comScore (SCOR) 10-Q 5 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	4-May-15
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	SCOR
Entity Registrant Name	COMSCORE, INC.
Entity Central Index Key	1158172
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		40,483,660

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$40,854	$43,015
Accounts receivable, net of allowances of $2,519 and $2,079, respectively	83,502	98,185
Prepaid expenses and other current assets	13,551	11,015
Deferred tax assets	19,718	20,976
Assets held for sale	5,602	5,692
Total current assets	163,227	178,883
Property and equipment, net	45,370	42,365
Other non-current assets	969	1,017
Long-term deferred tax assets	12,683	12,369
Intangible assets, net	13,797	15,793
Goodwill	101,290	103,525
Total assets	337,336	353,952
Current liabilities:
Accounts payable	6,232	3,421
Accrued expenses	26,059	37,212
Deferred revenues	90,535	92,013
Deferred rent	1,645	1,738
Capital lease obligations	14,239	13,353
Current liabilities held for sale	4,150	3,873
Total current liabilities	142,860	151,610
Deferred rent, long-term	9,433	9,738
Deferred revenue, long-term	1,126	2,063
Deferred tax liabilities, long-term	1,058	1,182
Capital lease obligations, long-term	13,023	13,072
Other long-term liabilities	751	1,022
Total liabilities	168,251	178,687
Stockholders' equity:
Preferred stock, $0.001 par value per share; 5,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value per share; 100,000,000 shares authorized; 36,267,082 shares issued and 34,441,547 outstanding as of March 31, 2015 and 35,919,340 shares issued and 34,174,466 shares outstanding at December 31, 2014, respectively	36	36
Additional paid-in capital	333,442	324,176
Accumulated other comprehensive (loss) income	-9,956	-5,591
Accumulated deficit	-100,401	-93,076
Treasury stock, at cost, 1,825,535 and 1,744,874 shares as of March 31, 2015 and December 31, 2014, respectively	-54,036	-50,280
Total stockholders’ equity	169,085	175,265
Total liabilities and stockholders’ equity	$337,336	$353,952

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Statement Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance	$0	$2,079
Preferred stock, par value (in dollars per share)	$0.00	$0.00
Preferred stock,shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	36,295,043	35,919,340
Common stock, shares outstanding (in shares)	34,469,508	34,174,466
Total number of shares repurchased	1,737,109	483,437

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement Consolidated Statements Of Operations And Comprehensive Income [Abstract]
Revenues	$87,329	$76,899
Cost of revenues (excludes amortization of intangible assets) (1)	24,892	23,441
Selling and marketing	27,331	26,066
Research and development	18,006	12,477
General and administrative	25,001	13,344
Amortization of intangible assets	1,379	1,955
Gain (Loss) Related to Litigation Settlement	-90	-80
Total expenses from operations	96,519	77,203
Loss from operations	-9,190	-304
Interest and other expense, net	-392	-203
Loss from foreign currency	-72	-153
Loss before income tax provision	-9,654	-660
Income tax benefit (provision)	2,329	-122
Net loss	-7,325	-782
Net loss available to common stockholders per common share:
Basic (in dollars per share)	($0.22)	($0.02)
Diluted (in dollars per share)	($0.22)	($0.02)
Weighted-average number of shares used in per share calculation - common stock:
Basic (in shares)	33,793,582	33,822,835
Diluted (in shares)	33,793,582	33,822,835
Comprehensive loss:
Net loss	-7,325	-782
Other comprehensive income (loss):
Foreign currency cumulative translation adjustment	-4,365	-158
Total comprehensive loss	($11,690)	($940)

CONSOLIDATED_STATEMENTS_OF_OPE1

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortization of stock-based compensation	$2,209	$725
Selling and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortization of stock-based compensation	3,747	2,396
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortization of stock-based compensation	2,183	725
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortization of stock-based compensation	$13,616	$3,377

CONSOLIDATED_STATEMENTS_OF_STO

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Accumulated Stockholders' Deficit [Member]	Treasury Stock [Member]
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2013	$198,802	$36	$293,322	$1,726	($83,173)
Balance, shares at Dec. 31, 2013		35,216,071
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	-782				-782
Foreign currency translation adjustment	-158			-158
Exercise of common stock options (in shares)		4,866
Exercise of common stock options	15		15
Issuance of restricted stock, shares		193,006
Issuance of restricted stock	0	0	0
Restricted stock cancelled, shares		-8,590
Restricted stock units vested, shares		316,395
Common stock received for tax withholding, shares		-304,636
Common stock received for tax withholding	-9,581		-9,581
Repurchase of common stock, shares		-755,373
Repurchase of common stock	-21,498					-21,498
Excess tax benefits from stock based compensation, net	265
Stock based compensation	11,974		11,974
Balance at Mar. 31, 2014	179,037	36	295,995	1,568	-83,955	-34,607
Balance, shares at Mar. 31, 2014		34,661,739
Balance at Dec. 31, 2014	175,265	36	324,176	-5,591	-93,076	-50,280
Balance, shares at Dec. 31, 2014		34,174,466
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	-7,325
Foreign currency translation adjustment	-4,365			-4,365
Exercise of common stock options (in shares)	59,214	59,214
Exercise of common stock options	2,363		2,363
Issuance of restricted stock, shares		175,287
Issuance of restricted stock		0	0
Restricted stock cancelled, shares		-1,650
Restricted stock units vested, shares		545,669
Common stock received for tax withholding, shares		-430,778
Common stock received for tax withholding	-21,660		-21,660
Repurchase of common stock, shares	-430,778	-80,661
Repurchase of common stock	-3,756					-3,756
Amortization of stock based compensation	28,563		28,563
Balance at Mar. 31, 2015	$169,085	$36	$333,442	($9,956)	($100,401)	($54,036)
Balance, shares at Mar. 31, 2015		34,441,547

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net loss
Net loss	($7,325)	($782)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	5,010	4,183
Amortization of intangible assets	1,379	1,955
Impairment of intangible assets
Provision for bad debts	985	500
Stock-based compensation	21,755	7,223
Amortization of deferred rent	-446	-255
Deferred tax provision (benefit)	515	-255
Loss (gain) on asset disposal	0	-20
Changes in operating assets and liabilities:
Accounts receivable	12,116	2,107
Prepaid expenses and other current assets	-3,173	-2,505
Accounts payable, accrued expenses, and other liabilities	-4,181	2,378
Deferred revenues	1,140	4,810
Deferred rent	88	36
Net cash provided by operating activities	27,863	19,375
Investing activities
Purchase of property and equipment	-1,402	-1,873
Net cash used in investing activities	-1,402	-1,873
Financing activities
Proceeds from the exercise of common stock options	2,363	15
Repurchase of common stock (withholding taxes)	-21,660	-9,581
Repurchase of common stock (treasury shares)	-3,756	-21,498
Excess tax benefits from stock based compensation	0	265
Principal payments on capital lease obligations	-3,793	-2,707
Net cash used in financing activities	-26,846	-33,506
Effect of exchange rate changes on cash	-1,776	2
Net decrease in cash and cash equivalents	-2,161	-16,002
Cash and cash equivalents at beginning of period	43,015	67,795
Cash and cash equivalents at end of period	40,854	51,793
Supplemental cash flow disclosures
Interest paid	388	315
Net income taxes paid	637	172
Supplemental noncash investing and financing activities
Capital lease obligations incurred	4,639	2,128
Leasehold improvements acquired through lease incentives	396	0
Accrued capital expenditures	$4,209	$1,309

