Losses
	Corporate notes and bonds	$	2,180	$	(4	)
	Total	$	2,180	$	(4	)
Investments Classified by Contractual Maturity Date [Table Text Block]	'
	The following table summarizes the cost and estimated fair value of the Company’s short-term investments by contractual maturity at September 30, 2013 (in thousands):
		Cost		Fair Value
	Due within one year	$	152,300	$	152,419
	Due in one year to two years	105,671		105,686
	Due after two years	82,327		82,158
	Total	$	340,298	$	340,263

Intangible_Assets_and_Goodwill1

Intangible Assets and Goodwill (Tables)	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Finite-Lived and Acquired Indefinite-Lived Intangible Assets by Major Class [Table Text Block]	'
	The carrying amounts of the intangible assets other than goodwill as of September 30, 2013 and December 31, 2012 are as follows (in thousands, except years):
		September 30, 2013							December 31, 2012							Weighted Average Useful Life
		Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net		(Years)
	Developed and core technology	$	130,291	$	(93,690	)	$	36,601	$	123,221	$	(76,721	)	$	46,500	6
	Other Intangible Assets:
	Customer relationships	41,675		(34,013		)	7,662		40,952		(30,063		)	10,889		6
	All other (i)	17,205		(13,119		)	4,086		17,208		(11,187		)	6,021		11-Apr
	Total other intangible assets	58,880		(47,132		)	11,748		58,160		(41,250		)	16,910
	Total intangible assets subject to amortization	189,171		(140,822		)	48,349		181,381		(117,971		)	63,410
	In-process research and development	—		—			—		3,850		—			3,850		N.A.
	Total intangible assets, net	$	189,171	$	(140,822	)	$	48,349	$	185,231	$	(117,971	)	$	67,260
	____________________
	(i)	All other includes vendor relationships, trade names, covenants not to compete, and patents.
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	'
	As of September 30, 2013, the amortization expense related to identifiable intangible assets in future periods is expected to be as follows (in thousands):
		Acquired		Other			Total
		Technology		Intangible			Intangible
				Assets			Assets
	Remaining 2013	$	5,337	$	1,848		$	7,185
	2014	12,931		4,728			17,659
	2015	8,530		2,094			10,624
	2016	5,006		1,298			6,304
	2017	3,090		862			3,952
	Thereafter	1,707		918			2,625
	Total intangible assets subject to amortization	$	36,601	$	11,748		$	48,349
Schedule of Goodwill [Table Text Block]	'
	The changes in the carrying amount of goodwill for the nine months ended September 30, 2013 are as follows (in thousands):
		September 30,
		2013
	Beginning balance as of December 31, 2012	$	510,121
	Goodwill from acquisitions	7,110
	Subsequent goodwill adjustments	4,893
	Ending balance as of September 30, 2013	$	522,124

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	'
	The following table summarizes the changes in accumulated balances for each component of other comprehensive income (loss) for the three months ended September 30, 2013, net of taxes (in thousands):
			Cumulative Translation Adjustments			Net Unrealized Gain (Loss) on Available-for-Sale Investments				Net Unrealized Loss on Cash Flow Hedges				Total
	Accumulated other comprehensive loss as of June 30, 2013		$	(14,180	)	$	(345	)		$	(1,311	)		$	(15,836	)
	Other comprehensive income (loss):
	Other comprehensive income (loss) before reclassifications, net of tax benefit (expense) of $(317), $(187) and $455		7,370			304				(744		)		6,930
	Net loss reclassified from accumulated other comprehensive income (loss), net of tax benefit of $ —, $12 and $349		—			19			(i)	571			(ii)	590
	Total other comprehensive income (loss), net of tax effect		7,370			323				(173		)		7,520
	Accumulated other comprehensive loss as of September 30, 2013		$	(6,810	)	$	(22	)		$	(1,484	)		$	(8,316	)
	The following table summarizes the changes in accumulated balances for each component of other comprehensive income (loss) for the nine months ended September 30, 2013, net of taxes (in thousands):
			Cumulative Translation Adjustments			Net Unrealized Gain (Loss) on Available-for-Sale Investments				Net Unrealized Loss on Cash Flow Hedges				Total
	Accumulated other comprehensive income (loss) as of December 31, 2012		$	(8,012	)	$	242			$	(260	)		$	(8,030	)
	Other comprehensive income (loss):
	Other comprehensive income (loss) before reclassifications, net of tax benefit (expense) of $(74), $183 and $1,149		1,202			(300		)		(1,875		)		(973		)
	Net loss reclassified from accumulated other comprehensive income (loss), net of tax benefit of $ —, $22 and $398		—			36			(i)	651			(ii)	687
	Total other comprehensive income (loss), net of tax effect		1,202			(264		)		(1,224		)		(286		)
	Accumulated other comprehensive loss as of September 30, 2013		$	(6,810	)	$	(22	)		$	(1,484	)		$	(8,316	)
	____________________
	(i)	Included in other income (expense), net on the condensed consolidated income statements.
	(ii)	Included in operating expenses on the condensed consolidated income statements.

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	'
	The following table reflects the fair value amounts for the foreign exchange contracts designated and not designated as hedging instruments at September 30, 2013 and December 31, 2012 (in thousands):
		September 30, 2013						December 31, 2012
		Fair Value			Fair Value			Fair Value			Fair Value
		Derivative			Derivative			Derivative			Derivative
		Assets			Liabilities			Assets			Liabilities
		(i)			(ii)			(i)			(ii)
	Derivatives designated as hedging instruments	$	4		$	2,046		$	—		$	224
	Derivatives not designated as hedging instruments	—			258			—			184
	Total fair value of derivative instruments	$	4		$	2,304		$	—		$	408
	____________________
	(i)	Included in prepaid expenses and other current assets on the condensed consolidated balance sheets.
	(ii)	Included in accrued liabilities on the condensed consolidated balance sheets.
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]	'
	The effects of derivative instruments designated as cash flow hedges on the accumulated other comprehensive loss and condensed consolidated statements of income for the three and nine months ended September 30, 2013 and 2012 are as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Amount of gain (loss) recognized in other comprehensive income (effective portion)	$	(1,199	)	$	353		$	(3,024	)	$	(65	)
	Amount of loss reclassified from accumulated other comprehensive income to operating expenses (effective portion)	$	(920	)	$	(864	)	$	(1,049	)	$	(1,643	)
	Amount of gain recognized in income on derivatives for the amount excluded from effectiveness testing located in operating expenses	$	151		$	213		$	728		$	1,018
	The Company did not have any ineffective portion of the derivative recorded in the condensed consolidated statements of income.
	The gain (loss) recognized in other income, net for non-designated foreign currency forward contracts for the three and nine months ended September 30, 2013 and 2012 are as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Gain (loss) recognized in interest and other income, net	$	(46	)	$	80		$	(237	)	$	(663	)

