Vocus 10-Q 29 Apr 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 24, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Entity Registrant Name	'Vocus, Inc.	'
Entity Central Index Key	'0001329919	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	21,634,587

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$38,878	$34,740
Accounts receivable, net of allowance for doubtful accounts of $234 and $206 at December 31, 2013 and March 31, 2014, respectively	18,826	28,862
Current portion of deferred income taxes	215	271
Prepaid expenses and other current assets	6,160	4,728
Total current assets	64,079	68,601
Property, equipment and software, net	19,326	20,134
Intangible assets, net	11,868	14,805
Goodwill	177,240	177,264
Deferred income taxes, net of current portion	'	105
Other assets	406	471
Total assets	272,919	281,380
Current liabilities:	'	'
Accounts payable	564	1,004
Accrued compensation	5,198	5,895
Accrued expenses	8,519	8,900
Current portion of notes payable and capital lease obligations	121	137
Current portion of deferred revenue	78,357	81,675
Total current liabilities	92,759	97,611
Notes payable and capital lease obligations, net of current portion	1,193	1,218
Other liabilities	6,285	6,371
Deferred income taxes	4,663	4,546
Deferred revenue, net of current portion	2,044	2,842
Total liabilities	106,944	112,588
Commitments and contingencies	'	'
Stockholders' equity:	'	'
Preferred stock, $0.01 par value, 10,000,000 shares authorized; 1,000,000 shares designated as Series A redeemable convertible preferred stock and issued and outstanding at December 31, 2013 and March 31, 2014; no other shares issued and outstanding at December 31, 2013 and March 31, 2014	'	'
Common stock, $0.01 par value, 90,000,000 shares authorized; 21,949,509 and 21,952,447 issued at December 31, 2013 and March 31, 2014, respectively; 20,207,652 and 20,450,457 shares outstanding at December 31, 2013 and March 31, 2014, respectively	219	219
Additional paid-in capital	231,773	227,699
Treasury stock, 1,741,858 and 1,501,991 shares at December 31, 2013 and March 31, 2014, respectively, at cost	-43,252	-42,320
Accumulated other comprehensive loss	-250	-159
Accumulated deficit	-100,005	-94,137
Total stockholders' equity	88,485	91,302
Total liabilities, redeemable convertible preferred stock and stockholders' equity	272,919	281,380
Series A Redeemable Convertible Preferred Stock [Member]	'	'
Redeemable convertible preferred stock:	'	'
Series A redeemable convertible preferred stock, $0.01 par value, 1,000,000 shares designated from authorized preferred stock; issued and outstanding at December 31, 2013 and March 31, 2014	$77,490	$77,490

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Allowance for doubtful accounts	$206	$234
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	'	'
Preferred stock, shares outstanding	'	'
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	90,000,000	90,000,000
Common stock, shares issued	21,952,447	21,949,509
Common stock, shares outstanding	20,450,457	20,207,652
Treasury stock, shares	1,501,991	1,741,858
Series A Redeemable Convertible Preferred Stock [Member]	'	'
Series A redeemable convertible preferred stock, par value	$0.01	$0.01
Series A redeemable convertible preferred stock, shares designated	1,000,000	1,000,000
Series A redeemable convertible preferred stock, shares issued	1,000,000	1,000,000
Series A redeemable convertible preferred stock, shares outstanding	1,000,000	1,000,000

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Income Statement [Abstract]	'	'
Revenues	$45,659	$46,247
Cost of revenues	10,180	9,752
Gross profit	35,479	36,495
Operating expenses:	'	'
Sales and marketing	25,460	26,835
Research and development	3,020	2,998
General and administrative	10,525	12,333
Amortization of intangible assets	1,880	2,020
Total operating expenses	40,885	44,186
Loss from operations	-5,406	-7,691
Other income (expense):	'	'
Interest and other income (expense)	-30	54
Interest expense	-30	-49
Total other income (expense)	-60	5
Loss before provision for income taxes	-5,466	-7,686
Provision for income taxes	402	439
Net loss	($5,868)	($8,125)
Net loss per share:	'	'
Basic and diluted	($0.29)	($0.41)
Weighted average shares outstanding used in computing per share amounts:	'	'
Basic and diluted	20,283,643	19,790,692

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement Of Income And Comprehensive Income [Abstract]	'	'
Net loss	($5,868)	($8,125)
Other comprehensive income (loss), net of taxes:	'	'
Foreign currency translation adjustment	-91	-249
Other comprehensive income (loss), net of taxes	-91	-249
Comprehensive loss	($5,959)	($8,374)

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:	'	'
Net loss	($5,868)	($8,125)
Adjustments to reconcile net loss to net cash provided by operating activities:	'	'
Depreciation and amortization of property, equipment and software	1,452	1,226
Amortization of intangible assets	2,929	3,071
(Gain) loss on disposal of assets	130	'
Stock-based compensation	4,017	3,690
Adjustment to fair value of accrued contingent consideration	'	3,453
Provision for doubtful accounts	108	195
Deferred income taxes	281	186
Changes in operating assets and liabilities:	'	'
Accounts receivable	9,948	7,903
Prepaid expenses and other current assets	-1,354	-11
Other assets	-12	-478
Accounts payable	-442	457
Accrued compensation	-699	-289
Accrued expenses	-388	390
Deferred revenue	-4,170	-719
Other liabilities	-86	-126
Net cash provided by operating activities	5,846	10,823
Cash flows from investing activities:	'	'
Purchases of property, equipment and software	-753	-2,211
Software development costs	-109	-129
Proceeds from disposal of assets	104	'
Sales of available-for-sale securities	'	1,328
Net cash used in investing activities	-758	-1,012
Cash flows from financing activities:	'	'
Repurchases of common stock	-932	-413
Proceeds from the exercise of stock options	27	'
Payments on notes payable and capital lease obligations	-41	-729
Net cash used in financing activities	-946	-1,142
Effect of exchange rate changes on cash and cash equivalents	-4	-444
Net increase in cash and cash equivalents	4,138	8,225
Cash and cash equivalents, beginning of period	34,740	32,107
Cash and cash equivalents, end of period	$38,878	$40,332