Organization

Organization	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization
	1	Organization
	comScore, Inc. (the “Company”), a Delaware corporation incorporated in August 1999, provides digital media analytics that enables its customers to make well-informed, data-driven decisions to effectively manage their business, build successful digital strategies and tactics, and optimize their marketing and advertising investments. The Company is a technology-driven company that measures what people do as they navigate the digital world across multiple technology platforms including personal computers, smartphones, tablets, televisions and interact with digital media, including websites, apps, video programming and advertising. The Company aspires to measure all digital interactions across all major digital platforms, at scale, on a global basis.
	The Company's products and services provide its customers with deep and actionable insight into consumer behavior including objective, detailed information about consumer usage of digital content and advertising coupled with information on consumer demographic characteristics, attitudes, lifestyles and offline behavior. The Company is skilled in combining proprietary Company data with its clients’ own data, as well as data from partners, to provide uniquely valuable digital media analytics. The Company delivers on-demand and real-time products and services through a scalable Software-as-Service delivery model which supports both Company branded products and also partner products integrating the Company's data and services.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Summary of Significant Accounting Policies
	2	Summary of Significant Accounting Policies
	Basis of Presentation and Consolidation
	The accompanying interim consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated upon consolidation. The Company consolidates investments where it has a controlling financial interest. The usual condition for controlling financial interest is ownership of a majority of the voting interest and, therefore, as a general rule, ownership, directly or indirectly, of more than 50% of the outstanding voting shares is a condition indicating consolidation. All of the Company's subsidiaries are wholly owned.
	Unaudited Interim Financial Information
	The consolidated interim financial statements included in this quarterly report on Form 10-Q have been prepared by the Company without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures normally included in consolidated interim financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. However, the Company believes that the disclosures contained in this quarterly report comply with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (the “Exchange Act”), as amended, for a quarterly report on Form 10-Q and are adequate to make the information presented not misleading. The consolidated interim financial statements included herein, reflect all adjustments (consisting of normal recurring adjustments) which are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. These consolidated interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, filed February 20, 2015 with the SEC. The results of operations for the three months ended March 31, 2015 are not necessarily indicative of the results to be anticipated for the entire year ending December 31, 2015 or thereafter. All references to March 31, 2015 and 2014 or to the three months ended March 31, 2015 and 2014 in the notes to the consolidated interim financial statements are unaudited.
	Use of Estimates
	The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of revenue and expense during the reporting periods. Significant estimates and assumptions are inherent in the analysis and the measurement of deferred tax assets, the identification and quantification of income tax liabilities due to uncertain tax positions, recoverability of intangible assets, other long-lived assets and goodwill, accruals related to outstanding litigation, the collectability of accounts receivable and the allowance for doubtful accounts. The Company bases its estimates on historical experience and assumptions that it believes are reasonable. Actual results could differ from those estimates.
	Fair Value Measurements
	The Company evaluates the fair value of certain assets and liabilities using the fair value hierarchy. Fair value is an exit price representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the Company applies the three-tier value hierarchy which prioritizes the inputs used in measuring fair value as follows:
	Level 1 — observable inputs such as quoted prices in active markets;
	Level 2 — inputs other than the quoted prices in active markets that are observable either directly or indirectly;
	Level 3 — unobservable inputs of which there is little or no market data, which require the Company to develop its own assumptions.
	The Company does not currently have any assets or liabilities that are measured at fair value on a recurring basis. However, cash equivalents, accounts receivable, prepaid expenses and other assets, accounts payable, accrued expenses, deferred revenue, deferred rent and capital lease obligations reported in the consolidated balance sheets equal or approximate their respective fair values because of their short term nature.
	Accounts Receivable
	Accounts receivable are recorded at the invoiced amount and are non-interest bearing. The Company generally grants uncollateralized credit terms to its customers and maintains an allowance for doubtful accounts to reserve for potentially uncollectible receivables. Allowances are based on management’s judgment, which considers historical experience and specific knowledge of accounts where collectability may not be probable. The Company makes provisions based on historical bad debt experience, a specific review of all significant outstanding invoices and an assessment of general economic conditions. If the financial condition of a customer deteriorates, resulting in an impairment of its ability to make payments, additional allowances may be required. Included within accounts receivable are unbilled accounts receivable, which relate to situations in which the Company has recognized revenue for services performed prior to invoicing a customer, but for which we have the legal right to invoice the customer. Typically, unbilled accounts receivable are invoiced in the following period.
	Revenue Recognition
	The Company recognizes revenues when the following fundamental criteria are met: (i) persuasive evidence of an arrangement exists, (ii) delivery has occurred or the services have been rendered, (iii) the fee is fixed or determinable, and (iv) collection of the resulting receivable is reasonably assured.
	The Company generates revenues by providing access to the Company’s online database or delivering information obtained from the database, usually in the form of periodic reports. Revenues are typically recognized on a straight-line basis over the period in which access to data or reports is provided, which generally ranges from three to twenty-four months. Sales taxes remitted to government authorities are recorded on a net basis.
	Revenues are also generated through survey services under contracts ranging in term from two months to one year. Survey services consist of survey and questionnaire design with subsequent data collection, analysis and reporting. At the outset of an arrangement, total arrangement consideration is allocated between the development of the survey questionnaire and subsequent data collection, analysis and reporting services based on relative selling price. Revenue allocated to the survey questionnaire is recognized when it is delivered and revenue allocated to the data collection, analysis and reporting services is recognized on a straight-line basis over the estimated data collection period once the survey or questionnaire design has been delivered. Any change in the estimated data collection period results in an adjustment to revenues recognized in future periods.
	Certain of the Company’s arrangements contain multiple elements, consisting of the various services the Company offers. Multiple element arrangements typically consist of either subscriptions to multiple online products or a subscription to the Company’s online database combined with customized services. The Company accounts for these arrangements in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2009-13, Multiple Deliverable Revenue Arrangements, which requires the Company to allocate arrangement consideration at the inception of an arrangement to all deliverables, if they represent a separate unit of accounting, based on their relative selling prices. The guidance establishes a hierarchy to determine the selling price to be used for allocating arrangement consideration to deliverables: (i) vendor-specific objective evidence of fair value (“VSOE”), (ii) third-party evidence of selling price (“TPE”) if VSOE is not available, or (iii) an estimated selling price (“ESP”) if neither VSOE nor TPE are available. VSOE generally exists only when the Company sells the deliverable separately and is the price actually charged by the Company for that deliverable on a stand-alone basis. ESP reflects the Company’s estimate of what the selling price of a deliverable would be if it was sold regularly on a stand-alone basis.
	The Company has concluded it generally does not have VSOE for its arrangements, and TPE is generally not available because the Company’s service offerings are highly differentiated and the Company is unable to obtain reliable information on the products and pricing practices of the Company’s competitors. As such, ESP is generally used to allocate the total arrangement consideration at the arrangement inception based on each element’s relative selling price.
	The Company’s process for determining ESP involves management’s judgments based on multiple factors that may vary depending upon the unique facts and circumstances related to each product suite and deliverable. The Company determines ESP by considering several external and internal factors including, but not limited to, current pricing practices, pricing concentrations such as industry, channel, customer class or geography, internal costs and market penetration of a product or service. The total arrangement consideration is allocated to each of the elements based on the relative selling price. If the ESP is determined as a range of selling prices, the mid-point of the range is used in the relative-selling-price method. Once the total arrangement consideration has been allocated to each deliverable based on the relative allocation of the arrangement fee, the Company commences revenue recognition for each deliverable on a stand-alone basis as the data or service is delivered. ESP will be analyzed on an annual basis or more frequently if management deems it likely that changes in the estimated selling prices have occurred.
	Generally, contracts are non-refundable and non-cancellable. In the event a portion of a contract is refundable, revenue recognition is delayed until the refund provisions lapse. A limited number of customers have the right to cancel their contracts by providing a written notice of cancellation. In the event that a customer cancels its contract, the customer is not entitled to a refund for prior services, and will be charged for costs incurred plus services performed up to the cancellation date.
	Advance payments are recorded as deferred revenues until services are delivered or obligations are met and revenue can be recognized. Deferred revenues represent the excess of amounts invoiced over amounts recognized as revenues.