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	'
	The fair value of the Company’s share-based awards was estimated based on the following assumptions:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Option grants:
	Expected volatility	41	%		47	%		41 - 43%			39 - 47%
	Weighted-average volatility	41	%		47	%		41	%		43	%
	Expected dividends	—			—			—			—
	Expected term of options (in years)	3.3			3.3			3.3			3.3
	Risk-free interest rate	1.1	%		0.5	%		0.7	%		0.5	%
	ESPP: (i)
	Expected volatility	37	%		53	%		37 - 42%			43 - 53%
	Weighted-average volatility	37	%		53	%		40	%		49	%
	Expected dividends	—			—			—			—
	Expected term of ESPP (in years)	0.5			0.5			0.5			0.5
	Risk-free interest rate	0.1	%		0.1	%		0.1	%		0.1	%
	____________________
	(i)	ESPP purchases are made on the last day of January and July of each year.
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	'
	The allocations of the share-based compensation, net of income tax benefit, for the three and nine months ended September 30, 2013 and 2012 are as follows (in thousands):
		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2013				2012				2013			2012
	Cost of service revenues	$	1,283			$	1,061			$	4,046		$	3,171
	Research and development	5,347				3,861				14,765			10,824
	Sales and marketing	5,002				3,599				15,377			10,078
	General and administrative	3,237				2,435				10,060			7,510
	Total share-based compensation	14,869				10,956				44,248			31,583
	Tax benefit of share-based compensation	(4,238		)		(2,815		)		(12,190		)	(8,066		)
	Total share-based compensation, net of tax benefit	$	10,631			$	8,141			$	32,058		$	23,517

Net_Income_per_Common_Share_Ta

Net Income per Common Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]	'
	The following table sets forth the calculation of basic and diluted net income per share for the three and nine months ended September 30, 2013 and 2012 (in thousands, except per share amounts):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Net income	$	10,404	$	15,501	$	46,477	$	62,116
	Weighted-average shares of common stock used to compute basic net income per share (excluding unvested restricted stock)	108,305		108,091		108,039		107,957
	Effect of dilutive common stock equivalents:
	Dilutive effect of unvested restricted stock units	312		273		305		384
	Dilutive effect of employee stock options	2,884		3,412		3,028		4,177
	Shares used in computing diluted net income per common share	111,501		111,776		111,372		112,518
	Basic net income per common share	$	0.1	$	0.14	$	0.43	$	0.58
	Diluted net income per common share	$	0.09	$	0.14	$	0.42	$	0.55
	Weighted average stock options and restricted stock units excluded from calculation due to anti-dilutive effect	5,976		4,790		5,932		3,412

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	'
	Future minimum lease payments as of September 30, 2013 under non-cancelable operating leases with original terms in excess of one year are summarized as follows (in thousands):
		Operating
		Leases
	Remaining 2013	$	2,255
	2014	8,600
	2015	8,441
	2016	5,921
	2017	4,225
	Thereafter	7,186
	Total future minimum operating lease payments	$	36,628

Significant_Customer_Informati1

Significant Customer Information and Segment Information (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	'
	Total revenue by geographic region is summarized as follows (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Revenues:
	North America	$	164,930	$	134,613	$	453,866	$	389,587
	Europe, the Middle East, and Africa	50,435		37,705		150,577		125,456
	Other	20,029		18,000		67,690		61,787
	Total revenues	$	235,394	$	190,318	$	672,133	$	576,830
	Property and equipment, net by geographic region are summarized as follows (in thousands):
		September 30,		December 31,
		2013		2012
	Property and equipment, net:
	North America	$	142,782	$	135,388
	Europe, the Middle East, and Africa	3,202		3,395
	Other	4,788		6,691
	Total property and equipment, net	$	150,772	$	145,474

Acquisitions_Tables

Acquisitions (Tables) (Heiler Software AG [Member])	9 Months Ended
	Sep. 30, 2013
Heiler Software AG [Member]	'
Business Acquisition [Line Items]	'
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	'
	The following table summarizes the fair value of assets acquired and liabilities assumed at the acquisition date (in thousands):
	Net tangible assets	$	16,400
	Identifiable intangible assets:
	Developed and core technology	16,586
	Customer relationships	5,339
	Contract backlog	648
	Trade names	298
	In-process research and development	3,784
	Noncontrolling interest	(2,861		)
	Total identifiable net assets	40,194
	Goodwill	61,660
	Total cash consideration	$	101,854

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Subscription Revenues and Cost of Revenues) (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2012
Accounting Policies [Abstract]	'	'
Subscription Revenues	$8	$20.40
Cost of Subscription Revenues	$0.60	$2.60