Business_Description

Business Description	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Business Description	'
	1	Business Description
	Organization and Description of Business
	Vocus, Inc. (Vocus or the Company) is a provider of cloud marketing and public relations software that enables businesses to acquire and retain customers. The Company offers products and services to help customers attract and engage prospects, capture and keep customers and measure and improve marketing effectiveness. The Company’s integrated suites address the key areas of digital marketing and public relations, including social marketing, search marketing, email marketing and publicity. The Company is headquartered in Beltsville, Maryland with sales and other offices in the United States, Europe and Asia.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	2	Summary of Significant Accounting Policies
	Basis of Presentation
	The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) and include the accounts of Vocus, Inc. and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
	The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014. The consolidated balance sheet at December 31, 2013 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s annual report on Form 10-K for the year ended December 31, 2013 filed with the Securities and Exchange Commission on March 7, 2014.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. On an on-going basis, the Company evaluates its estimates, including, but not limited to, those related to the allowance for doubtful accounts, software development costs, useful lives of property, equipment and software, intangible assets and goodwill, contingent liabilities, self-insurance, revenue recognition, fair value of stock-based awards and income taxes, among others. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities as well as the reported amounts of revenues and expenses during the period. Actual results could differ from these estimates.
	Cash and Cash Equivalents
	The Company considers all highly liquid investments with original maturity dates of three months or less at the time of purchase to be cash equivalents.
	Fair Value Measurements
	The Company measures certain financial assets at fair value pursuant to a fair value hierarchy based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity’s pricing based upon its own market assumptions. The fair value hierarchy consists of the following three levels:
	Level 1		–	Inputs are quoted prices in active markets for identical assets or liabilities.
	Level 2		–	Inputs are quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable and market-corroborated inputs which are derived principally from or corroborated by observable market data.
	Level 3		–	Inputs are derived from valuation techniques in which one or more significant inputs or value drivers are unobservable.
	Long-Lived Assets
	Long-lived assets include property, equipment and software and intangible assets with finite lives. Intangible assets consist of customer relationships, trade names and purchased technology acquired in business combinations. Intangible assets are amortized using the straight-line method over their estimated useful lives ranging from two to seven years. Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable. If an impairment indicator is present, the Company evaluates recoverability by a comparison of the carrying amount of the assets to future undiscounted net cash flows expected to be generated by the assets. If the assets are impaired, the impairment recognized is measured by the amount by which the carrying amount exceeds the estimated fair value of the assets. There were no impairment charges for long-lived assets for the three months ended March 31, 2013 and 2014.
	Goodwill
	Goodwill represents the excess of the cost of an acquired entity over the net fair value of the identifiable assets acquired and liabilities assumed. Goodwill is not amortized, but rather is assessed for impairment at least annually. The Company performs its annual impairment assessment on November 1, or whenever events or circumstances indicate impairment may have occurred. The Company operates under one reporting unit, and as a result, evaluates goodwill impairment based on the fair value of the Company as a whole. The Company did not record any impairment charges for goodwill during the three months ended March 31, 2013 and 2014.
	Foreign Currency and Operations
	The reporting currency for all periods presented is the U.S. dollar. The functional currency for the Company’s foreign subsidiaries is the local currency. The financial statements of these subsidiaries are translated into U.S. dollars using exchange rates in effect at the balance sheet date for assets and liabilities and average exchange rates during the period for revenues and expenses. The resulting translation adjustments are included in accumulated other comprehensive income (loss), a separate component of stockholders’ equity. Transaction gains and losses in currencies other than the functional currency are included in other income (expense) in the consolidated statements of operations. Amounts resulting from foreign currency transactions were not material for the three months ended March 31, 2013 and 2014.
	Accumulated Other Comprehensive Income (Loss)
	Comprehensive income (loss) includes the Company’s net income (loss) as well as other changes in stockholders’ equity that result from transactions and economic events other than those with stockholders. Other comprehensive income (loss) includes foreign currency translation adjustments and net unrealized gains and losses on investments classified as available-for-sale securities. Amounts reclassified out of accumulated other comprehensive income (loss) for the three months ended March 31, 2013 were not material.
	Revenue Recognition
	The Company derives its revenues from subscription arrangements and related services permitting customers to access and utilize the Company’s cloud-based software. The Company also derives revenues from news distribution services sold separately from its subscription arrangements. The Company recognizes revenue when there is persuasive evidence of an arrangement, the service has been provided to the customer, the collection of the fee is probable and the amount of the fee to be paid by the customer is fixed or determinable. The Company allocates consideration to each deliverable in multiple element arrangements based on the relative selling prices and recognizes revenue as the respective services are delivered or performed.
	The Company’s separate units of accounting consist of its subscription services, news distribution services and professional services. The Company’s subscription services generally include access to the Company’s cloud-based software, hosting services, content and content updates and customer support. The Company’s subscription agreements typically are non-cancelable, though customers have the right to terminate their agreements for cause if the Company materially breaches its obligations under the agreement. Subscription agreements do not provide customers the right to take possession of the software at any time.
	The Company also distributes individual news releases to the Internet which are indexed by major search engines and distributed directly to various news sites, journalists and other key constituents. The Company recognizes revenue on a per-transaction basis when the press releases are made available to the public.
	The Company’s professional services primarily consist of data migration, custom development and training. The Company’s cloud-based software does not require significant modification and customization services.
	The Company established vendor-specific objective evidence (VSOE) of the fair value for the selling price for certain of its news distribution services as the selling price for a substantial majority of stand-alone sales fall within a narrow range around the median selling price. The Company determined third-party evidence (TPE) of selling price is not available for any of its services due to differences in the features and functionality compared to competitor’s products. Therefore, the Company uses its estimated selling prices (ESP) for the remaining deliverables by analyzing multiple factors such as historical pricing trends, discounting practices, gross margin objectives and other market conditions.
	Sales and other taxes collected from customers to be remitted to government authorities are excluded from revenues.
	Deferred Revenue
	Deferred revenue consists of payments received from or billings to customers in advance of revenue recognition. Deferred revenue to be recognized in the succeeding twelve month period is included in current deferred revenue with the remaining amounts included in non-current deferred revenue.
	Sales Commissions
	Sales commissions are expensed when a subscription agreement is executed by the customer.
	Stock-Based Compensation
	The Company’s outstanding share-based arrangements include stock option awards, restricted stock awards and restricted stock units. The Company recognizes compensation expense for its stock option and restricted stock awards on a straight-line basis over the requisite service period of the award based on the estimated portion of the award that is expected to vest and applies estimated forfeiture rates based on analyses of historical data, including termination patterns and other factors. The Company recognizes compensation expense for its restricted stock units over an accelerated expense attribution period, which separately recognizes compensation expense for each vesting tranche over its vesting period based on the estimated portion of the award that is expected to vest and applies estimated forfeiture rates based on analyses of historical data, including termination patterns and other factors. Stock options granted have a 10-year term and generally vest annually over a 4-year period. Restricted stock awards generally vest annually over a four-year period. In February 2014, the Company granted restricted stock units to certain members of its executive team which are contingent upon achievement of pre-determined performance-based criteria. The number of units that will vest range from 0% to 200% of the target shares and is also based upon continued employment of the participant over the vesting period which is three years.
	The Company uses the Black-Scholes option pricing model to measure the fair value of stock option awards. The Company uses the daily historical volatility of its stock price over the expected life of the options to calculate the expected volatility. The Company uses a combination of its historical exercise data with expected future exercise patterns using the average midpoint between vesting and the contractual term to determine the expected term of option awards. The risk-free interest rate is based on the rate on U.S. Treasury securities with maturities consistent with the estimated expected term of the awards. The Company has not paid dividends and does not anticipate paying a cash dividend in the foreseeable future and, accordingly, uses an expected dividend yield of zero. The Company uses the quoted closing market price of its common stock on the grant date to measure the fair value of restricted stock awards. The Company estimates the fair value of restricted stock units at the date of grant using the quoted closing market price of its common stock on the grant date and the probability that the specified performance criteria will be met, adjusted for estimated forfeitures. Each quarter the Company updates its assessment of the probability that the specified performance criteria will be achieved and adjusts the estimate of the fair value of the performance-based restricted stock units if necessary.
	Income Taxes
	Income taxes are determined utilizing the asset and liability method whereby deferred tax assets and liabilities are recognized for deductible temporary differences between the respective reported amounts and tax bases of assets and liabilities, as well as for operating loss and tax-credit carryforwards. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized.
	As of December 31, 2013 and March 31, 2014, the Company maintained a full valuation allowance on its U.S. and certain of its foreign deferred tax assets because management determined that it was more likely than not that it will not realize the benefits of its foreign deferred tax assets.
	The Company’s federal and state NOL carryforwards and tax credits are subject to annual limitations under Sections 382 and 383 of Internal Revenue Code. The limitations imposed under Sections 382 and 383 will not preclude the Company from realizing these NOLs and tax credits but may operate to limit their utilization of the NOLs and tax credits in any given tax year in the event that the Company’s federal and state taxable income exceeds the limitation imposed by Sections 382 and 383.
	The Company’s estimates related to liabilities for uncertain tax positions require it to make judgments regarding the sustainability of each uncertain tax position based on its technical merits. If it determines it is more likely than not that a tax position will be sustained based on its technical merits, the Company records the impact of the position in its consolidated financial statements at the largest amount that is greater than fifty percent likely of being realized upon ultimate settlement. The estimates are updated at each reporting date based on the facts, circumstances and information available. The Company is also required to assess at each reporting date whether it is reasonably possible that any significant increases or decreases to its unrecognized tax benefits will occur during the next twelve months. The Company files income tax returns in the U.S. federal jurisdictions and various state and foreign jurisdictions and is subject to U.S. federal, state, and foreign tax examinations for years ranging from 2003 to 2013.
	Earnings Per Share
	Basic net income or loss per share attributable to common stockholders is computed by dividing net income or loss attributable to common stockholders by the weighted average number of common shares outstanding for the period. Nonvested shares of restricted stock and restricted stock units are not included in the computation of basic net income per share until vested. The Company’s outstanding grants of restricted stock do not contain non-forfeitable dividend rights. Diluted net income per share attributable to common stockholders is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. For purposes of this calculation, options to purchase common stock, nonvested shares of restricted stock and restricted stock units and shares of redeemable convertible preferred stock are considered to be common stock equivalents.
	As the Company has issued shares of Series A redeemable convertible preferred stock that participate in dividends with the common stock, the Company is required to apply the two-class method to compute the net income per share attributable to common stockholders. In periods of sufficient earnings, the two-class method assumes an allocation of undistributed earnings to both participating stock classes.
	For the three months ended March 31, 2013 and 2014, the Company incurred net losses and, therefore, the effect of the Company’s outstanding stock options, nonvested shares of restricted stock and restricted stock units and redeemable convertible preferred stock was not included in the calculation of diluted loss per share as the effect would be anti-dilutive. For the three months ended March 31, 2013 and 2014, diluted earnings per share excluded the impact of 3,225,334 and 3,060,396 outstanding stock options, respectively, and 1,005,310 and 1,153,268 nonvested shares of restricted stock, respectively and 1,000,000 shares of Series A redeemable convertible preferred stock as the result would be anti-dilutive. For the three months ended March 31, 2014, diluted earnings per share excluded the impact of 317,000 restricted stock units.
	Segment Data
	The Company’s chief operating decision maker manages the Company’s operations on a consolidated basis for purposes of assessing performance and making operating decisions. Accordingly, the Company reports on its business as one segment.

Cash_Equivalents

Cash Equivalents	3 Months Ended
	Mar. 31, 2014
Cash And Cash Equivalents [Abstract]	'
Cash Equivalents	'
	3	Cash Equivalents
	The components of cash equivalents at December 31, 2013 were as follows (in thousands):
									Fair
									Market
					Unrealized				Value
			Cost		Gains		Losses
	Cash equivalents:
	Money market funds		$	5,302	$	—	$	—	$	5,302
	Certificates of deposit			6,907		—		—		6,907
	Total		$	12,209	$	—	$	—	$	12,209
	The components of cash equivalents at March 31, 2014 were as follows (in thousands):
									Fair
									Market
					Unrealized				Value
			Cost		Gains		Losses
	Cash equivalents:
	Money market funds		$	5,304	$	—	$	—	$	5,304
	Certificates of deposit			6,884		—		—		6,884
	Total		$	12,188	$	—	$	—	$	12,188
	Cash equivalents have original maturity dates of three months or less.