	Multiple contracts with a single counterparty that are negotiated simultaneously and are considered contemporaneous are accounted for as one arrangement.  If there are multiple contracts with one counterparty that are deemed independent of one another, they are accounted for as separate arrangements.
	The Company accounts for nonmonetary transactions under ASC 845, Nonmonetary Transactions. Nonmonetary transactions with commercial substance are recorded at the estimated fair value of assets surrendered including cash, if cash is less than 25% of the fair value of the overall exchange, unless the fair value of the assets received is more clearly evident, in which case the fair value of the asset received is used to estimate fair value for the exchange.
	In 2013, the Company entered into an agreement to exchange certain data assets with a corporation.  In Q4 2014, the Company and the corporation modified the existing agreement, where the parties will provide additional data assets. A member of the Company’s Board of Directors also serves as a member of the Board of Directors of that corporation and therefore, the Company has considered the corporation to be a related party. The transaction was considered to have commercial substance under the guidance in ASC 845 and the Company estimated the fair value of the services delivered based on similar monetary transactions with third parties.  No cash was exchanged in this transaction.  The Company also considered the guidance in ASC 850, Related Party Disclosures.
	During the three months ended March 31, 2015 and 2014, the Company recognized $3.8 million and $2.2 million, respectively, of revenue related to nonmonetary transactions, of which $2.1 million and $1.7 million, respectively, was attributable to the related party transaction. During the three months ended March 31, 2015 and 2014, the Company recognized $4.2 million and $1.2 million, respectively, in expense related to nonmonetary transactions, of which $2.0 million and $0.8 million, respectively, was attributable to the related party transaction. Due to timing differences in the delivery and receipt of the respective nonmonetary assets exchanged, expense recognized in each period is different from the amount of revenue recognized.
	Stock-Based Compensation
	The Company estimates the fair value of stock-based awards on the date of grant. The fair value of stock options with only service conditions is determined using the Black-Scholes option-pricing model. The fair value of market-based stock options and restricted stock units is determined using a Monte Carlo simulation embedded in a lattice model. The fair value of restricted stock awards is based on the closing price of the Company’s common stock on the date of grant. The determination of the fair value of the Company’s stock option awards, restricted stock units, and restricted stock awards is based on a variety of factors including, but not limited to, the Company’s common stock price, expected stock price volatility over the expected life of awards, and actual and projected exercise behavior. Additionally, the Company has estimated forfeitures for stock-based awards at the dates of grant based on historical experience and adjusted for future expectation. The forfeiture estimate is revised as necessary if actual forfeitures differ from these estimates.
	The Company issues restricted stock awards where restrictions lapse upon the passage of time (service vesting), achieving performance targets, or some combination of these restrictions. For those restricted stock awards with only service conditions, the Company recognizes compensation cost on a straight-line basis over the explicit service period. For awards with both performance and service conditions, the Company starts recognizing compensation cost over the remaining service period, when it is probable the performance condition will be met. For stock awards that contain market vesting conditions, the Company recognizes compensation cost of the original estimate of the derived service period, based on its initial valuation analysis regardless of market performance. Stock awards that contain performance or market vesting conditions are excluded from diluted earnings per share computations until the contingency is met as of the end of that reporting period.
	Income Taxes
	Income taxes are accounted for using the asset and liability method. Deferred income taxes are provided for temporary differences in recognizing certain income, expense and credit items for financial reporting purposes and tax reporting purposes. Such deferred income taxes primarily relate to the difference between the tax bases of assets and liabilities and their financial reporting amounts. Deferred tax assets and liabilities are measured by applying enacted statutory tax rates applicable to the future years in which deferred tax assets or liabilities are expected to be settled or realized.
	The Company records a valuation allowance when it determines, based on available positive and negative evidence, that it is more-likely-than-not that some portion or all of its deferred tax assets will not be realized. The Company determines the realizability of its deferred tax assets primarily based on the reversal of existing taxable temporary differences and projections of future taxable income (exclusive of reversing temporary differences and carryforwards). In evaluating such projections, the Company considers its history of profitability, the competitive environment, the overall outlook for the online marketing industry and general economic conditions. In addition, the Company considers the time frame over which it would take to utilize the deferred tax assets prior to their expiration.
	For certain tax positions, the Company uses a more-likely-than-not threshold based on the technical merits of the tax position taken. Tax positions that meet the more-likely-than-not recognition threshold are measured at the largest amount of tax benefits determined on a cumulative probability basis, which are more-likely-than-not to be realized upon ultimate settlement in the financial statements. The Company’s policy is to recognize interest and penalties related to income tax matters in income tax expense.
	Earnings Per Share
	Basic net income/loss per common share excludes dilution for potential common stock issuances and is computed by dividing net income/loss by the weighted-average number of common shares outstanding for the period. Diluted net income/loss per common share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock. Diluted earnings per share assumes the exercise of stock options and warrants using the treasury stock method. The Company's restricted stock awards are participating securities when the Company has net income. The weighted-average shares outstanding-common stock has been adjusted to reflect share repurchases made during the three months ended March 31, 2015. See Footnote 8 for more information pertaining to the Company's share repurchases.
	The following table provides a reconciliation of the numerators and denominators used in computing basic and diluted net loss per common share:
		Three Months Ended March 31,
		2015				2014
		(In thousands, except share and per share data)
	Net loss	$	(7,325	)		$	(782	)
	Net loss per share - common stock:
	Basic	$	(0.22	)		$	(0.02	)
	Diluted	$	(0.22	)		$	(0.02	)
	Weighted-average shares outstanding-common stock, basic and dilutive	33,793,582				33,822,835
	The following is a summary of common stock equivalents for the securities outstanding during the respective periods that have been excluded from the earnings per share calculations as their impact was anti-dilutive.
		Three Months Ended March 31,
		2015			2014
	Stock options and restricted stock	925,118			843,687
	Recent Pronouncements
	In May 2014, FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue (Topic 606): Revenue from Contracts with Customers, which will replace existing revenue recognition standards and significantly expand the disclosure requirements for revenue arrangements. The new standard will be effective for the Company beginning on January 1, 2017 (i.e., beginning with the first quarter 2017 interim financial statements). The new standard may be adopted retrospectively for all periods presented, or adopted using a modified retrospective approach. Under the retrospective approach, the calendar year 2016 and 2015 financial statements would be adjusted to reflect the effects of applying the new standard to those periods. Under the modified retrospective approach, the new standard would only be applied for the period beginning January 1, 2017 to new contracts and those contracts that are not yet complete at January 1, 2017, with a cumulative catch-up adjustment recorded to beginning retained earnings for existing contracts that still require performance. In April 2015, the FASB proposed a one-year delay in the effective date of the standard to January 1, 2018, with an option that would permit companies to adopt the standard as early as the original effective date. Early adoption prior to the original effective date is not permitted. A final decision on the effective date is expected in 2015. The Company is currently evaluating the methods of adoption allowed by the new standard and the impact the standard is expected to have on the Company's financial statements and related disclosures.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets
	3	Goodwill and Intangible Assets
	The change in the carrying value of goodwill for the three months ended March 31, 2015 is as follows (in thousands):
	Balance as of December 31, 2014	$	103,525
	Translation adjustments	(2,235		)
	Balance as of March 31, 2015	$	101,290
	The carrying values of the Company’s amortizable acquired intangible assets are as follows (in thousands):
			31-Mar-15							31-Dec-14
			Gross		Accumulated			Net		Gross		Accumulated			Net
			Carrying		Amortization			Carrying		Carrying		Amortization			Carrying
			Amount					Amount		Amount					Amount
	Acquired methodologies/technology		$	6,392	$	(5,245	)	$	1,147	$	6,612	$	(5,180	)	$	1,432
	Customer relationships		17,543		(12,578		)	4,965		19,201		(12,970		)	6,231
	Panel		1,593		(1,555		)	38		1,617		(1,521		)	96
	Intellectual property		13,552		(5,905		)	7,647		13,562		(5,528		)	8,034
	Trade names		1,529		(1,529		)	—		1,690		(1,690		)	—
			$	40,609	$	(26,812	)	$	13,797	$	42,682	$	(26,889	)	$	15,793
	Amortization expense related to intangible assets was approximately $1.4 million and $2.0 million for the three months ended March 31, 2015 and 2014, respectively.
	The weighted average remaining amortization period by major asset class as of March 31, 2015, is as follows:
		(In years)
	Acquired methodologies/technology	2.8
	Customer relationships	2.3
	Panel	0.2
	Intellectual property	6.5
	The estimated future amortization of acquired intangible assets as of March 31, 2015 is as follows:
		(In thousands)
	2015	3,420
	2016	3,805
	2017	2,920
	2018	1,108
	2019	518
	Thereafter	2,026
		$	13,797
	As of December 31, 2014, the Company determined that it had met the held for sale criteria as defined in Accounting Standard Codification 360: Property, Plant, and Equipment. As such, the Company presents assets and liabilities held for sale related to CSWS on its consolidated balance sheets. However, CSWS does not qualify for discontinued operations financial presentation, as management expects to have continuing involvement with CSWS by providing certain services to the buyer. The Company recorded a $9.7 million impairment charge during the year ended December 31, 2014, which reduced the carrying amount of CSWS intangible assets to zero and was calculated as the difference between the letters of intent that the Company has received and the carrying value of CSWS.