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Financial Assets and Liabilities at Fair Vaue) (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Cash and Cash Equivalents, Fair Value Disclosure	$280,355,000		'	$280,355,000		'	$190,127,000
Fair Value, Transfers Between Level 1 and Level 2, Description and Policy [Abstract]	'		'	'		'	'
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	0		0	0		0	'
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0		0	0		0	'
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0		0	0		0	'
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0		0	0		0	'
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net [Abstract]	'		'	'		'	'
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3	0		0	0		0	'
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3	0		0	0		0	'
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Derivative Asset, Fair Value, Gross Asset	4,000	[1]	'	4,000	[1]	'	0	[1]
Total assets	352,818,000		'	352,818,000		'	364,043,000
Derivative Liability, Fair Value, Gross Liability	2,304,000	[2]	'	2,304,000	[2]	'	408,000	[2]
Business Combination, Contingent Consideration, Liability	3,579,000	[2]	'	3,579,000	[2]	'	9,230,000	[3]
Total liabilities	5,883,000		'	5,883,000		'	9,638,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Derivative Asset, Fair Value, Gross Asset	0	[1]	'	0	[1]	'	0	[1]
Total assets	30,747,000		'	30,747,000		'	36,002,000
Derivative Liability, Fair Value, Gross Liability	0	[2]	'	0	[2]	'	0	[2]
Business Combination, Contingent Consideration, Liability	0	[2]	'	0	[2]	'	0	[3]
Total liabilities	0		'	0		'	0
Stable Net Asset Value Per Share of Money Market Fund and Time Deposits	$1		'	$1		'	$1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Derivative Asset, Fair Value, Gross Asset	4,000	[1]	'	4,000	[1]	'	0	[1]
Total assets	322,071,000		'	322,071,000		'	328,041,000
Derivative Liability, Fair Value, Gross Liability	2,304,000	[2]	'	2,304,000	[2]	'	408,000	[2]
Business Combination, Contingent Consideration, Liability	0	[2]	'	0	[2]	'	0	[3]
Total liabilities	2,304,000		'	2,304,000		'	408,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Derivative Asset, Fair Value, Gross Asset	0	[1]	'	0	[1]	'	0	[1]
Total assets	0		'	0		'	0
Derivative Liability, Fair Value, Gross Liability	0	[2]	'	0	[2]	'	0	[2]
Business Combination, Contingent Consideration, Liability	3,579,000	[2]	'	3,579,000	[2]	'	9,230,000	[3]
Total liabilities	3,579,000		'	3,579,000		'	9,230,000
Time Deposits [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Other Short-term Investments, Fair Value Disclosure	18,196,000		'	18,196,000		'	17,437,000
Time Deposits [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Other Short-term Investments, Fair Value Disclosure	18,196,000	[4]	'	18,196,000	[4]	'	17,437,000	[4]
Time Deposits [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Other Short-term Investments, Fair Value Disclosure	18,196,000	[4]	'	18,196,000	[4]	'	17,437,000	[4]
Time Deposits [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Other Short-term Investments, Fair Value Disclosure	0	[4]	'	0	[4]	'	0	[4]
Time Deposits [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Other Short-term Investments, Fair Value Disclosure	0	[4]	'	0	[4]	'	0	[4]
Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Marketable Debt Securities, Fair Value Disclosure	322,067,000	[4]	'	322,067,000	[4]	'	328,041,000	[4]
Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Marketable Debt Securities, Fair Value Disclosure	0	[4]	'	0	[4]	'	0	[4]
Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Marketable Debt Securities, Fair Value Disclosure	322,067,000	[4]	'	322,067,000	[4]	'	328,041,000	[4]
Available-for-sale Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Marketable Debt Securities, Fair Value Disclosure	0	[4]	'	0	[4]	'	0	[4]
Money Market Funds [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Cash and Cash Equivalents, Fair Value Disclosure	12,551,000		'	12,551,000		'	18,565,000
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Cash and Cash Equivalents, Fair Value Disclosure	12,551,000	[5]	'	12,551,000	[5]	'	18,565,000	[5]
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Cash and Cash Equivalents, Fair Value Disclosure	12,551,000	[5]	'	12,551,000	[5]	'	18,565,000	[5]
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Cash and Cash Equivalents, Fair Value Disclosure	0	[5]	'	0	[5]	'	0	[5]
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]	'		'	'		'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'	'
Cash and Cash Equivalents, Fair Value Disclosure	$0	[5]	'	$0	[5]	'	$0	[5]
[1]	Included in prepaid expenses and other current assets on the condensed consolidated balance sheets.
[2]	Included in accrued liabilities on the condensed consolidated balance sheets.
[3]	Included in accrued and other liabilities on the condensed consolidated balance sheets.
[4]	Included in short-term investments on the condensed consolidated balance sheets.
[5]	Included in cash and cash equivalents on the condensed consolidated balance sheets.

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Foreign Currency Derivatives and Hedging Instruments) (Details) (Foreign Exchange Forward [Member], Cash Flow Hedging [Member])	9 Months Ended
	Sep. 30, 2013
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member]	'
Derivative [Line Items]	'
Maximum Remaining Maturity of Foreign Currency Derivatives	'12 months

Summary_of_Significant_Account6

Summary of Significant Accounting Policies (Change in Acquisition-Related Contingent Consideration Liability) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012
Business Acquisition, Contingent Consideration [Line Items]	'		'
Payment of contingent consideration	($3,670)		($4,440)
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]	'		'
Business Acquisition, Contingent Consideration [Line Items]	'		'
Beginning balance as of December 31, 2012	9,230	[1]	'
Change in fair value of contingent consideration	-1,981		'
Payment of contingent consideration	-3,670		'
Ending balance as of September 30, 2013	$3,579	[2]	'
[1]	Included in accrued and other liabilities on the condensed consolidated balance sheets.
[2]	Included in accrued liabilities on the condensed consolidated balance sheets.