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	4	Fair Value Measurements
	The fair value measurements of the Company’s financial assets and liabilities measured on a recurring basis at December 31, 2013 were as follows (in thousands):
			Total		Level 1		Level 2		Level 3
	Assets:
	Cash equivalents		$	12,209	$	12,209	$	—	$	—
	Total assets measured at fair value		$	12,209	$	12,209	$	—	$	—
	The fair value measurements of the Company’s financial assets and liabilities measured on a recurring basis at March 31, 2014 were as follows (in thousands):
			Total		Level 1		Level 2		Level 3
	Assets:
	Cash equivalents		$	12,188	$	12,188	$	—	$	—
	Total assets measured at fair value		$	12,188	$	12,188	$	—	$	—
	Cash equivalents are classified within Level 1 of the fair value hierarchy since they are valued using quoted market prices or other readily available market information.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets	'
	5	Goodwill and Intangible Assets
	The changes in the carrying amount of goodwill for the three months ended March 31, 2014 were as follows (in thousands):
	Balance at beginning of period		$	177,264
	Effects of foreign currency translation			(24	)
	Balance as of end of period		$	177,240
	Intangible assets at December 31, 2013 consisted of the following (in thousands):
			Weighted-		Gross		Accumulated			Net Carrying
			Average		Carrying		Amortization			Amount
			Amortization		Amount
			Period
	Customer relationships		3.7		$	23,376	$	(14,074	)	$	9,302
	Trade names		5.9			5,695		(5,058	)		637
	Purchased technology		3.1			13,496		(8,630	)		4,866
	Total				$	42,567	$	(27,762	)	$	14,805
	Intangible assets at March 31, 2014 consisted of the following (in thousands):
			Weighted-		Gross		Accumulated			Net Carrying
			Average		Carrying		Amortization			Amount
			Amortization		Amount
			Period
	Customer relationships		3.7		$	23,362	$	(15,816	)	$	7,546
	Trade names		5.9			5,694		(5,188	)		506
	Purchased technology		3.1			13,493		(9,677	)		3,816
	Total				$	42,549	$	(30,681	)	$	11,868
	The Company’s goodwill and intangible assets for certain of its foreign subsidiaries are recorded in their functional currency, which is their local currency, and therefore are subject to foreign currency translation adjustments.
	Amortization expense of intangible assets for the three months ended March 31, 2013 and 2014 was $3.1 million and $2.9 million, respectively. Future expected amortization of intangible assets at March 31, 2014 was as follows (in thousands):
	The remainder of 2014		$	8,788
	2015			2,349
	2016			573
	2017			158
	2018 and thereafter			—
	Total		$	11,868

Debt

Debt	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Debt	'
	6	Debt
	Revolving Credit Facility
	On February 27, 2012, the Company established a $15.0 million revolving credit facility (Revolver) with a major lending institution which is available for use until June 30, 2014. The Revolver is intended to be used for general working capital purposes and to provide increased liquidity and financial flexibility and bears interest equal to the BBA LIBOR Daily Floating Rate plus 2.25%. In addition, the Company pays a monthly fee equal to 0.4% on any unused funds under the Revolver. As collateral for extension of this credit, the Company and certain of its subsidiaries granted security interests in favor of the institution of substantially all of their assets, and the Company pledged the stock of its directly owned domestic subsidiaries and 65% of the shares of its foreign subsidiaries. As of March 31, 2014, there were no outstanding borrowings, however, the Revolver was reduced by the Company’s outstanding letters of credit of $1.2 million. As such, the Company had $13.8 million available to borrow under the Revolver.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Stockholders' Equity	'
	7	Stockholders’ Equity
	Preferred Stock
	The Company’s Certificate of Incorporation authorizes 10,000,000 undesignated shares of preferred stock. The Company’s Board of Directors (Board) is authorized to establish one or more classes or series from the undesignated shares, to designate each share or class or series, and to fix the relative rights and preferences of each class or series, which rights and preferences may be superior to those of any of the common shares. In February 2012, the Board designated 1,000,000 shares of the Company’s authorized preferred stock as Series A convertible preferred stock in connection with the acquisition of iContact. On February 24, 2012, the Company issued 1,000,000 shares of Series A Redeemable Convertible Preferred Stock (Series A Preferred Stock). In May 2013, the Board designated 100,000 shares of the Company’s authorized preferred stock as Series B Junior Participating Preferred Stock (Series B Preferred Stock), however, no shares of Series B Preferred Stock are issued and outstanding.
	Series A Redeemable Convertible Preferred Stock
	In connection with the acquisition of iContact in February 2012, the Company issued 1,000,000 shares of Series A Preferred Stock with a deemed fair value at issuance of $77.5 million. The Company does not adjust the carrying value to the redemption amount of the convertible preferred stock as the carrying amount exceeds the redemption amount. There have been no changes to the recorded amount of the Series A Preferred Stock since the issuance of the shares.
	Each share of the Series A Preferred Stock has a liquidation preference equal to the greater of $77.30 (subject to appropriate adjustment in the event of any stock dividend, stock split, combination, or other similar recapitalization affecting the Series A Preferred Stock) or the value of the shares of common stock that would be issued in respect thereof upon conversion of such share of Series A Preferred Stock. The Series A Preferred Stock does not provide for interest and is entitled to participate in any dividends declared on the Company’s common stock on an as-converted basis. On February 24, 2017, the Company will be required to redeem each issued and outstanding share of the Series A Preferred Stock for $77.30 per share from its legally available funds, or such lesser amount of shares as it may then redeem under Delaware law. Each share of the Series A Preferred Stock is convertible into shares of the Company’s common stock at any time at the option of the holder. For conversions occurring on or before February 24, 2017, each share of Series A Preferred Stock will be convertible into 3.0256 shares of common stock (subject to customary adjustments). On and after February 25, 2017, each share of the Series A Preferred Stock which has not been redeemed will be convertible into 3.3282 shares of common stock (subject to customary adjustments).
	The holders of Series A Preferred Stock vote on an as-converted basis with the common stock, voting together as a single class, provided that the holders of the Series A Preferred Stock are entitled to vote separately as a class on certain matters affecting the Series A Preferred Stock. If any shares of Series A Preferred Stock are outstanding on or after February 24, 2017, the holders of the Series A Preferred Stock will have the right to vote separately as a class on additional actions by the Company related to acquisitions, redemptions, dividends, capital stock, and indebtedness. In addition, for so long as the outstanding shares of Series A Preferred Stock continue to represent at least 5% of the total outstanding shares of the Company’s common stock, calculated assuming the conversion of all outstanding shares of Series A Preferred Stock into shares of common stock, the holders of the Series A Preferred Stock, voting as a separate class, will have the exclusive right to elect one director to the Company’s Board of Directors (Series A Director).
	In connection with the acquisition of iContact, the Company also entered into, on February 24, 2012, an Investor Rights Agreement (Investor Rights Agreement) whereby the holders of the Series A Preferred Stock have the right to nominate a director to the Company’s Board for as long as they hold 5% or more of the Company’s issued and outstanding capital stock (which nominee shall be the Series A Director for so long as the holders of Series A Preferred Stock have the right to elect the Series A Director pursuant to the Certificate of Designation). In addition, subject to the terms and conditions of the Investor Rights Agreement, the holders of the Series A Preferred Stock shall have demand and piggyback registration rights and the right to participate in certain repurchases of common stock by the Company.
	Stockholder Rights Plan
	On May 13, 2013, the Board authorized and declared a dividend distribution of one preferred stock purchase right (Right) for each outstanding share of the Company’s common stock and 3.0256 Rights for each outstanding share of the Company’s Series A Convertible Preferred Stock to stockholders of record at the close of business on May 13, 2013.
	Each Right entitles registered holders to purchase from the Company one one-thousandth of a share of the Company’s Series B Junior Participating Preferred Stock at a price of $46.00 per one one-thousandth of a share, subject to adjustment. The definitive terms of the Rights are set forth in a Rights Agreement, dated May 13, 2013. The Rights will be exercisable only if a person or group acquires 20% or more of the Company’s outstanding common stock (subject to certain exceptions), or if a person or group announces a tender or exchange offer, resulting in beneficial ownership of 20% or more of the outstanding common stock. The Rights also will be exercisable if a person or group that already beneficially owns or has the right to acquire on May 13, 2013, 20% or more of the Company’s outstanding common stock acquires additional shares equal to 1% or more of the Company’s then outstanding common stock (except in the case of a certain stockholder who, under limited circumstances, is permitted to beneficially own more than 20%, but less than 25%, of the Company’s outstanding common stock, subject to certain exceptions).
	The Board can redeem the Rights for $0.0001 per Right at any time prior to the earlier of the occurrence of a “trigger event” or the expiration date. Additionally, prior to an acquisition of 50% or more of the Company’s common stock, the Board may direct the mandatory exchange of the Rights (other than Rights owned by the acquiring person) at an exchange ratio of one newly issued share of common stock for each right.
	The Rights will expire on the earliest of May 13, 2016, 30 days after the Company’s 2014 annual meeting of stockholders if the continuation of the rights plan is not approved by the Company’s stockholders at its 2014 annual meeting, or the time immediately prior to the Effective Time as defined by the Merger Agreement, if not exercised or redeemed. For more information pertaining to the Merger Agreement, please refer to Note 10, Subsequent Events.
	Common Stock Repurchases
	The Board authorized a stock repurchase program for up to $60.0 million of the Company’s shares of common stock. The shares may be purchased from time to time in the open market. The Company did not purchase any shares of its common stock under the stock repurchase program for the three months ended March 31, 2013 and 2014. During the three months ended March 31, 2013 and 2014, the Company repurchased 29,678 and 70,901 shares of restricted stock that were withheld from employees to satisfy the minimum statutory tax withholding obligations of $413,000 and $932,000, respectively, related to the taxable income recognized by these employees upon the vesting of their restricted stock awards.