Longterm_Debt_and_Other_Financ

Long-term Debt and Other Financing Arrangement	3 Months Ended
	Mar. 31, 2015
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term Debt and Other Financing Arrangement
	4	Long-term Debt and Other Financing Arrangement
	Capital Leases
	The Company has a lease financing arrangement with Banc of America Leasing & Capital, LLC in the amount of $12.5 million, of which the Company can utilize approximately $7.4 million as of March 31, 2015, for future capital leases. This arrangement allows the Company to lease new software, hardware and other computer equipment as it expands its technology infrastructure in support of its business growth. Under this arrangement, the Company may enter into new capital leases prior to May 31, 2015. Some of the amounts the Company has utilized to date under this arrangement have not lowered the amount available for future capital leases, because those amounts have been assigned by Banc of America Leasing & Capital, LLC under separate third-party arrangements. In addition, the Company enters into capital leases under non-committed arrangements, typically directly with equipment manufacturers. Future minimum payments under capital leases with initial terms of one year or more are as follows:
		(In thousands)
	2015	$	11,712
	2016	11,620
	2017	5,101
	2018	239
	2019	16
	Total minimum lease payments	28,688
	Less amount representing interest	(1,426		)
	Present value of net minimum lease payments	27,262
	Less current portion	(14,239		)
	Capital lease obligations, long-term	$	13,023
	During the three months ended March 31, 2015 and 2014, the Company acquired $4.6 million and $2.0 million, respectively, in computer hardware and software through the issuance of capital leases.
	Revolving Credit Facility
	On September 26, 2013, the Company entered into a Credit Agreement (the "Credit Agreement") with several banks (the "Lenders"). Bank of America, N.A. (“Bank of America”) is the administrative agent, and lead lender of this Revolving Credit Facility. The Credit Agreement provides for a five-year revolving credit facility of $100.0 million, which includes a $10.0 million sublimit for issuance of standby letters of credit, a $10.0 million sublimit for swing line loans and a $10.0 million sublimit for alternative currency lending. The maturity date of the Credit Agreement is September 26, 2018.  The Credit Agreement also contains an expansion option permitting the Company to request an increase of the credit facility up to an aggregate additional $50.0 million, subject to certain conditions. Borrowings under the Revolving Credit Facility shall be used towards working capital and other general corporate purposes as well as for the issuance of letters of credit. On June 23, 2014, the Company executed the First Amendment to the Credit Agreement. This amendment reset the equity repurchase limit to $50.0 million and permits the Company to repurchase equity interests in the Company outside the $50.0 million limit during the remainder of the five-year revolver term, provided that certain financial thresholds are met.
	Base rate loans and swing line loans will bear interest at the Base Rate plus the Applicable Rate, as such terms are defined in the Credit Agreement and summarized below. The Base Rate is the highest rate of the following: (a) the Federal Funds rate plus 0.50%, (b) the publicly announced Bank of America prime rate, and (c) the Eurocurrency rate, as defined in the Credit Agreement plus 1.0%. The Applicable Rate for base rate loans and swing line loans is 0.50% to 1.50% depending on the Company’s funded debt-to-EBITDA ratio at the end of each fiscal quarter. Amounts supporting letters of credit bear interest at the applicable rate for revolving loans. Each Eurocurrency rate loan will bear interest at the Eurocurrency Rate plus the Applicable Rate ranging from 1.50% to 2.50% depending on the Company's funded debt-to-EBITDA ratio at the end of each fiscal quarter. Beginning on September 26, 2013 through the maturity date of the five-year revolver term, the Company is obligated to pay a fee, payable quarterly in arrears, based on the average unused portion of the available amounts under the Credit Agreement at a rate of 0.20% to 0.35% per annum depending on the Company’s funded debt-to-EBITDA ratio at the end of each fiscal quarter.
	The Credit Agreement contains various usual and customary covenants, including, but not limited to: financial covenants requiring maximum funded debt-to-EBITDA ratio, cash flow-to-fixed charge ratios and a minimum liquidity during equity repurchase periods as well as covenants relating to the Company’s ability to dispose of assets, make certain acquisitions, be acquired, incur indebtedness, grant liens and make certain investments. As of March 31, 2015 the Company was in full compliance with all covenants contained in the Credit Agreement.
	As of March 31, 2015, the Company did not have an outstanding balance under the terms of the Credit Agreement.
	The Company maintains letters of credit in lieu of security deposits with respect to certain office leases as well as to satisfy performance guarantees under certain contracts. As of March 31, 2015, $3.6 million in letters of credit were outstanding, leaving $6.4 million available for additional letters of credit. These letters of credit may be reduced periodically provided the Company meets the conditional criteria of each related lease agreement.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Contingencies
	From time to time, the Company is exposed to unasserted potential claims encountered in the normal course of business. Although the outcome of any legal proceeding cannot be predicted with certainty, management believes that the final outcome and resolution of current matters, if any will not materially affect the Company’s consolidated financial position or results of operations.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes
	6	Income Taxes
	The Company’s income tax provision for interim periods is calculated by applying its estimated annual effective tax rate on ordinary income before taxes to year-to-date ordinary book income before taxes. The income tax effects of any extraordinary, significant unusual or infrequent items not included in ordinary book income are determined separately and recognized in the period in which the items arise.
	During the three months ended March 31, 2015, the Company recorded an income tax benefit of $2.3 million, resulting in an effective tax rate of 24.1%. During the three months ended March 31, 2014, the Company recorded an income tax provision of $0.1 million, resulting in an effective tax rate of (18.5)%. These effective tax rates differ from the Federal statutory rate of 35% primarily due to the effects of valuation allowances associated with foreign losses, state income taxes, foreign income taxes, nondeductible expenses such as certain stock compensation and meals and entertainment, unrecognized tax benefits and changes in statutory tax rates which took effect during the year.
	As of March 31, 2015 and December 31, 2014, the Company had unrecognized tax benefits of approximately $1.4 million, of which approximately $0.9 million is netted against certain deferred tax assets on the accompanying consolidated balance sheets. The Company recognizes accrued interest and penalties related to unrecognized tax benefits in income tax expense. As of March 31, 2015 and December 31, 2014, the amount of accrued interest and penalties on unrecognized tax benefits was approximately $0.6 million.
	The Company or one of its subsidiaries files income tax returns in the U.S. Federal jurisdiction and various state and foreign jurisdictions. For income tax returns filed by the Company, the Company is no longer subject to U.S. Federal examinations by tax authorities for years before 2011 or state and local examinations by tax authorities for years before 2010 although tax attribute carryforwards generated prior to these years may still be adjusted upon examination by tax authorities.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Stockholders' Equity
	7	Stockholders’ Equity
	1999 Stock Option Plan and 2007 Equity Incentive Plan
	Prior to the effective date of the registration statement for the Company’s initial public offering (“IPO”) on June 26, 2007, eligible employees and non-employees were awarded options to purchase shares of the Company’s common stock, restricted stock or restricted stock units pursuant to the Company’s 1999 Stock Plan (the “1999 Plan”). Upon the effective date of the registration statement of the Company’s IPO, the Company ceased using the 1999 Plan for the issuance of new equity awards. Upon the closing of the Company’s IPO on July 2, 2007, the Company established its 2007 Equity Incentive Plan, as amended (the “2007 Plan” and together with the 1999 Plan, the “Plans”). The 1999 Plan will continue to govern the terms and conditions of outstanding awards granted thereunder, but no further shares are authorized for new awards under the 1999 Plan. As of March 31, 2015 and December 31, 2014, the Plans provided for the issuance of a maximum of approximately 12.7 million shares and 11.4 million shares, respectively, of common stock. In addition, the 2007 Plan provides for annual increases in the number of shares available for issuance thereunder on the first day of each fiscal year beginning with the 2008 fiscal year, equal to the lesser of: (i) 4% of the outstanding shares of the Company’s common stock on the last day of the immediately preceding fiscal year; (ii) 1,800,000 shares; or (iii) such other amount as the Company’s Board of Directors may determine. The vesting period of options granted under the Plans is determined by the Board of Directors, although, for service-based options the vesting has historically been generally ratable over a four-year period. Options generally expire 10 years from the date of the grant. Effective January 1, 2015, the shares available for grant increased by 1,366,979 pursuant to the automatic share reserve increase provision under the 2007 Plan. Accordingly, as of March 31, 2015, a total of 2,580,322 shares were available for future grant under the 2007 Plan.
	The Company estimates the fair value of stock option awards using the Black-Scholes option-pricing formula and a single option award approach. The fair value of market-based stock options and restricted stock units is determined using a Monte Carlo simulation embedded in a lattice model. The fair value of restricted stock awards is based on the closing price of our common stock on the date of grant. The Company then amortizes the fair value of awards expected to vest on a ratable straight-line basis over the requisite service periods of the awards, which is generally the period from the grant date to the end of the vesting period.
	During the twelve months ended December 31, 2014, the Company granted market-based options and restricted units to its named executive officers and other key management personnel of 1,969,453 and 283,356, respectively.
	These market-based grants were designed to motivate management to drive enterprise value toward a significantly higher market capitalization over the next three years. In addition, the 30-day price average and bifurcated vesting provisions described below were intended to promote sustainability of the achievement.
	The awards were granted effective as of November 7, 2014, with an exercise price and fair value at the time of grant of $42.92 per share, the closing price of the Company’s common stock as reported by the NASDAQ Global Market on November 7, 2014. Each of the awards is subject to market-based vesting, as follows:
	•	66% of the shares subject to each option award, and 48% of the restricted stock units will vest in the event that the closing price of the Company’s common stock as reported by the NASDAQ Global Market exceeds an average of $48 per share for a consecutive thirty calendar day period prior to November 7, 2017. Such target represents a 25% increase over the 30-day average closing price of the Company’s common stock as reported by the NASDAQ Global Market ending on the date of award.
	•	10% of the shares subject to each option award, and 10% of the restricted stock units will vest in the event that the closing price of the Company’s common stock as reported by the NASDAQ Global Market exceeds an average of $50 per share for a consecutive thirty-day period prior to November 7, 2017.
	•	14% of the shares subject to each option award, and 22% of the restricted stock units will vest in the event that the closing price of the Company’s common stock as reported by the NASDAQ Global Market exceeds an average of $55 per share for a consecutive thirty-day period prior to November 7, 2017.
	•	10% of the shares subject to each option award, and 20% of the restricted stock units will vest in the event that the closing price of the Company’s common stock as reported by the NASDAQ Global Market exceeds an average of $60 per share for a consecutive thirty-day period prior to November 7, 2017.
	The following are the weighted-average assumptions used in valuing the stock options granted during the year ended December 31, 2014 and a discussion of the Company’s assumptions.
		Year Ended
		December 31,
		2014
	Dividend yield	0	%
	Expected volatility	34.11	%
	Risk-free interest rate	0.96	%
	Expected life of options (in years)	3
	Dividend yield — The Company has never declared or paid dividends on its common stock and has no plans to pay dividends in the foreseeable future.
	Expected volatility — Volatility is a measure of the amount by which a financial variable such as a share price has fluctuated (historical volatility) or is expected to fluctuate (expected volatility) during a period. The expected volatility is calculated based on the weekly closing price volatility of the Company’s common stock for the period from its initial public offering until the grant date.
	Risk-free interest rate — The Company used rates on the grant date of zero-coupon government bonds with maturities over periods covering the term of the awards, converted to continuously compounded forward rates.
	Expected life of the options — This is the period of time that the options granted are expected to remain outstanding.
	A summary of the Plans is presented below:
			Number of		Weighted-			Weighted		Aggregate
			Shares		Average			Average		Intrinsic
					Exercise			Remaining		Value (in
					Price			Contractual		thousands)
								Term
								(in years)
	Options outstanding at December 31, 2014		1,980,308		$	42.71		9.81		7,359
	Options granted		—		—			—		—
	Options exercised		(59,214	)	39.91			—		664
	Options forfeited		—		—			—		—
	Options expired		—		—			—		—
	Options outstanding at March 31, 2015		1,921,094		$	42.8		9.59		16,136
	Options exercisable at March 31, 2015		1,443,087		$	42.76		9.58		12,178
	The intrinsic value of exercised stock options is calculated based on the difference between the exercise price and the quoted market price of our common stock as of the close of the exercise date. The aggregate intrinsic value of options exercised for the three months ended March 31, 2015 was $0.7 million. The aggregate intrinsic value for all options outstanding were $16.1 million and $7.4 million, respectively, under the Company’s stock plans as of March 31, 2015 and December 31, 2014. The aggregate intrinsic value for all options exercisable was $12.2 million as of March 31, 2015. The weighted average remaining contractual lives for all options outstanding were 9.59 and 9.81 years, respectively, under the Company’s stock plans as of March 31, 2015 and December 31, 2014. The weighted average remaining contractual live for all options exercisable was 9.58 years as of March 31, 2015. As of March 31, 2015, total unrecognized compensation expense related to outstanding options and exercisable options was $2.4 million, which will be fully recognized during 2015.
	The Company’s nonvested stock awards are comprised of restricted stock and restricted stock units. The Company has a right of repurchase on such shares that lapse at a rate of twenty-five percent (25)% of the total shares awarded at each successive anniversary of the initial award date, provided that the employee continues to provide services to the Company. In the event that an employee terminates his or her employment with the Company, any shares that remain unvested and consequently subject to the right of repurchase shall be automatically reacquired by the Company at the original purchase price paid by the employee. During the three months ended March 31, 2015, 1,650 forfeited shares of restricted stock have been repurchased by the Company at no cost and were subsequently retired.
	A summary of the status for nonvested stock awards as of March 31, 2015 is presented as follows:
	Nonvested Stock Awards		Restricted		Restricted		Total Number		Weighted
			Stock		Stock		of Shares		Average
					Units		Underlying		Grant-Date
							Awards		Fair
									Value
	Nonvested at December 31, 2014		476,993		1,410,581		1,887,574		$	26.88
	Granted		175,287		209,685		384,972		46.84
	Vested		(496,763	)	(545,669	)	(1,042,432	)	33.02
	Forfeited		(1,650	)	(33,551	)	(35,201	)	47.24
	Nonvested at March 31, 2015		153,867		1,041,046		1,194,913		$	27.36
	The aggregate intrinsic value for all non-vested shares of restricted stock and restricted stock units outstanding as of March 31, 2015 was $59.6 million. The aggregate intrinsic value of restricted stock and restricted stock units vested during the three months ended March 31, 2015 was $45.4 million.
	The Company granted nonvested stock awards at no cost to recipients during the three months ended March 31, 2015. As of March 31, 2015, total unrecognized compensation expense related to non-vested restricted stock and restricted stock units was $28.2 million, which the Company expects to recognize over a weighted-average period of approximately 0.9 years. Total unrecognized compensation expense may be increased or decreased in future periods for subsequent grants or forfeitures.
	Of the 1,042,432 shares of the Company’s restricted stock and restricted stock units vesting during the three months ended March 31, 2015, the Company repurchased 430,778 shares at an aggregate purchase price of approximately $21.7 million pursuant to the stockholder’s right under the Plans to elect to use common stock to satisfy tax withholding obligations. The repurchased shares were subsequently retired.
	Shares Reserved for Issuance
	At March 31, 2015, the Company had reserved for future issuance the following shares of common stock:
	Common stock available for future issuances under the Plans	2,580,322
	Common stock reserved for outstanding options and restricted stock units	2,962,140
		5,542,462

Share_Repurchases

Share Repurchases	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Share Repurchases
	8	Share Repurchases
	As part of the Company's share repurchase program, shares may be purchased in open market transactions or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Exchange Act. The timing, manner, price and amount of any repurchases will be determined at our discretion, and the share repurchase program may be suspended, terminated or modified at any time for any reason. Shares repurchased are classified as Treasury Stock. Details of the share repurchases during the three months ended March 31, 2015 and 2014 under the Company's share repurchase program were as follows:
		Three Months Ended March 31,
		2015 (1)	2014 (2)
	(Amounts in millions, except share and per share data)
	Total number of shares repurchased	80,661	755,373
	Average price paid per share	46.56	$28.46
	Total value of shares repurchased (as measured at time of repurchase)	$3.80	$21.50
	(1) June 2014 Share Repurchase Program
	On June 5, 2014 the Company announced that its board of directors had approved the repurchase of up to an additional $50.0 million of our common stock. Such repurchases may be made from time to time subject to pre-determined price and volume guidelines established by our board of directors and commenced on June 6, 2014. As of March 31, 2015, there was $45.4 million remaining under the share repurchase program.
	(2) June 2013 Share Repurchase Program
	On June 3, 2013 the Company announced that its board of directors had approved the repurchase of up to $50 million of the Company's common stock. Such repurchases may be made from time to time subject to pre-determined price and volume guidelines established by the Company's board of directors and commenced on June 4, 2013. As of March 31, 2014, there was $28.5 million remaining under the share repurchase program. This repurchase program concluded on May 29, 2014 and resulted in the repurchase of $49.4 million of shares (as measured at the time of repurchase).