Cash_Cash_Equivalents_and_Shor2

Cash, Cash Equivalents, and Short-Term Investments (Details) (USD $)	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Cash and cash equivalents, at cost	$280,355		$190,127		$237,391	$316,835
Available-for-sale Securities and Other Short-term Investments, Cost Basis	340,298		345,087		'	'
Cash, Available-for-sale Securities and Other Short-term Investments, Cost Basis	620,653		535,214		'	'
Available-for-sale Securities, Gross Unrealized Gain	292		489		'	'
Available-for-sale Securities, Gross Unrealized Losses	-327		-98		'	'
Cash and Cash Equivalents, Fair Value Disclosure	280,355		190,127		'	'
Total Short-term Investments, Fair Value Disclosure	340,263		345,478		'	'
Total Cash, Cash Equivalents, and Short-term Investments, Estimated Fair Value	620,618	[1]	535,605	[2]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	137,011		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-323		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,180		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Accumulated in Investments	-4		'		'	'
Certificates of Deposit [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Available-for-sale Securities, Amortized Cost Basis	1,200		2,246		'	'
Available-for-sale Securities, Gross Unrealized Gain	0		3		'	'
Available-for-sale Securities, Gross Unrealized Losses	0		0		'	'
Available-for-sale Securities, Estimated Fair Value	1,200		2,249		'	'
Commercial Paper, not Included with Cash and Cash Equivalents [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Available-for-sale Securities, Amortized Cost Basis	10,663		6,294		'	'
Available-for-sale Securities, Gross Unrealized Gain	0		0		'	'
Available-for-sale Securities, Gross Unrealized Losses	0		0		'	'
Available-for-sale Securities, Estimated Fair Value	10,663		6,294		'	'
Corporate Notes and Bonds [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Available-for-sale Securities, Amortized Cost Basis	166,424		151,133		'	'
Available-for-sale Securities, Gross Unrealized Gain	134		322		'	'
Available-for-sale Securities, Gross Unrealized Losses	-268		-56		'	'
Available-for-sale Securities, Estimated Fair Value	166,290		151,399		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	100,336		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-264		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,180		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Accumulated in Investments	-4		'		'	'
Federal Agency Notes and Bonds [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Available-for-sale Securities, Amortized Cost Basis	72,568		104,961		'	'
Available-for-sale Securities, Gross Unrealized Gain	56		128		'	'
Available-for-sale Securities, Gross Unrealized Losses	-53		-10		'	'
Available-for-sale Securities, Estimated Fair Value	72,571		105,079		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	31,684		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-53		'		'	'
U.S. Government Notes and Bonds [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Available-for-sale Securities, Amortized Cost Basis	1,999		7,094		'	'
Available-for-sale Securities, Gross Unrealized Gain	2		18		'	'
Available-for-sale Securities, Gross Unrealized Losses	0		0		'	'
Available-for-sale Securities, Estimated Fair Value	2,001		7,112		'	'
Municipal Notes and Bonds [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Available-for-sale Securities, Amortized Cost Basis	69,248		55,922		'	'
Available-for-sale Securities, Gross Unrealized Gain	100		18		'	'
Available-for-sale Securities, Gross Unrealized Losses	-6		-32		'	'
Available-for-sale Securities, Estimated Fair Value	69,342		55,908		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	4,991		'		'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	-6		'		'	'
Time Deposits [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Other Short-term Investments, Cost Basis	18,196		17,437		'	'
Other Short-term Investments, Estimated Fair Value	18,196		17,437		'	'
Cash [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Cash and cash equivalents, at cost	267,804		171,562		'	'
Cash and Cash Equivalents, Fair Value Disclosure	267,804		171,562		'	'
Cash Equivalents [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Cash and cash equivalents, at cost	12,551		18,565		'	'
Cash and Cash Equivalents, Fair Value Disclosure	12,551		18,565		'	'
Money Market Funds [Member]	'		'		'	'
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'		'		'	'
Cash and cash equivalents, at cost	12,551		18,565		'	'
Cash and Cash Equivalents, Fair Value Disclosure	$12,551		$18,565		'	'
[1]	Total estimated fair value above included $352.8 million comprised of cash equivalents and short-term investments at SeptemberB 30, 2013.
[2]	Total estimated fair value above included $364.0 million comprised of cash equivalents and short-term investments at DecemberB 31, 2012.

Cash_Cash_Equivalents_and_Shor3

Cash, Cash Equivalents, and Short-Term Investments (Short-term Investment Maturities) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Cash, Cash Equivalents, and Short-term Investments [Line Items]	'	'
Short-term Investments Maturities, Due within One Year, Cost Basis	$152,300	'
Short-term Investments Maturities, Due within One Year, Fair Value	152,419	'
Available-for-sale Securities, Debt Maturities, Due in One Year to Two Years, Amortized Cost Basis	105,671	'
Available-for-sale Securities, Debt Maturities, Due in One Year to Two Years, Fair Value	105,686	'
Available-for-sale Securities, Debt Maturities, Due after Two Years, Amortized Cost Basis	82,327	'
Available-for-sale Securities, Debt Maturities, Due after Two Years, Fair Value	82,158	'
Short-term Investments Maturities, Total Cost Basis	340,298	345,087
Total Short-term Investments, Fair Value Disclosure	$340,263	$345,478

Intangible_Assets_and_Goodwill2

Intangible Assets and Goodwill (Intangible Assets) (Details) (USD $)

3 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

In Process Research and Development [Member]

In Process Research and Development [Member]

Developed and Core Technology [Member]

Developed and Core Technology [Member]

Other Finite-Lived Intangible Assets [Member]

Other Finite-Lived Intangible Assets [Member]

Customer Relationships [Member]

Customer Relationships [Member]

All Other [Member]

All Other [Member]

All Other [Member]

All Other [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Minimum [Member]

Maximum [Member]

In Process Research and Development [Member]

In Process Research and Development [Member]

Intangible Assets, Net (Excluding Goodwill) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Gross

$189,171,000

'

$189,171,000

'

$181,381,000

'

'

$130,291,000

$123,221,000

$58,880,000

$58,160,000

$41,675,000

$40,952,000

$17,205,000

[1]

$17,208,000

[1]

'

'

'

'

Finite-Lived Intangible Assets, Accumulated Amortization

-140,822,000

'

-140,822,000

'

-117,971,000

'

'

-93,690,000

-76,721,000

-47,132,000

-41,250,000

-34,013,000

-30,063,000

-13,119,000

[1]

-11,187,000

[1]

'

'

'

'

Finite-Lived Intangible Assets, Net

48,349,000

'

48,349,000

'

63,410,000

'

'

36,601,000

46,500,000

11,748,000

16,910,000

7,662,000

10,889,000

4,086,000

[1]

6,021,000

[1]

'

'

'

'

Indefinite-Lived Intangible Assets (Excluding Goodwill)

'

'

'

'

'

0

3,850,000

'

'

'

'

'

'

'

'

'

'

'

'

Intangible Assets, Gross (Excluding Goodwill)

189,171,000

'

189,171,000

'

185,231,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total Intangible Assets, Net

48,349,000

'

48,349,000

'

67,260,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Asset, Useful Life (in years)

'

'

'

'

'

'

'

'6 years

'

'

'

'6 years

'

'

'

'4 years

'11 years

'

'