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock-Based Compensation	'
	8	Stock-Based Compensation
	The following table sets forth the stock-based compensation expense for equity awards recorded in the consolidated statements of operations for the three months ended March 31, 2013 and 2014 (in thousands):
			Three Months Ended
			March 31,
			2013			2014
	Cost of revenues		$	468		$	475
	Sales and marketing			934			1,340
	Research and development			623			494
	General and administration			1,665			1,708
	Total		$	3,690		$	4,017
	Stock Option Awards
	The following weighted-average assumptions were used in calculating stock-based compensation for stock option awards granted during the three months ended March 31, 2013 and 2014:
			Three Months Ended
			March 31,
			2013			2014
	Stock price volatility			58	%		60	%
	Expected term (years)			6			6.6
	Risk-free interest rate			1.1	%		1.8	%
	Dividend yield			0	%		0	%
	The summary of stock option activity for the three months ended March 31, 2014 was as follows:
			Number of			Weighted-			Weighted-		Aggregate
			Options			Average			Average		Intrinsic
						Exercise			Contractual		Value as of
						Price per			Term		March 31,
						Share					2014
											(In thousands)
	Balance outstanding at January 1, 2014			3,205,153		$	15.33
	Granted			15,000			13.35
	Exercised			(2,938	)		9.23
	Forfeited or cancelled			(156,819	)		16.81
	Balance outstanding at March 31, 2014			3,060,396		$	15.26			6.7	$	2,332
	Options vested and expected to vest at March 31, 2014			2,993,502		$	15.29			6.7	$	2,296
	Exercisable at March 31, 2014			1,847,715		$	15.81			5.6	$	1,868
	The weighted-average grant date fair value of stock options granted during the three months ended March 31, 2013 and 2014 was $7.72 and $7.82, respectively. The fair value of stock options that vested during the three months ended March 31, 2013 and 2014 was $3.3 million and $4.7 million, respectively. As of March 31, 2014, $8.3 million of total unrecognized stock-based compensation cost is related to nonvested stock option awards and is expected to be recognized over a weighted-average period of 2.3 years.
	The aggregate intrinsic value represents the difference between the exercise price of the underlying equity awards and the quoted closing price of the Company’s common stock at the last day of each respective quarter multiplied by the number of shares that would have been received by the option holders had all option holders exercised on the last day of each respective quarter. The aggregate intrinsic value of stock options exercised during the three months ended March 31, 2013 and 2014 was not material.
	Restricted Stock Awards
	The summary of restricted stock award activity for the three months ended March 31, 2014 was as follows:
			Number of Shares			Weighted-Average
			Underlying			Grant-date
			Stock Awards			Fair Value
	Balance nonvested at January 1, 2014			937,536		$	15.18
	Awarded			579,750			12.25
	Vested			(310,768	)		15.8
	Forfeited			(53,250	)		16.22
	Balance nonvested at March 31, 2014			1,153,268		$	13.49
	As of March 31, 2014, $14.4 million of total unrecognized stock-based compensation cost is related to nonvested shares of restricted stock and is expected to be recognized over a weighted-average period of 2.8 years.
	Restricted Stock Units
	The summary of restricted stock unit activity for the three months ended March 31, 2014 was as follows:
			Number of Shares			Weighted-Average
			Underlying			Grant-date
			Stock Awards			Fair Value
	Balance nonvested at January 1, 2014			—		$	—
	Awarded			317,000			12.13
	Vested			—			—
	Forfeited			—			—
	Balance nonvested at March 31, 2014			317,000		$	12.13
	As of March 31, 2014, $3.5 million of total unrecognized stock-based compensation cost is related to nonvested shares of restricted stock units and is expected to be recognized over a weighted-average period of 1.9 years.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	9	Commitments and Contingencies
	Leases
	The Company has various non-cancelable operating leases, primarily related to office real estate, that expire through 2023 and generally contain renewal options for up to five years. Lease incentives, payment escalations and rent holidays specified in the lease agreements are accrued or deferred as appropriate as a component of rent expense which is recognized on a straight-line basis over the terms of occupancy. As of March 31, 2014, deferred rent of $773,000 and $4.9 million is included in accrued expenses and other liabilities, respectively. As of March 31, 2014, minimum required payments in future years under these leases are $2.9 million, $4.0 million, $3.9 million, $2.7 million, $2.0 million and $8.6 million in the remainder of 2014 and in the years 2015, 2016, 2017, 2018, 2019 and thereafter, respectively.
	The Company also leases computer and office equipment under non-cancelable capital leases and other financing arrangements that expire through 2017.
	Purchase Commitments
	The Company has entered into agreements with various vendors in the ordinary course of business. As of March 31, 2014, minimum required payments in future years under these arrangements are $5.5 million, $3.4 million and $1.0 million for the remainder of 2014 and in the years 2015 and 2016, respectively.
	Letters of Credit
	As of March 31, 2014, the Company had a total of $1.2 million in letters of credit outstanding substantially in favor of landlords for certain of its office spaces. These letters of credit expire at various dates through May 2023.
	Litigation and Claims
	On January 23, 2014, North Venture Partners, LLC (NVP) filed a complaint that named the Company as a defendant in a lawsuit in the U.S. District Court for the Northern District of California (Civil Action No. C14-0337). The complaint, which was served to the Company on January 27, 2014, alleges that it failed to pay the full amount of the earn-out payment due under an Asset Purchase Agreement dated February 24, 2011 in which the Company acquired certain assets of NVP. NVP’s complaint seeks an award for damages of approximately $6.4 million. This litigation is in its early stages, therefore, neither the outcome of this litigation nor an estimate of a probable loss or any reasonably possible losses are determinable at this time. The Company believes it has meritorious defenses and intends to vigorously defend the lawsuit.
	On April 28, 2014, a purported class action lawsuit was brought against the Company, the members of the Company’s Board of Directors, GTCR Valor Merger Sub, Inc. (Purchaser), GTCR Valor Companies, Inc. (Parent) and GTCR, LLC (GTCR), captioned TLC Foundation L.P. v. Vocus, Inc. et al., which we refer to as the (Delaware action). The Delaware action generally alleges that the individual director defendants breached their fiduciary duties to the Company’s public stockholders in connection with Parent and Purchaser’s proposed acquisition of the Company because, among other things, they allegedly failed to maximize value for the Company’s stockholders, including by allegedly pursuing a conflicted sales process, agreeing to unfair deal protections, failing to adequately consider other potential acquirors, and failing to fully disclose all material information necessary for Company stockholders to make an informed decision regarding the acquisition. The Delaware action also generally alleges that the Company, GTCR, Parent and Purchaser aided and abetted those alleged violations. The plaintiffs purport to bring the Delaware action on behalf of a class of Company stockholders, and seek, among other relief (i) to enjoin the acquisition of the Company by Parent and Purchaser, (ii) to rescind or, alternatively, award damages to the Company’s stockholders to the extent the acquisition has already been implemented, (iii) to require the individual director defendants to disclose all material information relating to the proposed transaction and (iv) to award plaintiff the fees and costs associated with Delaware action. The litigation is in its early stages, therefore, neither the outcome of this litigation nor an estimate of a probable loss or any reasonably possible losses are determinable at this time. The Company believes that the Delaware action is without merit and intends to defend vigorously against all claims asserted.
	The Company from time to time is subject to lawsuits, investigations and claims arising out of the ordinary course of business, including those related to commercial transactions, contracts, government regulation and employment matters. In the opinion of management based on all known facts, all other matters are either without merit or are of such kind, or involve such amounts that would not have a material effect on the financial position or results of operations of the Company if disposed of unfavorably.