Geographic_Information

Geographic Information	3 Months Ended
	Mar. 31, 2015
Segments, Geographical Areas [Abstract]
Geographic Information
	9	Geographic Information
	The Company attributes revenues to customers based on the location of the customer. The composition of the Company’s sales to unaffiliated customers between those in the United States and those in other locations for the three months ended March 31, 2015 and 2014 is set forth below:
			Three Months Ended March 31,
			2015		2014
			(In thousands)
	United States		$	64,086	$	54,154
	Europe		14,176		13,533
	Canada		3,209		3,225
	Other		5,858		5,987
	Total Revenues		$	87,329	$	76,899
	The composition of the Company’s property and equipment between those in the United States and those in other countries as of the end of each period is set forth below:
			31-Mar-15		31-Dec-14
			(In thousands)
	United States		$	41,649	$	38,240
	Europe		2,904		3,375
	Canada		166		195
	Other		651		555
	Total		$	45,370	$	42,365

Subsequent_Events

Subsequent Event(s)	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Event(s)
	10	Subsequent Event(s)
	Material Definitive Agreement
	On April 1, 2015, the Company closed a Stock Purchase Agreement with WPP plc, and its affiliates ("WPP") pursuant to which WPP agreed to sell all of its outstanding equity in its subsidiary Conniaco B.V. to the Company and in exchange for 4.45% of the Company's outstanding shares of common stock. The Company and the Purchaser also closed an additional Stock Purchase Agreement on April 1, 2015 pursuant to which the Company issued and sold and the Purchaser purchased 4,438,353 shares of the Company's common stock for an aggregate purchase price of approximately $204.7 million. As part of the transaction, the Company entered into a Strategic Alliance Agreement with WPP Group USA, Inc., a Delaware corporation ("Parent Stockholder"), on behalf of itself and its affiliates, including The Kantar Group ("Kantar Group"), pursuant to which WPP Group USA, Inc. and the Company will collaborate on cross-media audience measurement business outside the United States. The required disclosures for this transaction will be made when the Company has completed its analysis.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation
	The accompanying interim consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and accounts have been eliminated upon consolidation. The Company consolidates investments where it has a controlling financial interest. The usual condition for controlling financial interest is ownership of a majority of the voting interest and, therefore, as a general rule, ownership, directly or indirectly, of more than 50% of the outstanding voting shares is a condition indicating consolidation. All of the Company's subsidiaries are wholly owned.
Unaudited Interim Financial Information	Unaudited Interim Financial Information
	The consolidated interim financial statements included in this quarterly report on Form 10-Q have been prepared by the Company without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures normally included in consolidated interim financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. However, the Company believes that the disclosures contained in this quarterly report comply with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (the “Exchange Act”), as amended, for a quarterly report on Form 10-Q and are adequate to make the information presented not misleading. The consolidated interim financial statements included herein, reflect all adjustments (consisting of normal recurring adjustments) which are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. These consolidated interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, filed February 20, 2015 with the SEC. The results of operations for the three months ended March 31, 2015 are not necessarily indicative of the results to be anticipated for the entire year ending December 31, 2015 or thereafter. All references to March 31, 2015 and 2014 or to the three months ended March 31, 2015 and 2014 in the notes to the consolidated interim financial statements are unaudited.
Use of Estimates	Use of Estimates
	The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the reported amounts of revenue and expense during the reporting periods. Significant estimates and assumptions are inherent in the analysis and the measurement of deferred tax assets, the identification and quantification of income tax liabilities due to uncertain tax positions, recoverability of intangible assets, other long-lived assets and goodwill, accruals related to outstanding litigation, the collectability of accounts receivable and the allowance for doubtful accounts. The Company bases its estimates on historical experience and assumptions that it believes are reasonable. Actual results could differ from those estimates.
Fair Value Measurements	Fair Value Measurements
	The Company evaluates the fair value of certain assets and liabilities using the fair value hierarchy. Fair value is an exit price representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the Company applies the three-tier value hierarchy which prioritizes the inputs used in measuring fair value as follows:
	Level 1 — observable inputs such as quoted prices in active markets;
	Level 2 — inputs other than the quoted prices in active markets that are observable either directly or indirectly;
	Level 3 — unobservable inputs of which there is little or no market data, which require the Company to develop its own assumptions.
	The Company does not currently have any assets or liabilities that are measured at fair value on a recurring basis. However, cash equivalents, accounts receivable, prepaid expenses and other assets, accounts payable, accrued expenses, deferred revenue, deferred rent and capital lease obligations reported in the consolidated balance sheets equal or approximate their respective fair values because of their short term nature.
Accounts Receivable	Accounts Receivable
	Accounts receivable are recorded at the invoiced amount and are non-interest bearing. The Company generally grants uncollateralized credit terms to its customers and maintains an allowance for doubtful accounts to reserve for potentially uncollectible receivables. Allowances are based on management’s judgment, which considers historical experience and specific knowledge of accounts where collectability may not be probable. The Company makes provisions based on historical bad debt experience, a specific review of all significant outstanding invoices and an assessment of general economic conditions. If the financial condition of a customer deteriorates, resulting in an impairment of its ability to make payments, additional allowances may be required. Included within accounts receivable are unbilled accounts receivable, which relate to situations in which the Company has recognized revenue for services performed prior to invoicing a customer, but for which we have the legal right to invoice the customer. Typically, unbilled accounts receivable are invoiced in the following period.
Revenue Recognition	Revenue Recognition
	The Company recognizes revenues when the following fundamental criteria are met: (i) persuasive evidence of an arrangement exists, (ii) delivery has occurred or the services have been rendered, (iii) the fee is fixed or determinable, and (iv) collection of the resulting receivable is reasonably assured.
	The Company generates revenues by providing access to the Company’s online database or delivering information obtained from the database, usually in the form of periodic reports. Revenues are typically recognized on a straight-line basis over the period in which access to data or reports is provided, which generally ranges from three to twenty-four months. Sales taxes remitted to government authorities are recorded on a net basis.
	Revenues are also generated through survey services under contracts ranging in term from two months to one year. Survey services consist of survey and questionnaire design with subsequent data collection, analysis and reporting. At the outset of an arrangement, total arrangement consideration is allocated between the development of the survey questionnaire and subsequent data collection, analysis and reporting services based on relative selling price. Revenue allocated to the survey questionnaire is recognized when it is delivered and revenue allocated to the data collection, analysis and reporting services is recognized on a straight-line basis over the estimated data collection period once the survey or questionnaire design has been delivered. Any change in the estimated data collection period results in an adjustment to revenues recognized in future periods.
	Certain of the Company’s arrangements contain multiple elements, consisting of the various services the Company offers. Multiple element arrangements typically consist of either subscriptions to multiple online products or a subscription to the Company’s online database combined with customized services. The Company accounts for these arrangements in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2009-13, Multiple Deliverable Revenue Arrangements, which requires the Company to allocate arrangement consideration at the inception of an arrangement to all deliverables, if they represent a separate unit of accounting, based on their relative selling prices. The guidance establishes a hierarchy to determine the selling price to be used for allocating arrangement consideration to deliverables: (i) vendor-specific objective evidence of fair value (“VSOE”), (ii) third-party evidence of selling price (“TPE”) if VSOE is not available, or (iii) an estimated selling price (“ESP”) if neither VSOE nor TPE are available. VSOE generally exists only when the Company sells the deliverable separately and is the price actually charged by the Company for that deliverable on a stand-alone basis. ESP reflects the Company’s estimate of what the selling price of a deliverable would be if it was sold regularly on a stand-alone basis.
	The Company has concluded it generally does not have VSOE for its arrangements, and TPE is generally not available because the Company’s service offerings are highly differentiated and the Company is unable to obtain reliable information on the products and pricing practices of the Company’s competitors. As such, ESP is generally used to allocate the total arrangement consideration at the arrangement inception based on each element’s relative selling price.
	The Company’s process for determining ESP involves management’s judgments based on multiple factors that may vary depending upon the unique facts and circumstances related to each product suite and deliverable. The Company determines ESP by considering several external and internal factors including, but not limited to, current pricing practices, pricing concentrations such as industry, channel, customer class or geography, internal costs and market penetration of a product or service. The total arrangement consideration is allocated to each of the elements based on the relative selling price. If the ESP is determined as a range of selling prices, the mid-point of the range is used in the relative-selling-price method. Once the total arrangement consideration has been allocated to each deliverable based on the relative allocation of the arrangement fee, the Company commences revenue recognition for each deliverable on a stand-alone basis as the data or service is delivered. ESP will be analyzed on an annual basis or more frequently if management deems it likely that changes in the estimated selling prices have occurred.
	Generally, contracts are non-refundable and non-cancellable. In the event a portion of a contract is refundable, revenue recognition is delayed until the refund provisions lapse. A limited number of customers have the right to cancel their contracts by providing a written notice of cancellation. In the event that a customer cancels its contract, the customer is not entitled to a refund for prior services, and will be charged for costs incurred plus services performed up to the cancellation date.
	Advance payments are recorded as deferred revenues until services are delivered or obligations are met and revenue can be recognized. Deferred revenues represent the excess of amounts invoiced over amounts recognized as revenues.
	Multiple contracts with a single counterparty that are negotiated simultaneously and are considered contemporaneous are accounted for as one arrangement.  If there are multiple contracts with one counterparty that are deemed independent of one another, they are accounted for as separate arrangements.
	The Company accounts for nonmonetary transactions under ASC 845, Nonmonetary Transactions. Nonmonetary transactions with commercial substance are recorded at the estimated fair value of assets surrendered including cash, if cash is less than 25% of the fair value of the overall exchange, unless the fair value of the assets received is more clearly evident, in which case the fair value of the asset received is used to estimate fair value for the exchange.
	In 2013, the Company entered into an agreement to exchange certain data assets with a corporation.  In Q4 2014, the Company and the corporation modified the existing agreement, where the parties will provide additional data assets. A member of the Company’s Board of Directors also serves as a member of the Board of Directors of that corporation and therefore, the Company has considered the corporation to be a related party. The transaction was considered to have commercial substance under the guidance in ASC 845 and the Company estimated the fair value of the services delivered based on similar monetary transactions with third parties.  No cash was exchanged in this transaction.  The Company also considered the guidance in ASC 850, Related Party Disclosures.
	During the three months ended March 31, 2015 and 2014, the Company recognized $3.8 million and $2.2 million, respectively, of revenue related to nonmonetary transactions, of which $2.1 million and $1.7 million, respectively, was attributable to the related party transaction. During the three months ended March 31, 2015 and 2014, the Company recognized $4.2 million and $1.2 million, respectively, in expense related to nonmonetary transactions, of which $2.0 million and $0.8 million, respectively, was attributable to the related party transaction. Due to timing differences in the delivery and receipt of the respective nonmonetary assets exchanged, expense recognized in each period is different from the amount of revenue recognized.
Stock-Based Compensation	Stock-Based Compensation
	The Company estimates the fair value of stock-based awards on the date of grant. The fair value of stock options with only service conditions is determined using the Black-Scholes option-pricing model. The fair value of market-based stock options and restricted stock units is determined using a Monte Carlo simulation embedded in a lattice model. The fair value of restricted stock awards is based on the closing price of the Company’s common stock on the date of grant. The determination of the fair value of the Company’s stock option awards, restricted stock units, and restricted stock awards is based on a variety of factors including, but not limited to, the Company’s common stock price, expected stock price volatility over the expected life of awards, and actual and projected exercise behavior. Additionally, the Company has estimated forfeitures for stock-based awards at the dates of grant based on historical experience and adjusted for future expectation. The forfeiture estimate is revised as necessary if actual forfeitures differ from these estimates.
	The Company issues restricted stock awards where restrictions lapse upon the passage of time (service vesting), achieving performance targets, or some combination of these restrictions. For those restricted stock awards with only service conditions, the Company recognizes compensation cost on a straight-line basis over the explicit service period. For awards with both performance and service conditions, the Company starts recognizing compensation cost over the remaining service period, when it is probable the performance condition will be met. For stock awards that contain market vesting conditions, the Company recognizes compensation cost of the original estimate of the derived service period, based on its initial valuation analysis regardless of market performance. Stock awards that contain performance or market vesting conditions are excluded from diluted earnings per share computations until the contingency is met as of the end of that reporting period.
Income Taxes	Income Taxes
	Income taxes are accounted for using the asset and liability method. Deferred income taxes are provided for temporary differences in recognizing certain income, expense and credit items for financial reporting purposes and tax reporting purposes. Such deferred income taxes primarily relate to the difference between the tax bases of assets and liabilities and their financial reporting amounts. Deferred tax assets and liabilities are measured by applying enacted statutory tax rates applicable to the future years in which deferred tax assets or liabilities are expected to be settled or realized.
	The Company records a valuation allowance when it determines, based on available positive and negative evidence, that it is more-likely-than-not that some portion or all of its deferred tax assets will not be realized. The Company determines the realizability of its deferred tax assets primarily based on the reversal of existing taxable temporary differences and projections of future taxable income (exclusive of reversing temporary differences and carryforwards). In evaluating such projections, the Company considers its history of profitability, the competitive environment, the overall outlook for the online marketing industry and general economic conditions. In addition, the Company considers the time frame over which it would take to utilize the deferred tax assets prior to their expiration.
	For certain tax positions, the Company uses a more-likely-than-not threshold based on the technical merits of the tax position taken. Tax positions that meet the more-likely-than-not recognition threshold are measured at the largest amount of tax benefits determined on a cumulative probability basis, which are more-likely-than-not to be realized upon ultimate settlement in the financial statements. The Company’s policy is to recognize interest and penalties related to income tax matters in income tax expense.
Earnings Per Share	Earnings Per Share
	Basic net income/loss per common share excludes dilution for potential common stock issuances and is computed by dividing net income/loss by the weighted-average number of common shares outstanding for the period. Diluted net income/loss per common share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock. Diluted earnings per share assumes the exercise of stock options and warrants using the treasury stock method. The Company's restricted stock awards are participating securities when the Company has net income. The weighted-average shares outstanding-common stock has been adjusted to reflect share repurchases made during the three months ended March 31, 2015. See Footnote 8 for more information pertaining to the Company's share repurchases.
	The following table provides a reconciliation of the numerators and denominators used in computing basic and diluted net loss per common share:
		Three Months Ended March 31,
		2015				2014
		(In thousands, except share and per share data)
	Net loss	$	(7,325	)		$	(782	)
	Net loss per share - common stock:
	Basic	$	(0.22	)		$	(0.02	)
	Diluted	$	(0.22	)		$	(0.02	)
	Weighted-average shares outstanding-common stock, basic and dilutive	33,793,582				33,822,835
	The following is a summary of common stock equivalents for the securities outstanding during the respective periods that have been excluded from the earnings per share calculations as their impact was anti-dilutive.
		Three Months Ended March 31,
		2015			2014
	Stock options and restricted stock	925,118			843,687
Recent Pronouncements	Recent Pronouncements
	In May 2014, FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue (Topic 606): Revenue from Contracts with Customers, which will replace existing revenue recognition standards and significantly expand the disclosure requirements for revenue arrangements. The new standard will be effective for the Company beginning on January 1, 2017 (i.e., beginning with the first quarter 2017 interim financial statements). The new standard may be adopted retrospectively for all periods presented, or adopted using a modified retrospective approach. Under the retrospective approach, the calendar year 2016 and 2015 financial statements would be adjusted to reflect the effects of applying the new standard to those periods. Under the modified retrospective approach, the new standard would only be applied for the period beginning January 1, 2017 to new contracts and those contracts that are not yet complete at January 1, 2017, with a cumulative catch-up adjustment recorded to beginning retained earnings for existing contracts that still require performance. In April 2015, the FASB proposed a one-year delay in the effective date of the standard to January 1, 2018, with an option that would permit companies to adopt the standard as early as the original effective date. Early adoption prior to the original effective date is not permitted. A final decision on the effective date is expected in 2015. The Company is currently evaluating the methods of adoption allowed by the new standard and the impact the standard is expected to have on the Company's financial statements and related disclosures.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Schedule of Computing Basic and Diluted Net (Loss) Income Per Common Share	The following table provides a reconciliation of the numerators and denominators used in computing basic and diluted net loss per common share:
		Three Months Ended March 31,
		2015				2014
		(In thousands, except share and per share data)
	Net loss	$	(7,325	)		$	(782	)
	Net loss per share - common stock:
	Basic	$	(0.22	)		$	(0.02	)
	Diluted	$	(0.22	)		$	(0.02	)
	Weighted-average shares outstanding-common stock, basic and dilutive	33,793,582				33,822,835
Summary of Common Stock Equivalents for the Securities Outstanding	The following is a summary of common stock equivalents for the securities outstanding during the respective periods that have been excluded from the earnings per share calculations as their impact was anti-dilutive.
		Three Months Ended March 31,
		2015			2014
	Stock options and restricted stock	925,118			843,687