Amortization of intangible assets and acquired technology

7,500,000

6,600,000

22,851,000

20,854,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

IPR&D acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,800,000

'

IPR&D reclassed to developed technology

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-3,800,000

Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Remaining 2013

7,185,000

'

7,185,000

'

'

'

'

5,337,000

'

1,848,000

'

'

'

'

'

'

'

'

'

2014

17,659,000

'

17,659,000

'

'

'

'

12,931,000

'

4,728,000

'

'

'

'

'

'

'

'

'

2015

10,624,000

'

10,624,000

'

'

'

'

8,530,000

'

2,094,000

'

'

'

'

'

'

'

'

'

2016

6,304,000

'

6,304,000

'

'

'

'

5,006,000

'

1,298,000

'

'

'

'

'

'

'

'

'

2017

3,952,000

'

3,952,000

'

'

'

'

3,090,000

'

862,000

'

'

'

'

'

'

'

'

'

Thereafter

2,625,000

'

2,625,000

'

'

'

'

1,707,000

'

918,000

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Net

$48,349,000

'

$48,349,000

'

$63,410,000

'

'

$36,601,000

$46,500,000

$11,748,000

$16,910,000

$7,662,000

$10,889,000

$4,086,000

[1]

$6,021,000

[1]

'

'

'

'

[1]

All other includes vendor relationships, trade names, covenants not to compete, and patents.

Intangible_Assets_and_Goodwill3

Intangible Assets and Goodwill (Goodwill) (Details) (USD $)	3 Months Ended	9 Months Ended
	Mar. 31, 2013	Sep. 30, 2013	Nov. 28, 2012
Goodwill [Roll Forward]	'	'	'
Beginning balance as of December 31, 2012	$510,121,000	$510,121,000	'
Goodwill from acquisitions	'	7,110,000	'
Subsequent goodwill adjustments	'	4,893,000	'
Ending balance as of September 30, 2013	'	522,124,000	'
Goodwill, Translation Adjustments	'	2,300,000	'
Goodwill, Subsequent Recognition of Deferred Tax Asset	'	-200,000	'
Heiler Software AG [Member]	'	'	'
Goodwill [Roll Forward]	'	'	'
Beginning balance as of December 31, 2012	'	'	61,660,000
Ending balance as of September 30, 2013	'	'	61,660,000
Goodwill, Purchase Accounting Adjustments	$2,800,000	$2,800,000	'

Borrowings_Credit_Agreement_De

Borrowings (Credit Agreement) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 29, 2014	Sep. 29, 2010	Sep. 30, 2013
Line of Credit Facility [Line Items]	'	'	'
Line of Credit Facility, Initiation Date	'	29-Sep-10	'
Line of Credit Facility, Expiration Date	29-Sep-14	'	'
Total Unsecured Revolving Credit Facility	'	$220,000,000	'
Option to request additional commitments on credit facility	'	30,000,000	'
Line of Credit Facility, Maximum Borrowing Capacity	'	250,000,000	'
Line of Credit Facility, Amount Outstanding	'	'	0
Line of Credit Facility, Remaining Borrowing Capacity	'	'	$220,000,000
Line of Credit Facility, Covenant Compliance	'	'	'The Company was in compliance with all covenants under the Credit Agreement as of September 30, 2013.
Minimum [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Line of Credit Facility, Commitment Fee Percentage	'	0.35%	'
Maximum [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Line of Credit Facility, Commitment Fee Percentage	'	0.50%	'
Line of Credit [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Maximum Consolidated Leverage Ratio	'	2.75	'
Minimum Consolidated Interest Coverage Ratio	'	3.5	'
Debt Instrument, Additional Interest Margin for Overdue Principal, Stated Percentage	'	2.00%	'
Debt Instrument, Additional Interest Margin for Other Overdue Amounts, Stated Percentage	'	2.00%	'
Line of Credit [Member] | Base Rate Loan [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Line of Credit, Frequency of Interest Payment (in months)	'	'3 months	'
Line of Credit [Member] | Base Rate Loan [Member] | Base Rate (i) [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Line of Credit Facility, Base Interest Rate Description	'	'JPMorgan Chase Bank, N.A.'s prime rate	'
Line of Credit [Member] | Base Rate Loan [Member] | Base Rate (ii) [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Line of Credit Facility, Base Interest Rate Description	'	'the federal funds rate plus a margin	'
Debt Instrument, Basis Spread on Variable Rate	'	0.50%	'
Line of Credit [Member] | Base Rate Loan [Member] | Base Rate (iii) [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Line of Credit Facility, Base Interest Rate Description	'	'LIBOR for a 1-month interest period plus a margin	'
Maturity of Reference Rate, 1-Month LIBOR (in months)	'	'1 month	'
Debt Instrument, Basis Spread on Variable Rate	'	1.00%	'
Line of Credit [Member] | Base Rate Loan [Member] | Minimum [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Debt Instrument, Basis Spread on Variable Rate	'	1.00%	'
Line of Credit [Member] | Base Rate Loan [Member] | Maximum [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Debt Instrument, Basis Spread on Variable Rate	'	1.75%	'
Line of Credit [Member] | LIBOR Based Loan [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Line of Credit Facility, Reference Rate (LIBOR) Description	'	'1-, 2-, 3-, or 6-month	'
Line of Credit [Member] | LIBOR Based Loan [Member] | Minimum [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Debt Instrument, Basis Spread on Variable Rate	'	2.00%	'
Line of Credit, Frequency of Interest Payment (in months)	'	'1 month	'
Line of Credit [Member] | LIBOR Based Loan [Member] | Maximum [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Debt Instrument, Basis Spread on Variable Rate	'	2.75%	'
Line of Credit, Frequency of Interest Payment (in months)	'	'3 months	'