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	10	Subsequent Events
	Merger Agreement
	On April 6, 2014, the Company entered into an Agreement and Plan of Merger (Merger Agreement) with GTCR Valor Companies, Inc., a Delaware corporation (Parent), and GTCR Valor Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Parent (Purchaser). Pursuant to the Merger Agreement, and upon the terms and subject to the conditions thereof, Purchaser has agreed (i) to commence a tender offer (such offer, as amended from time to time as permitted by the Merger Agreement, the Offer) to purchase all of the outstanding shares of the Company’s common stock, par value $0.01 per share (Company Common Stock), including the associated rights to purchase Series B Junior Participating Preferred Stock, par value $0.01 per share, of the Company (collectively, the Shares), at a price per Share of $18.00, net to the holder of such Share, in cash, without interest and subject to any applicable tax withholding (the Offer Price) and (ii) following Purchaser’s acceptance of Shares tendered in the Offer, to be merged (the Merger) with and into the Company, with each outstanding share of Company Common Stock (other than shares owned by Purchaser, Parent or its subsidiaries or held in the Company’s treasury and shares as to which appraisal rights have been properly exercised and not withdrawn in accordance with the applicable provisions of the Delaware General Corporation Law) being converted into the right to receive the Offer Price in cash, and the Company surviving the Merger as a wholly owned subsidiary of Parent.
	The Merger Agreement further provides for the acceleration of vesting and cash-out at the Offer Price of (i) all options to acquire shares of Company Common Stock (less the applicable exercise price) and (ii) all restricted stock units with respect to shares of Company Common Stock, in each case outstanding as of the time immediately prior to Purchaser’s acceptance of Shares tendered in the Offer. In addition, under the agreement, shares of restricted Company Common Stock outstanding as of the time immediately prior to Purchaser’s acceptance of Shares tendered in the Offer will vest as of such time and be treated in the Merger in the same manner as shares of Company Common Stock.
	The Company has also granted to Parent and Purchaser an option (Top-up Option), which Purchaser will, in certain circumstances, be permitted to exercise at or after its acceptance of Shares tendered in the Offer, to purchase a number of newly issued shares of Company Common Stock at the Offer Price which, when added to the shares of Company Common Stock already owned by Parent and Purchaser following such acceptance, will constitute 90% of the shares of Company Common Stock then outstanding after giving effect to the issuance of shares pursuant to the Top-up Option. If Purchaser acquires at least 90% of the outstanding shares of Company Common Stock, including through exercise of the Top-up Option, Purchaser is required under the Merger Agreement to complete the Merger through the “short form” procedures available under Delaware law.
	The Board of Directors of the Company approved the Merger Agreement and the transactions contemplated by the agreement, including the Offer and the Merger, and determined that the Merger Agreement and the transactions contemplated by the agreement, including the Offer and the Merger, are fair to, and advisable and in the best interests of the Company and its stockholders, and the Company filed a Solicitation/Recommendation Statement on Schedule 14D-9 with the U.S. Securities and Exchange Commission (SEC) on April 18, 2014 recommending that holders of Company Common Stock tender their Shares into the Offer.
	Purchaser’s acceptance of Shares tendered in the Offer is subject to customary conditions set forth in the Merger Agreement, including without limitation (i) that Company stockholders validly tender (and not properly withdraw) a minimum number of Shares — that number of Shares (without regard to Shares tendered pursuant to guaranteed delivery procedures that have not yet been delivered in settlement or satisfaction of such guarantee) which, together with the number of Shares, if any, then owned, directly or indirectly, by Parent or Purchaser or their respective subsidiaries (which does not include shares of Company Common Stock issuable upon conversion of the Company’s Series A Convertible Preferred Stock contemplated under the Merger Agreement to be purchased by Purchaser) represents at least 90% of the then outstanding shares of Company Common Stock (assuming the purchase of shares of Company Common Stock by Purchaser pursuant to the Top-up Option has occurred and including shares of Company Common Stock issuable upon exercise of Company stock options as to which valid notices of exercise have been received and shares of Company Common Stock have not yet been issued prior to the expiration time of the Offer), (ii) the expiration or termination of the waiting period applicable to the consummation of the Merger under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, (iii) Parent (either directly or through its subsidiaries) having received the required amount of the proceeds of its debt financing or, alternatively, the debt financing lenders having confirmed the availability of the debt financing and (iv) certain conditions relating to Purchaser’s purchase of the outstanding Series A Convertible Preferred Stock from JMI Equity Fund VI, L.P. (JMI) immediately following Purchaser’s acceptance of Shares tendered in the Offer.
	The Company has made customary representations, warranties and covenants in the Merger Agreement, including, without limitation, covenants to provide required information to regulatory agencies, to provide other requested cooperation and assistance in connection with the Merger Agreement and the transactions contemplated by it and to conduct its business in all material respects in the ordinary course consistent with past practice, including not taking certain specified actions, prior to the earliest of the first date on which Purchaser’s designees are elected or appointed to the Company’s Board of Directors pursuant to the Merger Agreement, the consummation of the Merger and the termination of the Merger Agreement. Parent and Purchaser also have made customary representations, warranties and covenants in the Merger Agreement.
	The Company has also agreed not to solicit or initiate discussions with third parties regarding other acquisition proposals regarding the Company and has agreed to certain restrictions on its ability to respond to such proposals, provided that the Company may enter into discussions concerning, or provide confidential information to persons making, certain unsolicited proposals if the Company’s Board of Directors determines that it would be inconsistent with its fiduciary duties not to do so. The Merger Agreement contains certain termination rights for the Company and Parent, including the right of the Company, in certain circumstances, to terminate the Merger Agreement and accept a Superior Proposal, as that term is defined in the Merger Agreement. The Company will be required to pay Parent a termination fee equal to $13 million if, among other reasons, the Merger Agreement is terminated (i) by the Company to enter into an acquisition agreement that constitutes a Superior Proposal or (ii) by Parent because the Board of Directors of the Company adversely changes its recommendation to stockholders to accept the Offer and tender their Shares to Purchaser in the Offer. If the Company terminates the Merger Agreement under certain circumstances, Parent will be required to pay the Company a reverse termination fee equal to $29 million.
	Concurrently with entering into the Merger Agreement, Parent and Purchaser entered into separate tender and support agreements (Support Agreements) with Okumus Fund Management Ltd., Richard Rudman, Chairman and Chief Executive Officer of the Company, and Stephen Vintz, the Company’s Executive Vice President, Chief Financial Officer and Treasurer, together representing 27.7% of the outstanding Shares. Under the Support Agreements, Okumus Fund Management, Mr. Rudman and Mr. Vintz each agreed to tender all of their respective Shares in the Offer.
	Also concurrently with entering into the Merger Agreement, Parent and Purchaser entered into a separate stock purchase, non-tender and support agreement (Series A Purchase Agreement) with JMI pursuant to which Purchaser agreed to purchase, following Purchaser’s acceptance of Shares tendered in the Offer, all of JMI’s shares of the Company’s Series A Convertible Preferred Stock, par value $0.01 per share, including the associated rights to purchase Series B Junior Participating Preferred Stock (Series A Purchase).
	Parent and Purchaser have obtained equity and debt financing commitments which Parent and Purchaser have represented to the Company are sufficient for Purchaser to pay (and Parent to cause Purchaser to pay) the aggregate consideration in respect of the Shares in the Offer, the Series A Purchase and the Merger and all related fees and expenses. GTCR FUND X/A AIV LP (Fund) delivered to Parent a letter dated the date of the Merger Agreement in which the Fund committed, subject to the conditions set forth in the letter, to purchase equity or debt securities of Parent in an aggregate amount of up to $30 million to allow Parent, together with its debt financing, to pay the amounts required to be paid by Parent and Purchaser in connection with the consummation of the Offer, the Series A Purchase and the Merger. The Fund also irrevocably and unconditionally guaranteed the payment of the reverse termination fee and certain indemnification and reimbursement obligations under the Merger Agreement with respect to Parent’s debt financing.
	The foregoing description of the Merger Agreement does not purport to be complete and is qualified in its entirety by reference to the Merger Agreement, a copy of which is attached to this Quarterly Report on Form 10-Q as Exhibit 2.1, and is incorporated into this report by reference.
	Rights Agreement Amendment
	On April 6, 2014, prior to the execution of the Merger Agreement, the Board approved an amendment (Rights Amendment) to the Rights Agreement, dated as of May 13, 2013, by and between the Company and American Stock Transfer & Trust Company, LLC, as rights agent (Rights Agreement). The Rights Amendment, among other things, (i) defines Parent, Purchaser and certain related parties as Exempt Persons, as that term is defined in the Rights Agreement, to the extent that any of them would become an Acquiring Person solely as a result of (A) the execution, delivery or performance of the Merger Agreement and the Series A Purchase Agreement, (B) their acquisition of Company stock as a result of the execution of the Merger Agreement and the Series A Purchase Agreement and (C) the consummation of the transactions contemplated by the Merger Agreement, including the Offer and the Merger and the Series A Purchase; and (ii) provides that none of the approval, execution, delivery or performance of the Merger Agreement and the Series A Purchase Agreement or the consummation of the Offer or the Merger would result in a Stock Acquisition Date or a Distribution Date, as those terms are defined in the Rights Agreement. The Rights Amendment also provides that the Rights Agreement shall expire and terminate immediately prior to the effective time of the Merger.
	The foregoing description of the Rights Amendment does not purport to be complete and is qualified in its entirety by reference to the Rights Amendment, a copy of which is attached to this Quarterly Report on Form 10-Q as Exhibit 4.4, and is incorporated into this report by reference.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) and include the accounts of Vocus, Inc. and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
	The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014. The consolidated balance sheet at December 31, 2013 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s annual report on Form 10-K for the year ended December 31, 2013 filed with the Securities and Exchange Commission on March 7, 2014.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. On an on-going basis, the Company evaluates its estimates, including, but not limited to, those related to the allowance for doubtful accounts, software development costs, useful lives of property, equipment and software, intangible assets and goodwill, contingent liabilities, self-insurance, revenue recognition, fair value of stock-based awards and income taxes, among others. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities as well as the reported amounts of revenues and expenses during the period. Actual results could differ from these estimates.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	The Company considers all highly liquid investments with original maturity dates of three months or less at the time of purchase to be cash equivalents.
Fair Value Measurements	'
	Fair Value Measurements
	The Company measures certain financial assets at fair value pursuant to a fair value hierarchy based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity’s pricing based upon its own market assumptions. The fair value hierarchy consists of the following three levels:
	Level 1	–	Inputs are quoted prices in active markets for identical assets or liabilities.
	Level 2	–	Inputs are quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable and market-corroborated inputs which are derived principally from or corroborated by observable market data.
	Level 3	–	Inputs are derived from valuation techniques in which one or more significant inputs or value drivers are unobservable.