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying Value of Goodwill	The change in the carrying value of goodwill for the three months ended March 31, 2015 is as follows (in thousands):
	Balance as of December 31, 2014	$	103,525
	Translation adjustments	(2,235		)
	Balance as of March 31, 2015	$	101,290
Schedule of Acquired Intangible Assets	The carrying values of the Company’s amortizable acquired intangible assets are as follows (in thousands):
			31-Mar-15							31-Dec-14
			Gross		Accumulated			Net		Gross		Accumulated			Net
			Carrying		Amortization			Carrying		Carrying		Amortization			Carrying
			Amount					Amount		Amount					Amount
	Acquired methodologies/technology		$	6,392	$	(5,245	)	$	1,147	$	6,612	$	(5,180	)	$	1,432
	Customer relationships		17,543		(12,578		)	4,965		19,201		(12,970		)	6,231
	Panel		1,593		(1,555		)	38		1,617		(1,521		)	96
	Intellectual property		13,552		(5,905		)	7,647		13,562		(5,528		)	8,034
	Trade names		1,529		(1,529		)	—		1,690		(1,690		)	—
			$	40,609	$	(26,812	)	$	13,797	$	42,682	$	(26,889	)	$	15,793
Weighted Average Remaining Amortization Period	The weighted average remaining amortization period by major asset class as of March 31, 2015, is as follows:
		(In years)
	Acquired methodologies/technology	2.8
	Customer relationships	2.3
	Panel	0.2
	Intellectual property	6.5
Estimated Future Amortization of Acquired Intangible Assets	The estimated future amortization of acquired intangible assets as of March 31, 2015 is as follows:
		(In thousands)
	2015	3,420
	2016	3,805
	2017	2,920
	2018	1,108
	2019	518
	Thereafter	2,026
		$	13,797

Longterm_Debt_and_Other_Financ1

Long-term Debt and Other Financing Arrangement (Tables)	3 Months Ended
	Mar. 31, 2015
Long-term Debt and Capital Lease Obligations [Abstract]
Schedule of Future Minimum Lease Payments for Capital Leases	In addition, the Company enters into capital leases under non-committed arrangements, typically directly with equipment manufacturers. Future minimum payments under capital leases with initial terms of one year or more are as follows:
		(In thousands)
	2015	$	11,712
	2016	11,620
	2017	5,101
	2018	239
	2019	16
	Total minimum lease payments	28,688
	Less amount representing interest	(1,426		)
	Present value of net minimum lease payments	27,262
	Less current portion	(14,239		)
	Capital lease obligations, long-term	$	13,023