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'	'		'	'
Accumulated other comprehensive income (loss) at beginning of period	($15,836,000)		'	($8,030,000)		'	'
Other comprehensive income (loss):	'		'	'		'	'
Other comprehensive income (loss), before reclassifications, net of tax	6,930,000		'	-973,000		'	'
Reclassification for net loss from accumulated other comprehensive income (loss), current period, net of tax	590,000		'	687,000		'	'
Other comprehensive income (loss), net of tax effect	7,520,000		'	-286,000		'	'
Accumulated other comprehensive loss, at end of period	-8,316,000		'	-8,316,000		'	'
Other Comprehensive Income (Loss), Tax [Abstract]	'		'	'		'	'
Tax benefit (expense) related to foreign currency translation adjustment	-317,000		-50,000	-74,000		23,000	'
Cumulative translation reclassification adjustment, no tax effect	0		'	0		'	'
Tax benefit (expense) related to available-for-sale investments, before reclassification adjustments	-187,000		-117,000	183,000		-322,000	'
Tax benefit of reclassification adjustment for sale of securities included in net income	12,000		1,000	22,000		0	'
Tax benefit (expense) related to unrealized gain (loss) on cash flow hedges arising during the period	455,000		-135,000	1,149,000		24,000	'
Tax benefit of reclassification adjustment on cash flow hedges included in net income	349,000		328,000	398,000		624,000	'
Other-than-temporary gain or loss reflected in accumulated other comprehensive income (loss)	0		'	0		'	0
Accumulated Translation Adjustment [Member]	'		'	'		'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'	'		'	'
Accumulated other comprehensive income (loss) at beginning of period	-14,180,000		'	-8,012,000		'	'
Other comprehensive income (loss):	'		'	'		'	'
Other comprehensive income (loss), before reclassifications, net of tax	7,370,000		'	1,202,000		'	'
Reclassification for net loss from accumulated other comprehensive income (loss), current period, net of tax	0		'	0		'	'
Other comprehensive income (loss), net of tax effect	7,370,000		'	1,202,000		'	'
Accumulated other comprehensive loss, at end of period	-6,810,000		'	-6,810,000		'	'
Accumulated Net Unrealized Investment Gain (Loss) [Member]	'		'	'		'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'	'		'	'
Accumulated other comprehensive income (loss) at beginning of period	-345,000		'	242,000		'	'
Other comprehensive income (loss):	'		'	'		'	'
Other comprehensive income (loss), before reclassifications, net of tax	304,000		'	-300,000		'	'
Reclassification for net loss from accumulated other comprehensive income (loss), current period, net of tax	19,000	[1]	'	36,000	[1]	'	'
Other comprehensive income (loss), net of tax effect	323,000		'	-264,000		'	'
Accumulated other comprehensive loss, at end of period	-22,000		'	-22,000		'	'
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	'		'	'		'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'	'		'	'
Accumulated other comprehensive income (loss) at beginning of period	-1,311,000		'	-260,000		'	'
Other comprehensive income (loss):	'		'	'		'	'
Other comprehensive income (loss), before reclassifications, net of tax	-744,000		'	-1,875,000		'	'
Reclassification for net loss from accumulated other comprehensive income (loss), current period, net of tax	571,000	[2]	'	651,000	[2]	'	'
Other comprehensive income (loss), net of tax effect	-173,000		'	-1,224,000		'	'
Accumulated other comprehensive loss, at end of period	($1,484,000)		'	($1,484,000)		'	'
[1]	Included in other income (expense), net on the condensed consolidated income statements.
[2]	Included in operating expenses on the condensed consolidated income statements.

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Fair Value) (Details) (Foreign Exchange Forward [Member], USD $)	9 Months Ended
	Sep. 30, 2013		Dec. 31, 2012
Derivatives, Fair Value [Line Items]	'		'
Derivative Asset, Fair Value, Gross Asset	$4,000	[1]	$0	[1]
Derivative Liability, Fair Value, Gross Liability	2,304,000	[2]	408,000	[2]
Derivative, Number of Counterparty	1		'
Cash Flow Hedging [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Maximum Remaining Maturity of Foreign Currency Derivatives	'12 months		'
Derivatives, Notional Amount	20,800,000		23,600,000
Designated as Hedging Instrument [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative Asset, Fair Value, Gross Asset	4,000	[1]	0	[1]
Derivative Liability, Fair Value, Gross Liability	2,046,000	[2]	224,000	[2]
Not Designated as Hedging Instrument [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivative Asset, Fair Value, Gross Asset	0	[1]	0	[1]
Derivative Liability, Fair Value, Gross Liability	258,000	[2]	184,000	[2]
Not Designated as Hedging Instrument [Member] | Long [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Derivatives, Notional Amount	$2,600,000		$2,700,000
[1]	Included in prepaid expenses and other current assets on the condensed consolidated balance sheets.
[2]	Included in accrued liabilities on the condensed consolidated balance sheets.

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Effects on the Accumulated Other Comprehensive Income and Condensed Consolidated Statements of Income) (Details) (Foreign Exchange Forward [Member], Cash Flow Hedging [Member], USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Designated as Hedging Instrument [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of gain (loss) recognized in other comprehensive income to be reclassified during the next 12 months (effective portion)	($1,199)	$353	($3,024)	($65)
Amount of loss reclassified from accumulated other comprehensive income to operating expenses (effective portion)	-920	-864	-1,049	-1,643
Amount of gain recognized in income on derivatives for the amount excluded from effectiveness testing located in operating expenses	151	213	728	1,018
Not Designated as Hedging Instrument [Member]	'	'	'	'
Derivative, Gain (Loss) on Derivative, Net [Abstract]	'	'	'	'
Gain (loss) recognized in interest and other income, net	($46)	$80	($237)	($663)

Stock_Repurchase_Program_Detai

Stock Repurchase Program (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Jul. 31, 2012
Stock Repurchase Program [Abstract]	'	'	'	'	'
Stock Repurchase Program, Additional Authorized Repurchase Amount	'	'	'	'	$100
Stock Repurchased and Retired During Period, Shares	557	915	1,761	1,603	'
Stock Repurchased and Retired During Period, Value	21	29.1	63.9	58.7	'
Stock Repurchase Program, Remaining Amount Authorized to be Repurchased	'	'	$32.10	'	'