Long-Lived Assets	'
	Long-Lived Assets
	Long-lived assets include property, equipment and software and intangible assets with finite lives. Intangible assets consist of customer relationships, trade names and purchased technology acquired in business combinations. Intangible assets are amortized using the straight-line method over their estimated useful lives ranging from two to seven years. Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable. If an impairment indicator is present, the Company evaluates recoverability by a comparison of the carrying amount of the assets to future undiscounted net cash flows expected to be generated by the assets. If the assets are impaired, the impairment recognized is measured by the amount by which the carrying amount exceeds the estimated fair value of the assets. There were no impairment charges for long-lived assets for the three months ended March 31, 2013 and 2014.
Goodwill	'
	Goodwill
	Goodwill represents the excess of the cost of an acquired entity over the net fair value of the identifiable assets acquired and liabilities assumed. Goodwill is not amortized, but rather is assessed for impairment at least annually. The Company performs its annual impairment assessment on November 1, or whenever events or circumstances indicate impairment may have occurred. The Company operates under one reporting unit, and as a result, evaluates goodwill impairment based on the fair value of the Company as a whole. The Company did not record any impairment charges for goodwill during the three months ended March 31, 2013 and 2014.
Foreign Currency and Operations	'
	Foreign Currency and Operations
	The reporting currency for all periods presented is the U.S. dollar. The functional currency for the Company’s foreign subsidiaries is the local currency. The financial statements of these subsidiaries are translated into U.S. dollars using exchange rates in effect at the balance sheet date for assets and liabilities and average exchange rates during the period for revenues and expenses. The resulting translation adjustments are included in accumulated other comprehensive income (loss), a separate component of stockholders’ equity. Transaction gains and losses in currencies other than the functional currency are included in other income (expense) in the consolidated statements of operations. Amounts resulting from foreign currency transactions were not material for the three months ended March 31, 2013 and 2014.
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income (Loss)
	Comprehensive income (loss) includes the Company’s net income (loss) as well as other changes in stockholders’ equity that result from transactions and economic events other than those with stockholders. Other comprehensive income (loss) includes foreign currency translation adjustments and net unrealized gains and losses on investments classified as available-for-sale securities. Amounts reclassified out of accumulated other comprehensive income (loss) for the three months ended March 31, 2013 were not material.
Revenue Recognition	'
	Revenue Recognition
	The Company derives its revenues from subscription arrangements and related services permitting customers to access and utilize the Company’s cloud-based software. The Company also derives revenues from news distribution services sold separately from its subscription arrangements. The Company recognizes revenue when there is persuasive evidence of an arrangement, the service has been provided to the customer, the collection of the fee is probable and the amount of the fee to be paid by the customer is fixed or determinable. The Company allocates consideration to each deliverable in multiple element arrangements based on the relative selling prices and recognizes revenue as the respective services are delivered or performed.
	The Company’s separate units of accounting consist of its subscription services, news distribution services and professional services. The Company’s subscription services generally include access to the Company’s cloud-based software, hosting services, content and content updates and customer support. The Company’s subscription agreements typically are non-cancelable, though customers have the right to terminate their agreements for cause if the Company materially breaches its obligations under the agreement. Subscription agreements do not provide customers the right to take possession of the software at any time.
	The Company also distributes individual news releases to the Internet which are indexed by major search engines and distributed directly to various news sites, journalists and other key constituents. The Company recognizes revenue on a per-transaction basis when the press releases are made available to the public.
	The Company’s professional services primarily consist of data migration, custom development and training. The Company’s cloud-based software does not require significant modification and customization services.
	The Company established vendor-specific objective evidence (VSOE) of the fair value for the selling price for certain of its news distribution services as the selling price for a substantial majority of stand-alone sales fall within a narrow range around the median selling price. The Company determined third-party evidence (TPE) of selling price is not available for any of its services due to differences in the features and functionality compared to competitor’s products. Therefore, the Company uses its estimated selling prices (ESP) for the remaining deliverables by analyzing multiple factors such as historical pricing trends, discounting practices, gross margin objectives and other market conditions.
	Sales and other taxes collected from customers to be remitted to government authorities are excluded from revenues.
Deferred Revenue	'
	Deferred Revenue
	Deferred revenue consists of payments received from or billings to customers in advance of revenue recognition. Deferred revenue to be recognized in the succeeding twelve month period is included in current deferred revenue with the remaining amounts included in non-current deferred revenue.
Sales Commissions	'
	Sales Commissions
	Sales commissions are expensed when a subscription agreement is executed by the customer.
Stock-Based Compensation	'
	Stock-Based Compensation
	The Company’s outstanding share-based arrangements include stock option awards, restricted stock awards and restricted stock units. The Company recognizes compensation expense for its stock option and restricted stock awards on a straight-line basis over the requisite service period of the award based on the estimated portion of the award that is expected to vest and applies estimated forfeiture rates based on analyses of historical data, including termination patterns and other factors. The Company recognizes compensation expense for its restricted stock units over an accelerated expense attribution period, which separately recognizes compensation expense for each vesting tranche over its vesting period based on the estimated portion of the award that is expected to vest and applies estimated forfeiture rates based on analyses of historical data, including termination patterns and other factors. Stock options granted have a 10-year term and generally vest annually over a 4-year period. Restricted stock awards generally vest annually over a four-year period. In February 2014, the Company granted restricted stock units to certain members of its executive team which are contingent upon achievement of pre-determined performance-based criteria. The number of units that will vest range from 0% to 200% of the target shares and is also based upon continued employment of the participant over the vesting period which is three years.
	The Company uses the Black-Scholes option pricing model to measure the fair value of stock option awards. The Company uses the daily historical volatility of its stock price over the expected life of the options to calculate the expected volatility. The Company uses a combination of its historical exercise data with expected future exercise patterns using the average midpoint between vesting and the contractual term to determine the expected term of option awards. The risk-free interest rate is based on the rate on U.S. Treasury securities with maturities consistent with the estimated expected term of the awards. The Company has not paid dividends and does not anticipate paying a cash dividend in the foreseeable future and, accordingly, uses an expected dividend yield of zero. The Company uses the quoted closing market price of its common stock on the grant date to measure the fair value of restricted stock awards. The Company estimates the fair value of restricted stock units at the date of grant using the quoted closing market price of its common stock on the grant date and the probability that the specified performance criteria will be met, adjusted for estimated forfeitures. Each quarter the Company updates its assessment of the probability that the specified performance criteria will be achieved and adjusts the estimate of the fair value of the performance-based restricted stock units if necessary.
Income Taxes	'
	Income Taxes
	Income taxes are determined utilizing the asset and liability method whereby deferred tax assets and liabilities are recognized for deductible temporary differences between the respective reported amounts and tax bases of assets and liabilities, as well as for operating loss and tax-credit carryforwards. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized.
	As of December 31, 2013 and March 31, 2014, the Company maintained a full valuation allowance on its U.S. and certain of its foreign deferred tax assets because management determined that it was more likely than not that it will not realize the benefits of its foreign deferred tax assets.
	The Company’s federal and state NOL carryforwards and tax credits are subject to annual limitations under Sections 382 and 383 of Internal Revenue Code. The limitations imposed under Sections 382 and 383 will not preclude the Company from realizing these NOLs and tax credits but may operate to limit their utilization of the NOLs and tax credits in any given tax year in the event that the Company’s federal and state taxable income exceeds the limitation imposed by Sections 382 and 383.
	The Company’s estimates related to liabilities for uncertain tax positions require it to make judgments regarding the sustainability of each uncertain tax position based on its technical merits. If it determines it is more likely than not that a tax position will be sustained based on its technical merits, the Company records the impact of the position in its consolidated financial statements at the largest amount that is greater than fifty percent likely of being realized upon ultimate settlement. The estimates are updated at each reporting date based on the facts, circumstances and information available. The Company is also required to assess at each reporting date whether it is reasonably possible that any significant increases or decreases to its unrecognized tax benefits will occur during the next twelve months. The Company files income tax returns in the U.S. federal jurisdictions and various state and foreign jurisdictions and is subject to U.S. federal, state, and foreign tax examinations for years ranging from 2003 to 2013.
Earnings Per Share	'
	Earnings Per Share
	Basic net income or loss per share attributable to common stockholders is computed by dividing net income or loss attributable to common stockholders by the weighted average number of common shares outstanding for the period. Nonvested shares of restricted stock and restricted stock units are not included in the computation of basic net income per share until vested. The Company’s outstanding grants of restricted stock do not contain non-forfeitable dividend rights. Diluted net income per share attributable to common stockholders is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. For purposes of this calculation, options to purchase common stock, nonvested shares of restricted stock and restricted stock units and shares of redeemable convertible preferred stock are considered to be common stock equivalents.
	As the Company has issued shares of Series A redeemable convertible preferred stock that participate in dividends with the common stock, the Company is required to apply the two-class method to compute the net income per share attributable to common stockholders. In periods of sufficient earnings, the two-class method assumes an allocation of undistributed earnings to both participating stock classes.
	For the three months ended March 31, 2013 and 2014, the Company incurred net losses and, therefore, the effect of the Company’s outstanding stock options, nonvested shares of restricted stock and restricted stock units and redeemable convertible preferred stock was not included in the calculation of diluted loss per share as the effect would be anti-dilutive. For the three months ended March 31, 2013 and 2014, diluted earnings per share excluded the impact of 3,225,334 and 3,060,396 outstanding stock options, respectively, and 1,005,310 and 1,153,268 nonvested shares of restricted stock, respectively and 1,000,000 shares of Series A redeemable convertible preferred stock as the result would be anti-dilutive. For the three months ended March 31, 2014, diluted earnings per share excluded the impact of 317,000 restricted stock units.
Segment Data	'
	Segment Data
	The Company’s chief operating decision maker manages the Company’s operations on a consolidated basis for purposes of assessing performance and making operating decisions. Accordingly, the Company reports on its business as one segment.