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Stock Option Activity	A summary of the Plans is presented below:
			Number of		Weighted-			Weighted		Aggregate
			Shares		Average			Average		Intrinsic
					Exercise			Remaining		Value (in
					Price			Contractual		thousands)
								Term
								(in years)
	Options outstanding at December 31, 2014		1,980,308		$	42.71		9.81		7,359
	Options granted		—		—			—		—
	Options exercised		(59,214	)	39.91			—		664
	Options forfeited		—		—			—		—
	Options expired		—		—			—		—
	Options outstanding at March 31, 2015		1,921,094		$	42.8		9.59		16,136
	Options exercisable at March 31, 2015		1,443,087		$	42.76		9.58		12,178
Nonvested Stock Awards	A summary of the status for nonvested stock awards as of March 31, 2015 is presented as follows:
	Nonvested Stock Awards		Restricted		Restricted		Total Number		Weighted
			Stock		Stock		of Shares		Average
					Units		Underlying		Grant-Date
							Awards		Fair
									Value
	Nonvested at December 31, 2014		476,993		1,410,581		1,887,574		$	26.88
	Granted		175,287		209,685		384,972		46.84
	Vested		(496,763	)	(545,669	)	(1,042,432	)	33.02
	Forfeited		(1,650	)	(33,551	)	(35,201	)	47.24
	Nonvested at March 31, 2015		153,867		1,041,046		1,194,913		$	27.36
Shares Reserved for Issuance	At March 31, 2015, the Company had reserved for future issuance the following shares of common stock:
	Common stock available for future issuances under the Plans	2,580,322
	Common stock reserved for outstanding options and restricted stock units	2,962,140
		5,542,462

Share_Repurchases_Tables

Share Repurchases (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Schedule of cash paid for share repurchases	ded, terminated or modified at any time for any reason. Shares repurchased are classified as Treasury Stock. Details of the share repurchases during the three months ended March 31, 2015 and 2014 under the Company's share repurchase program were as follows:
		Three Months Ended March 31,
		2015 (1)	2014 (2)
	(Amounts in millions, except share and per share data)
	Total number of shares repurchased	80,661	755,373
	Average price paid per share	46.56	$28.46
	Total value of shares repurchased (as measured at time of repurchase)	$3.80	$21.50
	(1) June 2014 Share Repurchase Program
	On June 5, 2014 the Company announced that its board of directors had approved the repurchase of up to an additional $50.0 million of our common stock. Such repurchases may be made from time to time subject to pre-determined price and volume guidelines established by our board of directors and commenced on June 6, 2014. As of March 31, 2015, there was $45.4 million remaining under the share repurchase program.
	(2) June 2013 Share Repurchase Program
	On June 3, 2013 the Company announced that its board of directors had approved the repurchase of up to $50 million of the Company's common stock. Such repurchases may be made from time to time subject to pre-determined price and volume guidelines established by the Company's board of directors and commenced on June 4, 2013. As of March 31, 2014, there was $28.5 million remaining under the share repurchase program. This repurchase program concluded on May 29, 2014 and resulted in the repurchase of $49.4 million of shares (as measured at the time of repurchase).

Geographic_Information_Tables

Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2015
Segments, Geographical Areas [Abstract]
Schedule of Revenues Based on Customer Location	The composition of the Company’s sales to unaffiliated customers between those in the United States and those in other locations for the three months ended March 31, 2015 and 2014 is set forth below:
		Three Months Ended March 31,
		2015		2014
		(In thousands)
	United States	$	64,086	$	54,154
	Europe	14,176		13,533
	Canada	3,209		3,225
	Other	5,858		5,987
	Total Revenues	$	87,329	$	76,899
Schedule of Composition of the Company's Property and Equipment	The composition of the Company’s property and equipment between those in the United States and those in other countries as of the end of each period is set forth below:
		31-Mar-15		31-Dec-14
		(In thousands)
	United States	$	41,649	$	38,240
	Europe	2,904		3,375
	Canada	166		195
	Other	651		555
	Total	$	45,370	$	42,365

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Narrative) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Summary Of Significant Accounting Policies [Line Items]
Percentage of holdings for consolidation	50.00%
Impairment of intangible assets
Percentage of the estimated fair value of assets surrendered including cash	25.00%
Revenue recognized in nonmonetary transactions	3,800,000	2,200,000
Nonmonetary Transaction, Gross Operating Revenue Recognized, Related Party	2,100,000	1,700,000
Expense related to nonmonetary transactions	4,200,000	1,200,000
Nonmonetary Transaction, Amount of Expense Recognized Related to Timing Difference	$2,000,000	$800,000
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenue Recognition Period	3 months
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenue Recognition Period	24 months
Service Arrangements [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenue Recognition Period	2 months
Service Arrangements [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenue Recognition Period	1 year

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Schedule of Useful Lives of Finite Lived Intangible Assets) (Detail)	3 Months Ended
	Mar. 31, 2015
Acquired Methodologies/Technology [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	3 years
Acquired Methodologies/Technology [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	7 years
Customer Relationships | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	3 years
Customer Relationships | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	7 years
Panel [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	7 years
Intellectual Property [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	7 years
Intellectual Property [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	13 years
Trade name | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	2 years
Trade name | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets useful life (in Years)	10 years

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Schedule of Computing Basic and Diluted Net (Loss) Income Per Common Share) (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Accounting Policies [Abstract]
Net loss	($7,325)	($782)
Net income per share - common stock: Basic (in dollars per share)	($0.22)	($0.02)
Net income per share - common stock: Diluted (in dollars per share)	($0.22)	($0.02)
Weighted-average shares outstanding-common stock, basic and dilutive (in shares)	33,793,582	33,822,835

Summary_of_Significant_Account6

Summary of Significant Accounting Policies (Summary of Common Stock Equivalents for the Securities Outstanding) (Detail) (Stock Options and Restricted Stock [Member])	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Stock Options and Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	925,118	843,687

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Carrying Value of Goodwill) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Goodwill [Roll Forward]
Balance as of December 31, 2014	$103,525
Translation adjustments	-2,235
Balance as of March 31, 2015	$101,290

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets (Narrative) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Translation adjustments	$2,235
Amortization expense related to intangible assets	$1,379	$1,955

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets (Schedule of Acquired Intangible Assets) (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Goodwill [Line Items]
Gross Carrying Amount	$40,609	$42,682
Accumulated Amortization	-26,812	-26,889
Net Carrying Amount	13,797	15,793
Acquired Methodologies/Technology [Member]
Goodwill [Line Items]
Gross Carrying Amount	6,392	6,612
Accumulated Amortization	-5,245	-5,180
Net Carrying Amount	1,147	1,432
Customer Relationships
Goodwill [Line Items]
Gross Carrying Amount	17,543	19,201
Accumulated Amortization	-12,578	-12,970
Net Carrying Amount	4,965	6,231
Panel [Member]
Goodwill [Line Items]
Gross Carrying Amount	1,593	1,617
Accumulated Amortization	-1,555	-1,521
Net Carrying Amount	38	96
Intellectual Property [Member]
Goodwill [Line Items]
Gross Carrying Amount	13,552	13,562
Accumulated Amortization	-5,905	-5,528
Net Carrying Amount	7,647	8,034
Trade name
Goodwill [Line Items]
Gross Carrying Amount	1,529	1,690
Accumulated Amortization	-1,529	-1,690
Net Carrying Amount	$0	$0

Goodwill_and_Intangible_Assets5

Goodwill and Intangible Assets (Weighted Average Remaining Amortization Period) (Detail)	3 Months Ended
	Mar. 31, 2015
Acquired Methodologies/Technology [Member]
Intangible Assets [Line Items]
Weighted average remaining amortization period	2 years 9 months 18 days
Customer Relationships
Intangible Assets [Line Items]
Weighted average remaining amortization period	2 years 3 months 18 days
Panel [Member]
Intangible Assets [Line Items]
Weighted average remaining amortization period	2 months 12 days
Intellectual Property [Member]
Intangible Assets [Line Items]
Weighted average remaining amortization period	6 years 6 months

Goodwill_and_Intangible_Assets6

Goodwill and Intangible Assets (Estimated Future Amortization of Acquired Intangible Assets) (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]
2014	$3,420
2015	3,805
2016	2,920
2017	1,108
2018	518
Thereafter	2,026
Net Carrying Amount	$13,797	$15,793

Longterm_Debt_and_Other_Financ2

Long-term Debt and Other Financing Arrangement (Narrative) (Detail) (USD $)	3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Sep. 26, 2013	Dec. 31, 2014
Schedule of Capitalization, Long-term Debt [Line Items]
Capital lease financing amount				$12,500,000
Utilization of capital lease				7,400,000
Line of Credit Facility, Equity Repurchase Limit				50,000,000
Letters of credit outstanding				3,600,000
Computer Equipment [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Asset acquired through issuance of capital leases	4,600,000	2,000,000
Letter of Credit [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity				6,400,000
Line of Credit [Member] | Bank of America | Revolving Credit Facility [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Revolving credit facility, maximum borrowing capacity			100,000,000
Higher borrowing capacity option			50,000,000
Line of Credit [Member] | Bank of America | Standby Letters of Credit [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Revolving credit facility, maximum borrowing capacity			10,000,000
Line of Credit [Member] | Bank of America | Swing Line [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Revolving credit facility, maximum borrowing capacity			10,000,000
Line of Credit [Member] | Bank of America | Alternative Currency Lending [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Revolving credit facility, maximum borrowing capacity			10,000,000
Fed Funds Rate [Member] | Line of Credit [Member] | Bank of America | Revolving Credit Facility [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Interest rate			0.50%
Eurocurrency Rate [Member] | Line of Credit [Member] | Bank of America | Revolving Credit Facility [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Interest rate			1.00%
Applicable Rate [Member] | Line of Credit [Member] | Bank of America | Revolving Credit Facility [Member] | Minimum [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Commitment fee percentage			0.20%
Applicable Rate [Member] | Line of Credit [Member] | Bank of America | Revolving Credit Facility [Member] | Maximum [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Commitment fee percentage			0.35%
Applicable Rate [Member] | Line of Credit [Member] | Bank of America | Base Rate and Swing Lines [Member] | Minimum [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Interest rate			0.50%
Applicable Rate [Member] | Line of Credit [Member] | Bank of America | Base Rate and Swing Lines [Member] | Maximum [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Interest rate			1.50%
Applicable Rate [Member] | Line of Credit [Member] | Bank of America | Eurocurrency Rate Loan [Member] | Minimum [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Interest rate			1.50%
Applicable Rate [Member] | Line of Credit [Member] | Bank of America | Eurocurrency Rate Loan [Member] | Maximum [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Interest rate			2.50%