ShareBased_Compensation_Valuat

Share-Based Compensation (Valuation Assumptions) (Details)	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Option Grants [Member]	'		'		'		'
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]	'		'		'		'
Expected volatility rate	41.00%		47.00%		'		'
Expected volatility rate, minimum	'		'		41.00%		39.00%
Expected volatility rate, maximum	'		'		43.00%		47.00%
Weighted-average volatility	41.00%		47.00%		41.00%		43.00%
Expected dividends	0.00%		0.00%		0.00%		0.00%
Expected term	'3 years 4 months 4 days		'3 years 3 months 4 days		'3 years 4 months 4 days		'3 years 3 months 4 days
Risk-free interest rate	1.10%		0.50%		0.70%		0.50%
Employee Stock Purchase Plan [Member]	'		'		'		'
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]	'		'		'		'
Expected volatility rate	37.00%	[1]	53.00%	[1]	'		'
Expected volatility rate, minimum	'		'		37.00%	[1]	43.00%	[1]
Expected volatility rate, maximum	'		'		42.00%	[1]	53.00%	[1]
Weighted-average volatility	37.00%	[1]	53.00%	[1]	40.00%	[1]	49.00%	[1]
Expected dividends	0.00%	[1]	0.00%	[1]	0.00%	[1]	0.00%	[1]
Expected term	'6 months	[1]	'6 months	[1]	'6 months	[1]	'6 months	[1]
Risk-free interest rate	0.10%	[1]	0.10%	[1]	0.10%	[1]	0.10%	[1]
[1]	ESPP purchases are made on the last day of January and July of each year.

ShareBased_Compensation_Alloca

Share-Based Compensation (Allocation of Share-Based Compensation Expense) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	$14,869	$10,956	$44,248	$31,583
Tax benefit of share-based compensation	-4,238	-2,815	-12,190	-8,066
Total share-based compensation, net of tax benefit	10,631	8,141	32,058	23,517
Cost of service revenues [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	1,283	1,061	4,046	3,171
Research and development [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	5,347	3,861	14,765	10,824
Sales and marketing [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	5,002	3,599	15,377	10,078
General and administrative [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	$3,237	$2,435	$10,060	$7,510

Facilities_Restructuring_Charg1

Facilities Restructuring Charges Purchase of Land and Buildings (Details) (Corporate Headquarters, Seaport Boulevard [Member], USD $)	1 Months Ended	3 Months Ended	1 Months Ended
In Millions, unless otherwise specified	Feb. 29, 2000	Mar. 31, 2012	Feb. 29, 2012
	buildings		Land and Building [Member]
Property, Plant and Equipment [Line Items]	'	'	'
Number Of Office Buildings	2	'	'
Payments to Acquire Property, Plant, and Equipment	'	'	$148.60
Asset Purchase Price, Gross	'	'	153.2
Rent Credit	'	'	4.6
Cost to Terminate the Operating Lease	'	$21.20	'

Facilities_Restructuring_Charg2

Facilities Restructuring Charges Restructuring Plans and Reserve Activities (Details) (USD $)	3 Months Ended		3 Months Ended		1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Sep. 30, 2013	Mar. 31, 2012	Dec. 31, 2004	Dec. 31, 2004	Mar. 31, 2012	Dec. 31, 2002	Dec. 31, 2001
			Fiscal 2004 Restructuring Plan [Member]	Fiscal 2004 Restructuring Plan [Member]	Fiscal 2001 Restructuring Plan [Member]	Fiscal 2001 Restructuring Plan [Member]	Fiscal 2001 Restructuring Plan [Member]	Fiscal 2001 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]	'	'	'	'	'	'	'	'
Reversal of restructuring reserve on purchase of land and buildings	($20,600,000)	'	'	'	'	'	'	'
Restructuring and Related Activities, Description	'	'	'	'In October 2004, the Company announced a restructuring plan (b2004 Restructuring Planb) related to the December 2004 relocation of the Companybs corporate headquarters within Redwood City, California.	'	'	'	'During 2001, the Company announced a restructuring plan (b2001 Restructuring Planb)
Restructuring Charges Including Asset Retirement Obligations	'	'	'	103,600,000	9,000,000	'	17,000,000	12,100,000
Restructuring Charges, Leasehold Improvement and Asset Write-offs	'	'	'	21,600,000	'	'	1,900,000	1,500,000
Other Restructuring Costs	'	'	100,000	82,000,000	'	'	15,100,000	10,600,000
Net Cash Payment	'	'	2,400,000	'	'	300,000	'	'
Restructuring Reserve	'	$0	'	'	'	'	'	'

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Taxes [Line Items]	'	'	'	'
Effective Income Tax Rate Reconciliation, Percent	62.00%	39.00%	41.00%	33.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	'	35.00%	'	35.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$21.60	$17.90	$21.60	$17.90
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	2.8	2.6	2.8	2.6
Unrecognized Tax Benefits	$24.50	'	$24.50	'
State and Local Jurisdiction, and Foreign Tax Authority [Member] | Minimum [Member]	'	'	'	'
Income Taxes [Line Items]	'	'	'	'
Open Tax Years	'	'	'3 years	'
State and Local Jurisdiction, and Foreign Tax Authority [Member] | Maximum [Member]	'	'	'	'
Income Taxes [Line Items]	'	'	'	'
Open Tax Years	'	'	'6 years	'

Net_Income_per_Common_Share_De

Net Income per Common Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income	$10,404	$15,501	$46,477	$62,116
Weighted-average shares of common stock used to compute basic net income per share (excluding unvested restricted stock)	108,305	108,091	108,039	107,957
Weighted Average Number Diluted Shares Outstanding Adjustment [Abstract]	'	'	'	'
Shares used in computing diluted net income per common share	111,501	111,776	111,372	112,518
Basic net income per common share	$0.10	$0.14	$0.43	$0.58
Diluted net income per common share	$0.09	$0.14	$0.42	$0.55
Weighted average stock options and restricted stock units excluded from calculation due to anti-dilutive effect	5,976	4,790	5,932	3,412
Restricted Stock Units (RSUs) [Member]	'	'	'	'
Weighted Average Number Diluted Shares Outstanding Adjustment [Abstract]	'	'	'	'
Dilutive effect of incremental common shares	312	273	305	384
Option Grants [Member]	'	'	'	'
Weighted Average Number Diluted Shares Outstanding Adjustment [Abstract]	'	'	'	'
Dilutive effect of incremental common shares	2,884	3,412	3,028	4,177