Cash_Equivalents_Tables

Cash Equivalents (Tables)	3 Months Ended
	Mar. 31, 2014
Cash And Cash Equivalents [Abstract]	'
Components of Cash Equivalents	'
	The components of cash equivalents at December 31, 2013 were as follows (in thousands):
								Fair
								Market
				Unrealized				Value
		Cost		Gains		Losses
	Cash equivalents:
	Money market funds	$	5,302	$	—	$	—	$	5,302
	Certificates of deposit		6,907		—		—		6,907
	Total	$	12,209	$	—	$	—	$	12,209
	The components of cash equivalents at March 31, 2014 were as follows (in thousands):
								Fair
								Market
				Unrealized				Value
		Cost		Gains		Losses
	Cash equivalents:
	Money market funds	$	5,304	$	—	$	—	$	5,304
	Certificates of deposit		6,884		—		—		6,884
	Total	$	12,188	$	—	$	—	$	12,188

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements of Assets and Liabilities	'
	The fair value measurements of the Company’s financial assets and liabilities measured on a recurring basis at December 31, 2013 were as follows (in thousands):
		Total		Level 1		Level 2		Level 3
	Assets:
	Cash equivalents	$	12,209	$	12,209	$	—	$	—
	Total assets measured at fair value	$	12,209	$	12,209	$	—	$	—
	The fair value measurements of the Company’s financial assets and liabilities measured on a recurring basis at March 31, 2014 were as follows (in thousands):
		Total		Level 1		Level 2		Level 3
	Assets:
	Cash equivalents	$	12,188	$	12,188	$	—	$	—
	Total assets measured at fair value	$	12,188	$	12,188	$	—	$	—

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Changes in Carrying Amount of Goodwill	'
	The changes in the carrying amount of goodwill for the three months ended March 31, 2014 were as follows (in thousands):
	Balance at beginning of period	$	177,264
	Effects of foreign currency translation		(24	)
	Balance as of end of period	$	177,240
Details of Intangible Assets	'
	Intangible assets at December 31, 2013 consisted of the following (in thousands):
		Weighted-		Gross		Accumulated			Net Carrying
		Average		Carrying		Amortization			Amount
		Amortization		Amount
		Period
	Customer relationships	3.7		$	23,376	$	(14,074	)	$	9,302
	Trade names	5.9			5,695		(5,058	)		637
	Purchased technology	3.1			13,496		(8,630	)		4,866
	Total			$	42,567	$	(27,762	)	$	14,805
	Intangible assets at March 31, 2014 consisted of the following (in thousands):
		Weighted-		Gross		Accumulated			Net Carrying
		Average		Carrying		Amortization			Amount
		Amortization		Amount
		Period
	Customer relationships	3.7		$	23,362	$	(15,816	)	$	7,546
	Trade names	5.9			5,694		(5,188	)		506
	Purchased technology	3.1			13,493		(9,677	)		3,816
	Total			$	42,549	$	(30,681	)	$	11,868
Future Expected Amortization of Intangible Assets	'
	Future expected amortization of intangible assets at March 31, 2014 was as follows (in thousands):
	The remainder of 2014	$	8,788
	2015		2,349
	2016		573
	2017		158
	2018 and thereafter		—
	Total	$	11,868

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2014
Components of Stock-Based Compensation Expense for Equity Awards Recorded in the Consolidated Statements of Operations	'
	The following table sets forth the stock-based compensation expense for equity awards recorded in the consolidated statements of operations for the three months ended March 31, 2013 and 2014 (in thousands):
		Three Months Ended
		March 31,
		2013			2014
	Cost of revenues	$	468		$	475
	Sales and marketing		934			1,340
	Research and development		623			494
	General and administration		1,665			1,708
	Total	$	3,690		$	4,017
Weighted-Average Assumptions Used in Calculating Stock-Based Compensation for Stock Option Awards Granted	'
	The following weighted-average assumptions were used in calculating stock-based compensation for stock option awards granted during the three months ended March 31, 2013 and 2014:
		Three Months Ended
		March 31,
		2013			2014
	Stock price volatility		58	%		60	%
	Expected term (years)		6			6.6
	Risk-free interest rate		1.1	%		1.8	%
	Dividend yield		0	%		0	%
Summary of Stock Option Activity	'
	The summary of stock option activity for the three months ended March 31, 2014 was as follows:
		Number of			Weighted-			Weighted-		Aggregate
		Options			Average			Average		Intrinsic
					Exercise			Contractual		Value as of
					Price per			Term		March 31,
					Share					2014
										(In thousands)
	Balance outstanding at January 1, 2014		3,205,153		$	15.33
	Granted		15,000			13.35
	Exercised		(2,938	)		9.23
	Forfeited or cancelled		(156,819	)		16.81
	Balance outstanding at March 31, 2014		3,060,396		$	15.26			6.7	$	2,332
	Options vested and expected to vest at March 31, 2014		2,993,502		$	15.29			6.7	$	2,296
	Exercisable at March 31, 2014		1,847,715		$	15.81			5.6	$	1,868
Restricted Stock [Member]	'
Summary of Restricted Stock Award Activity	'
	The summary of restricted stock award activity for the three months ended March 31, 2014 was as follows:
		Number of Shares			Weighted-Average
		Underlying			Grant-date
		Stock Awards			Fair Value
	Balance nonvested at January 1, 2014		937,536		$	15.18
	Awarded		579,750			12.25
	Vested		(310,768	)		15.8
	Forfeited		(53,250	)		16.22
	Balance nonvested at March 31, 2014		1,153,268		$	13.49
Restricted Stock Unit [Member]	'
Summary of Restricted Stock Award Activity	'
	The summary of restricted stock unit activity for the three months ended March 31, 2014 was as follows:
		Number of Shares			Weighted-Average
		Underlying			Grant-date
		Stock Awards			Fair Value
	Balance nonvested at January 1, 2014		—		$	—
	Awarded		317,000			12.13
	Vested		—			—
	Forfeited		—			—
	Balance nonvested at March 31, 2014		317,000		$	12.13

Summary_of_Significant_Account2

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
	Segment
Summary Of Significant Accounting Policies [Line Items]	'	'
Maturity period of liquid investments	'Three months or less	'
Impairment charges for long-lived assets	$0	$0
Deferred revenue recognized period	'Twelve month period	'
Expected dividend yield	$0	'
Portion of the tax benefit	'Greater than 50 percent	'
Unrecognized tax benefits period	'12 months	'
Number of reportable business segment	1	'
Restricted Stock Unit [Member]	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'
Securities excluded from diluted earnings per share	317,000	'
Series A Redeemable Convertible Preferred Stock [Member]	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'
Securities excluded from diluted earnings per share	1,000,000	1,000,000
Employee Stock Option [Member]	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'
Securities excluded from diluted earnings per share	3,060,396	3,225,334
Restricted Stock [Member]	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'
Securities excluded from diluted earnings per share	1,153,268	1,005,310
Minimum [Member]	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'
Estimated life of Long-Lived Assets	'2 years	'
Maximum [Member]	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'
Estimated life of Long-Lived Assets	'7 years	'

Cash_Equivalents_Components_of

Cash Equivalents - Components of Cash Equivalents (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Cash and Cash Equivalents [Line Items]	'	'	'	'
Cost	$38,878	$34,740	$40,332	$32,107
Cost	12,188	12,209	'	'
Fair Market Value	12,188	12,209	'	'
Unrealized Gains	'	'	'	'
Unrealized Losses	'	'	'	'
Money Market Funds [Member]	'	'	'	'
Cash and Cash Equivalents [Line Items]	'	'	'	'
Cost	5,304	5,302	'	'
Fair Market Value	5,304	5,302	'	'
Unrealized Gains	'	'	'	'
Unrealized Losses	'	'	'	'
Certificates of Deposit [Member]	'	'	'	'
Cash and Cash Equivalents [Line Items]	'	'	'	'
Cost	6,884	6,907	'	'
Fair Market Value	6,884	6,907	'	'
Unrealized Gains	'	'	'	'
Unrealized Losses	'	'	'	'

Cash_Equivalents_Additional_In

Cash Equivalents - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2014
Cash And Cash Equivalents [Abstract]	'
Maturity date of cash equivalents	'Three months or less

Fair_Value_Measurements_Fair_V

Fair Value Measurements - Fair Value Measurements of Assets and Liabilities (Detail) (Fair Value Measurements, Recurring [Member], USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets:	'	'
Cash equivalents	$12,188	$12,209
Total assets measured at fair value	12,188	12,209
Level 1 [Member]	'	'
Assets:	'	'
Cash equivalents	12,188	12,209
Total assets measured at fair value	12,188	12,209
Level 2 [Member]	'	'
Assets:	'	'
Cash equivalents	'	'
Total assets measured at fair value	'	'
Level 3 [Member]	'	'
Assets:	'	'
Cash equivalents	'	'
Total assets measured at fair value	'	'

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]	'
Balance at beginning of period	$177,264
Effects of foreign currency translation	-24
Balance as of end of period	$177,240

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets - Details of Intangible Assets (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	$42,549	$42,567
Accumulated Amortization	-30,681	-27,762
Net Carrying Amount	11,868	14,805
Customer Relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Weighted- Average Amortization Period	'3 years 8 months 12 days	'3 years 8 months 12 days
Gross Carrying Amount	23,362	23,376
Accumulated Amortization	-15,816	-14,074
Net Carrying Amount	7,546	9,302
Trade Names [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Weighted- Average Amortization Period	'5 years 10 months 24 days	'5 years 10 months 24 days
Gross Carrying Amount	5,694	5,695
Accumulated Amortization	-5,188	-5,058
Net Carrying Amount	506	637
Purchased Technology [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Weighted- Average Amortization Period	'3 years 1 month 6 days	'3 years 1 month 6 days
Gross Carrying Amount	13,493	13,496
Accumulated Amortization	-9,677	-8,630
Net Carrying Amount	$3,816	$4,866

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'	'
Amortization of intangible assets	$2,929	$3,071

Goodwill_and_Intangible_Assets5

Goodwill and Intangible Assets - Future Expected Amortization of Intangible Assets (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite Lived Intangible Assets Future Amortization Expense [Abstract]	'	'
The remainder of 2014	$8,788	'
2015	2,349	'
2016	573	'
2017	158	'
2018 and thereafter	'	'
Net Carrying Amount	$11,868	$14,805

Debt_Additional_Information_De

Debt - Additional Information (Detail) (Revolving Credit Facility [Member], USD $)	3 Months Ended
	Mar. 31, 2014	Feb. 27, 2012
Revolving Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt instrument description	'BBA LIBOR Daily Floating Rate plus 2.25%	'
Interest on borrowings	2.25%	'
Outstanding borrowings	$0	'
End date of the revolving credit facility	30-Jun-14	'
Payment of fee on unused funds	0.40%	'
Shares pledged of foreign subsidiaries, percentage	65.00%	'
Outstanding letters of credit	1,200,000	'
Available to borrow under revolving credit facility	13,800,000	'
Revolving credit facility	'	$15,000,000