Longterm_Debt_and_Other_Financ3

Long-term Debt and Other Financing Arrangement (Schedule of Future Minimum Payments for Capital Leases) (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Long-term Debt and Capital Lease Obligations [Abstract]
2014	$11,712
2015	11,620
2016	5,101
2017	239
2018	16
Total minimum lease payments	28,688
Less amount representing interest	-1,426
Present value of net minimum lease payments	27,262
Less current portion	-14,239	-13,353
Capital lease obligations, long-term	$13,023	$13,072

Income_Taxes_Narrative_Detail

Income Taxes (Narrative) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Income Tax Contingency [Line Items]
Effective tax rate	-24.10%	-18.50%
Income tax provision (benefit)	($2,329,000)	$122,000
Federal statutory rate	35.00%
Unrecognized tax benefits which impact effective tax rate			1,400,000
Unrecognized Tax Benefits, Net Against Deferred Tax Assets			900,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued			600,000
Additional Paid-in Capital [Member]
Income Tax Contingency [Line Items]
Changes In Excess Tax Benefit From Share Based Compensation Financing Activities	$0	$0

Stockholders_Equity_Narrative_

Stockholders' Equity (Narrative) (Detail) (USD $)	3 Months Ended	12 Months Ended	0 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Nov. 07, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic Value, Options exercised	$664,000
Number of shares authorized (in shares)		1,800,000
Percentage common stock outstanding shares	4.00%
Vesting period of options granted, in years	4 years
Options expiration period from date of grant, in years	10 years
Number of shares eligible to vest for three years (in shares)	384,972
Right of repurchase of shares awarded, lapse rate	-25.00%
Aggregate intrinsic value for non-vested shares		59,600,000
Total unrecognized compensation expense	2,400,000
Restricted stock units vested (in shares)	1,042,432
Total number of shares repurchased	430,778
Stock Repurchased and Retired During Period, Shares	1,650
Aggregate Intrinsic Value, Options outstanding	16,136,000	7,359,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	12,178,000
Weighted Average Remaining Contractual Term, Options outstanding (in years)	9 years 7 months 2 days	9 years 9 months 22 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	9 years 6 months 29 days
Weighted Average Grant-Date Fair Value, Forfeited (in dollars per share)	$47.24
1999 Stock Option Plan And 2007 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)		12,700,000		11,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Other Share Increase (Decrease)	1,366,979
2007 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (in shares)		2,580,322
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares eligible to vest for three years (in shares)	175,287
Restricted stock units vested (in shares)	496,763
Restricted Stock And Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation expense		28,200,000
Weighted-average period expected to recognize compensation expense (in years)	10 months 24 days
Aggregate purchase price of shares repurchased	$21,700,000
Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		1,969,453
Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		283,356
Weighted Average Grant-Date Fair Value, Forfeited (in dollars per share)			$42.92

Stockholders_Equity_Stock_Opti

Stockholders' Equity (Stock Option Activity) (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance	1,980,308
Options granted (in shares)	0
Options exercised (in shares)	-59,214
Options forfeited (in shares)	0
Options expired (in shares)	0
Options outstanding, ending balance	1,921,094	1,980,308
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted-Average Exercise Price, Options outstanding beginning balance (in dollars per share)	$42.71
Weighted-Average Exercise Price, Options granted (in dollars per share)	$0
Weighted-Average Exercise Price, Options exercised (in dollars per share)	$39.91
Weighted-Average Exercise Price, Options forfeited (in dollars per share)	$0
Weighted-Average Exercise Price, Options expired (in dollars per share)	$0
Weighted-Average Exercise Price, Options outstanding ending balance (in dollars per share)	$42.80	$42.71
Weighted Average Remaining Contractual Term, Options outstanding (in years)	9 years 7 months 2 days	9 years 9 months 22 days
Aggregate Intrinsic Value, Options exercised	$664
Aggregate Intrinsic Value, Options outstanding	16,136	7,359
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	1,443,087
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$42.76
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	9 years 6 months 29 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	$12,178

Stockholders_Equity_Nonvested_

Stockholders' Equity (Nonvested Stock Awards) (Detail) (USD $)	3 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate		0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested Stock Awards, Beginning balance (in shares)	1,887,574
Nonvested Stock Awards, Shares Granted (in shares)	384,972
Nonvested Stock Awards, Shares Vested (in shares)	-1,042,432
Nonvested Stock Awards, Shares Forfeited (in shares)	-35,201
Nonvested Stock Awards Shares, Ending balance (in shares)	1,194,913	1,887,574
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant-Date Fair Value, Beginning balance (in dollars per share)	$26.88
Weighted Average Grant-Date Fair Value, Granted (in dollars per share)	$46.84
Weighted Average Grant-Date Fair Value, Vested (in dollars per share)	$33.02
Weighted Average Grant-Date Fair Value, Forfeited (in dollars per share)	$47.24
Weighted Average Grant-Date Fair Value, Ending balance (in dollars per share)	$27.36	$26.88
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate		34.11%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		0.96%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term		3 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested Stock Awards, Beginning balance (in shares)	476,993
Nonvested Stock Awards, Shares Granted (in shares)	175,287
Nonvested Stock Awards, Shares Vested (in shares)	-496,763
Nonvested Stock Awards, Shares Forfeited (in shares)	-1,650
Nonvested Stock Awards Shares, Ending balance (in shares)	153,867
Restricted Stock Unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested Stock Awards, Beginning balance (in shares)	1,410,581
Nonvested Stock Awards, Shares Granted (in shares)	209,685
Nonvested Stock Awards, Shares Vested (in shares)	-545,669
Nonvested Stock Awards, Shares Forfeited (in shares)	-33,551
Nonvested Stock Awards Shares, Ending balance (in shares)	1,041,046
Restricted Stock And Restricted Stock Units [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding	$45.40
Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Period for Share Price Average Required for Shares to Vest		30 days
Share Price Increase Target Percentage		25.00%
Share-based Compensation Award, Tranche One [Member] | Employee Stock Option [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Percentage of Shares that Vest Based on Exceeding Market Average Share Price		66.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share Price Average, Minimum over Period		$48
Share-based Compensation Award, Tranche One [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Percentage of Shares that Vest Based on Exceeding Market Average Share Price		48.00%
Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Period for Share Price Average Required for Shares to Vest		30 days
Share-based Compensation Award, Tranche Two [Member] | Employee Stock Option [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Percentage of Shares that Vest Based on Exceeding Market Average Share Price		10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share Price Average, Minimum over Period		$50
Share-based Compensation Award, Tranche Two [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Percentage of Shares that Vest Based on Exceeding Market Average Share Price		10.00%
Share-based Compensation Award, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Period for Share Price Average Required for Shares to Vest		30 days
Share-based Compensation Award, Tranche Three [Member] | Employee Stock Option [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Percentage of Shares that Vest Based on Exceeding Market Average Share Price		14.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share Price Average, Minimum over Period		$55
Share-based Compensation Award, Tranche Three [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Percentage of Shares that Vest Based on Exceeding Market Average Share Price		22.00%
Share-based Compensation Award, Tranche Four [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Period for Share Price Average Required for Shares to Vest		30 days
Share-based Compensation Award, Tranche Four [Member] | Employee Stock Option [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Percentage of Shares that Vest Based on Exceeding Market Average Share Price		10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share Price Average, Minimum over Period		$60
Share-based Compensation Award, Tranche Four [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Percentage of Shares that Vest Based on Exceeding Market Average Share Price		20.00%

Stockholders_Equity_Shares_Res

Stockholders' Equity (Shares Reserved for Issuance) (Detail)	Dec. 31, 2014
Schedule Of Stock Options [Line Items]
Common stock reserved for future issuance	5,542,462
Stock Under Plans [Member]
Schedule Of Stock Options [Line Items]
Common stock reserved for future issuance	2,580,322
Stock Options And Restricted Stock Units [Member]
Schedule Of Stock Options [Line Items]
Common stock reserved for future issuance	2,962,140

Share_Repurchases_Details

Share Repurchases (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	29-May-14	Jun. 05, 2014	Jun. 03, 2013
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$45,400,000			$50,000,000
Total number of shares repurchased	430,778
Total value of shares repurchased (as measured at time of repurchase)	3,756,000	21,498,000
June 2014 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Total number of shares repurchased	80,661	755,373
Average price paid per share	$46.56	$28.46
Total value of shares repurchased (as measured at time of repurchase)	3,800,000	21,500,000
June 2013 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$28,500,000			$50,000,000
Total number of shares repurchased			49,400,000

Geographic_Information_Composi

Geographic Information (Composition of Company's Property and Equipment) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule Of Geographical Information [Line Items]
Total Revenues	$87,329	$76,899
Total	45,370		42,365
UNITED STATES
Schedule Of Geographical Information [Line Items]
Total Revenues	64,086	54,154
Total	41,649		38,240
Europe [Member]
Schedule Of Geographical Information [Line Items]
Total Revenues	14,176	13,533
Total	2,904		3,375
CANADA
Schedule Of Geographical Information [Line Items]
Total Revenues	3,209	3,225
Total	166		195
Other [Member]
Schedule Of Geographical Information [Line Items]
Total Revenues	5,858	5,987
Total	$651		$555

Subsequent_Events_Details

Subsequent Event(s) (Details) (WPP, Subsequent Event, USD $)	0 Months Ended
	Apr. 01, 2015	Apr. 01, 2015
WPP | Subsequent Event
Subsequent Event [Line Items]
Percentage of outstanding shares	4.45%	4.45%
Number of shares	4,438,353
Purchase price	$204,700,000

Uncategorized_Items

Uncategorized Items
[us-gaap_StockholdersEquity]	-13,109,000