Commitments_and_Contingencies_1

Commitments and Contingencies (Lease Commitments) (Details) (USD $)	Sep. 30, 2013	Feb. 29, 2000	Dec. 31, 2004
In Thousands, unless otherwise specified		Corporate Headquarters, Seaport Boulevard [Member]	Corporate Headquarters, Cardinal Way [Member]
		buildings	buildings
Operating Leased Assets [Line Items]	'	'	'
Number Of Office Buildings	'	2	2
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	'	'	'
Operating Leases, Future Minimum Payments Due, Remaining 2013	$2,255	'	'
Operating Leases, Future Minimum Payments, Due in 2014	8,600	'	'
Operating Leases, Future Minimum Payments, Due in 2015	8,441	'	'
Operating Leases, Future Minimum Payments, Due in 2016	5,921	'	'
Operating Leases, Future Minimum Payments, Due in 2017	4,225	'	'
Operating Leases, Future Minimum Payments, Due Thereafter	7,186	'	'
Operating Leases, Total Future Minimum Payments Due	$36,628	'	'

Commitments_and_Contingencies_2

Commitments and Contingencies (Warranty Accrual) (Details)	9 Months Ended
	Sep. 30, 2013
Minimum [Member]	'
Product Liability Contingency [Line Items]	'
Product Warranty Period	'3 months
Maximum [Member]	'
Product Liability Contingency [Line Items]	'
Product Warranty Period	'6 months

Significant_Customer_Informati2

Significant Customer Information and Segment Information (Revenues) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Total revenues	$235,394	$190,318	$672,133	$576,830
North America [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Total revenues	164,930	134,613	453,866	389,587
Outside North America [Member] | Sales [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Portion of International Revenue to Consolidated Revenue	30.00%	29.00%	32.00%	32.00%
EMEA [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Total revenues	50,435	37,705	150,577	125,456
Other [Member]	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'
Total revenues	$20,029	$18,000	$67,690	$61,787

Significant_Customer_Informati3

Significant Customer Information and Segment Information (Long-Lived Assets) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	$150,772	$145,474
North America [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	142,782	135,388
EMEA [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	3,202	3,395
Other [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Property and equipment, net	$4,788	$6,691

Significant_Customer_Informati4

Significant Customer Information and Segment Information (Additional Information) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
	customers	customers	customers	customers	customers
			segment
Segment Reporting Information [Line Items]	'	'	'	'	'
Number of Reportable Segments	'	'	1	'	'
Number of Customers with More Than Ten Percent of Revenues	0	0	0	0	'
Number of Customers with More Than Ten Percent of Accounts Receivable	0	'	0	'	0

Acquisitions_Details

Acquisitions (Details)

9 Months Ended

1 Months Ended

2 Months Ended

3 Months Ended

7 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Feb. 28, 2013

Nov. 28, 2012

Mar. 31, 2013

Jun. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Nov. 28, 2012

Nov. 28, 2012

Nov. 28, 2012

Nov. 28, 2012

Nov. 28, 2012

Nov. 28, 2012

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 10, 2012

Sep. 30, 2013

Sep. 10, 2012

USD ($)

USD ($)

USD ($)

Active Endpoints [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Heiler Software AG [Member]

Series of Individually Immaterial Business Acquisitions 2012 [Member]

Series of Individually Immaterial Business Acquisitions 2012 [Member]

Series of Individually Immaterial Business Acquisitions 2012 [Member]

Series of Individually Immaterial Business Acquisitions 2012 [Member]

Fair Value, Inputs, Level 3 [Member]

Fair Value, Inputs, Level 3 [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

EUR (€)

In-Process Research And Development [Member]

Developed and Core Technology [Member]

Customer Relationships [Member]

Contract Backlog [Member]

Trade Names [Member]

USD ($)

USD ($)

USD ($)

USD ($)

Series of Individually Immaterial Business Acquisitions 2012 [Member]

Series of Individually Immaterial Business Acquisitions 2012 [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Business Combination, Consideration Transferred [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payments to Acquire Businesses, Gross

'

'

'

$10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

$12,000,000

'

'

'

Amount of Consideration Placed into Escrow

'

'

'

1,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount of Consideration Held Back

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,400,000

'

'

'

Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net tangible assets acquired and (liabilities assumed)

'

'

'

-900,000

16,400,000

'

'

'

'

'

'

'

'

'

'

'

'

-3,900,000

'

'

'

Finite-lived intangibles

'

'

'

'

'

'

'

'

'

'

'

16,586,000

5,339,000

648,000

298,000

'

'

'

'

'

'

In-process research and development

'

'

'

'

'

'

'

'

'

'

3,784,000

'

'

'

'

'

'

'

'

'

'

Intangible assets, other than goodwill

'

'

'

3,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

3,900,000

'

'

'

Noncontrolling interest

'

'

'

'

-2,861,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total identifiable net assets

'

'

'

'

40,194,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill

522,124,000

'

510,121,000

7,100,000

61,660,000

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

Total cash consideration

'

'

'

'

101,854,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total assets acquired and liabilities assumed

'

'

'

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

Acquiree's transaction related costs and other accrued liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,900,000

'

'

'

Goodwill, expected tax deductible amount

'

'

'

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill, Purchase Accounting Adjustments

'

'

'

'

'

2,800,000

'

2,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Business Combination, Consideration Transferred

'

'

'

'

101,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business acquisition, share price

'

'

'

'

'

'

'

'

'

€ 7.04

'

'

'

'

'

'

'

'

'

'

'

Equity interest in acquiree, including subsequent acquisition, percentage

'

'

'

'

'

'

100.00%

'

97.70%

'

'

'

'

'

'

'

'

'

'

'

'

Purchase of equity interest in acquiree for step acquisition

'

'

'

'

'

'

6,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total cash consideration and purchase of equity interest in acquiree for step acquisition

'

'

'

'

'

'

108,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business Combination, Assets and Liabilities Arising from Contingencies [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Potential earnout payments, gross amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6,000,000

'

'

Business Combination, Contingent Consideration, Liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,600,000

4,900,000

Payment of contingent consideration

($3,670,000)

($4,440,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

($500,000)

($1,300,000)

($200,000)

'

'

'