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)

3 Months Ended

3 Months Ended

0 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Feb. 24, 2012

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

13-May-13

Feb. 24, 2012

Mar. 31, 2014

Dec. 31, 2013

Feb. 29, 2012

Mar. 31, 2014

31-May-13

Mar. 31, 2014

Mar. 31, 2014

Common Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Minimum [Member]

Maximum [Member]

Series A Redeemable Convertible Preferred Stock [Member]

Series A Redeemable Convertible Preferred Stock [Member]

Series A Redeemable Convertible Preferred Stock [Member]

Series A Redeemable Convertible Preferred Stock [Member]

Series A Redeemable Convertible Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Series A Preferred Stock Conversion on or Before February 24, 2017 [Member]

Series A Preferred Stock Conversion on or After February 25, 2017 [Member]

Right

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Undesignated shares of capital stock

10,000,000

'

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Authorized preferred stock

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000

'

100,000

'

'

Issued shares of Series A Redeemable Convertible Preferred Stock

'

'

'

'

'

'

'

'

'

'

1,000,000

'

'

'

'

'

'

'

Preferred stock issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

Preferred stock outstanding

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

Series A Convertible preferred stock, issued

'

'

'

'

'

'

'

'

'

'

1,000,000

1,000,000

1,000,000

'

'

'

'

'

Redeemable convertible preferred stock with deemed fair value at issuance

'

'

'

$77,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liquidation preference

$77.30

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Redeem each issued and outstanding share

'

'

'

'

'

'

'

'

'

'

$77.30

'

'

'

'

'

'

'

Convertible common stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.0256

3.3282

Description of conversion of stock

'conversions occurring on or before February 24, 2017 On and after February 25, 2017

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding shares common stock

'

'

'

'

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

Percentage of preferred stockholders own in issued and outstanding capital stock

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Rights for outstanding share of Preferred Stock to stockholders

'

'

'

'

'

'

'

'

'

3.0256

'

'

'

'

'

'

'

'

Number of rights declared as dividend distribution for each share of common stock

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

Preferred Stock price, per one one-thousandth of a share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$46

'

'

'

Percentage of common stock to be acquired for exercise of rights

'

'

'

'

'

'

'

20.00%

'

'

'

'

'

'

'

'

'

'

Percentage of rights acquired for outstanding common stock beneficial ownership

'

'

'

'

'

'

'

20.00%

'

'

'

'

'

'

'

'

'

'

Percentage of rights acquired for outstanding common stock, beneficially owns

'

'

'

'

'

'

'

20.00%

'

'

'

'

'

'

'

'

'

'

Percentage of outstanding common stock acquires additional shares

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

Percentage of common stock acquired in beneficial ownership

'

'

'

'

'

'

'

20.00%

25.00%

'

'

'

'

'

'

'

'

'

Redemption price per Right

$0.00

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of Acquisition of outstanding Share Capital

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exchange ratio of newly issued share

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiration Date of rights

13-May-16

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiration Date of Rights Period

'30 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock repurchases during the period

'

'

'

'

60,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase price of common stock, shares

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares repurchased

'

'

'

'

'

70,901

29,678

'

'

'

'

'

'

'

'

'

'

'

Minimum statutory tax withholding obligations

'

'

'

'

'

$932,000

$413,000

'

'

'

'

'

'

'

'

'

'

'

StockBased_Compensation_Compon

Stock-Based Compensation - Components of Stock-Based Compensation Expense for Equity Awards Recorded in the Consolidated Statements of Operations (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total	$4,017	$3,690
Cost of Revenues [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total	475	468
Sales and Marketing [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total	1,340	934
Research and Development [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total	494	623
General and Administration [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Total	$1,708	$1,665

StockBased_Compensation_Weight

Stock-Based Compensation - Weighted Average Assumptions Used in Calculating Fair Value of Stock Options Awards Granted (Detail)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'
Stock price volatility	60.00%	58.00%
Expected term (years)	'6 years 7 months 6 days	'6 years
Risk-free interest rate	1.80%	1.10%
Dividend yield	0.00%	0.00%

StockBased_Compensation_Summar

Stock-Based Compensation - Summary of Stock Option Activity (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Number of Options, Outstanding, Beginning Balance	3,205,153
Number of Options, Granted	15,000
Number of Options, Exercised	-2,938
Number of Options, Forfeited or cancelled	-156,819
Number of Options, Outstanding, Ending Balance	3,060,396
Number of Options, Vested and expected to vest, Ending Balance	2,993,502
Number of Options, Exercisable, Ending Balance	1,847,715
Weighted-Average Exercise Price per Share, Outstanding, Beginning Balance	$15.33
Weighted-Average Exercise Price per Share, Granted	$13.35
Weighted-Average Exercise Price per Share, Exercised	$9.23
Weighted-Average Exercise Price per Share, Forfeited or cancelled	$16.81
Weighted-Average Exercise Price per Share, Outstanding, Ending Balance	$15.26
Weighted-Average Exercise Price per Share, Vested and expected to vest, Ending Balance	$15.29
Weighted-Average Exercise Price per Share, Exercisable, Ending Balance	$15.81
Weighted-Average Contractual Term, Outstanding, Ending Balance	'6 years 8 months 12 days
Weighted-Average Contractual Term, Vested and expected to vest, Ending Balance	'6 years 8 months 12 days
Weighted-Average Contractual Term, Exercisable, Ending Balance	'5 years 7 months 6 days
Aggregate Intrinsic Value, Outstanding, Ending Balance	$2,332
Aggregate Intrinsic Value, Vested and expected to vest, Ending Balance	2,296
Aggregate Intrinsic Value, Exercisable, Ending Balance	$1,868

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Weighted-average grant date fair value of stock options granted	$7.82	$7.72
Fair value of stock options vested	$4.70	$3.30
Employee Stock Option [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unrecognized stock-based compensation cost	8.3	'
Period for recognition of unrecognized stock-based compensation	'2 years 3 months 18 days	'
Restricted Stock [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Period for recognition of unrecognized stock-based compensation	'2 years 9 months 18 days	'
Unrecognized stock-based compensation cost	14.4	'
Restricted Stock Unit [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unrecognized stock-based compensation cost	$3.50	'
Period for recognition of unrecognized stock-based compensation	'1 year 10 months 24 days	'

StockBased_Compensation_Summar1

Stock-Based Compensation - Summary of restricted Stock Activity (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014
Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares Underlying Stock Awards, Beginning Balance nonvested	937,536
Number of Shares Underlying Stock Awards, Awarded	579,750
Number of shares Underlying Stock Awards, Vested	-310,768
Number of shares Underlying Stock Awards, Forfeited	-53,250
Number of Shares Underlying Stock Awards, Ending Balance nonvested	1,153,268
Weighted-Average Grant-date Fair Value, Beginning Balance nonvested	$15.18
Weighted-Average Grant-date Fair Value, Awarded	$12.25
Weighted-Average Grant-date Fair Value, Vested	$15.80
Weighted-Average Grant-date Fair-Value, Forfeited	$16.22
Weighted-Average Grant-date Fair Value, Ending Balance nonvested	$13.49
Restricted Stock Unit [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares Underlying Stock Awards, Awarded	317,000
Number of Shares Underlying Stock Awards, Ending Balance nonvested	317,000
Weighted-Average Grant-date Fair Value, Awarded	$12.13
Weighted-Average Grant-date Fair Value, Ending Balance nonvested	$12.13

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended
	Jan. 23, 2014	Mar. 31, 2014
Commitment And Contingencies [Line Items]	'	'
Generally contain renewal options	'	'Up to five years
Deferred rent included in accrued expenses	'	$773,000
Deferred rent included in other liabilities	'	4,900,000
Minimum required payments in future years 2014	'	2,900,000
Minimum required payments in future years 2015	'	4,000,000
Minimum required payments in future years 2016	'	3,900,000
Minimum required payments in future years 2017	'	2,700,000
Minimum required payments in future years 2018	'	2,000,000
Minimum required payments in future years 2019 and thereafter	'	8,600,000
Minimum required payments in future years under arrangements 2014	'	5,500,000
Minimum required payments in future years under arrangements 2015	'	3,400,000
Minimum required payments in future years under arrangements 2016	'	1,000,000
Letter of credit	'	1,200,000
Expiry of letters of credit	'	31-May-23
Damages sought value for loss contingency	$6,400,000	'
Machinery and Equipment [Member]	'	'
Commitment And Contingencies [Line Items]	'	'
Lease expiration year	'	'2017
Land and Building [Member]	'	'
Commitment And Contingencies [Line Items]	'	'
Lease expiration year	'	'2023

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Apr. 06, 2014
			Subsequent Event [Member]
Subsequent Events [Line Items]	'	'	'
Common stock under merger agreement par value	$0.01	$0.01	$0.01
Sale of associated rights to purchase Series B Junior Participating Preferred Stock under merger agreement par value	'	'	$18
Minimum Percentage of common stock outstanding to be acquired by purchased short form procedure	'	'	90.00%
Termination fee of Merger Agreement	'	'	13,000,000
Reverse termination fee payable by parent	'	'	29,000,000
Percentage of outstanding shares held by officers of entity	'	'	27.70%
Convertible preferred stock par value	$0.01	$0.01	$0.01
Fund committed to purchase equity or debt securities of Parent aggregate amount under merger agreement	'	'	$30,000,000