View Filing Data

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2011	Oct. 20, 2011
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Trading Symbol	IT
Entity Registrant Name	GARTNER INC
Entity Central Index Key	0000749251
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		94,894,264

Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands

Sep. 30, 2011

Dec. 31, 2010

Current assets:

Cash and cash equivalents

$ 156,903

$ 120,181

Fees receivable, net

349,287

364,818

Deferred commissions

60,627

71,955

Prepaid expenses and other current assets

66,869

64,148

Total current assets

633,686

621,102

Property, equipment and leasehold improvements, net

57,109

47,614

Goodwill

510,227

510,265

^[1]

Intangible assets, net

7,798

13,584

Other assets

95,611

93,093

Total Assets

1,304,431

1,285,658

Current liabilities:

Accounts payable and accrued liabilities

183,599

247,733

Deferred revenues

598,393

523,263

Current portion of long-term debt

52,500

40,156

Total current liabilities

834,492

811,152

Long-term debt

157,500

180,000

Other liabilities

118,372

107,450

Total Liabilities

1,110,364

1,098,602

Stockholders' Equity

Preferred stock, $.01 par value, 5,000,000 shares authorized; none issued or outstanding

Common stock, $.0005 par value, 250,000,000 shares authorized; 156,234,415 shares issued for both periods

Additional paid-in capital

636,797

611,782

Accumulated other comprehensive income, net

5,810

14,638

Accumulated earnings

697,555

605,677

Treasury stock, at cost, 61,145,251 and 60,245,718 common shares, respectively

(1,146,173)

(1,045,119)

Total Stockholders' Equity

194,067

187,056

Total Liabilities and Stockholders' Equity

$ 1,304,431

$ 1,285,658

[1]	The Company does not have any accumulated goodwill impairment losses.

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2011	Dec. 31, 2010
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value	$ 0.0005	$ 0.0005
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	156,234,415	156,234,415
Treasury stock, shares	61,145,251	60,245,718

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues:
Research	$ 255,979	$ 214,680	$ 749,429	$ 634,448
Consulting	70,815	65,397	219,407	212,796
Events	18,990	16,045	72,058	58,906
Total revenues	345,784	296,122	1,040,894	906,150
Costs and expenses:
Cost of services and product development	142,696	125,897	428,473	387,279
Selling, general and administrative	148,461	127,488	442,891	388,378
Depreciation	6,638	6,194	19,143	19,218
Amortization of intangibles	739	2,531	5,788	7,994
Acquisition and integration charges		1,249		7,090
Total costs and expenses	298,534	263,359	896,295	809,959
Operating income	47,250	32,763	144,599	96,191
Interest expense, net	(2,282)	(3,005)	(7,863)	(9,569)
Other (expense) income, net	(541)	(373)	(1,494)	736
Income before income taxes	44,427	29,385	135,242	87,358
Provision for income taxes	13,963	9,310	43,364	27,767
Net income	$ 30,464	$ 20,075	$ 91,878	$ 59,591
Income per common share:
Basic	$ 0.32	$ 0.21	$ 0.95	$ 0.62
Diluted	$ 0.31	$ 0.20	$ 0.92	$ 0.60
Weighted average shares outstanding:
Basic	96,057	95,473	96,462	95,698
Diluted	98,259	98,797	99,467	99,584

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Operating activities:
Net income	$ 91,878	$ 59,591
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles	24,931	27,212
Stock-based compensation expense	24,750	23,298
Excess tax benefits from stock-based compensation	(22,458)	(12,575)
Deferred taxes	3,812	(6,699)
Amortization of debt issue costs	1,733	785
Changes in assets and liabilities:
Fees receivable, net	16,023	15,148
Deferred commissions	11,354	15,685
Prepaid expenses and other current assets	(6,241)	(3,212)
Other assets	2,051	(36,317)
Deferred revenues	74,021	59,811
Accounts payable, accrued, and other liabilities	(45,389)	(16,352)
Cash provided by operating activities	176,465	126,375
Investing activities:
Additions to property, equipment and leasehold improvements	(23,720)	(12,211)
Acquisitions (net of cash received)		(12,151)
Cash used in investing activities	(23,720)	(24,362)
Financing activities:
Proceeds from stock issued under stock plans	17,771	19,380
Proceeds from debt issuance	5,000	27,000
Payments on debt	(15,156)	(56,000)
Purchases of treasury stock	(141,214)	(76,476)
Excess tax benefits from stock-based compensation	22,458	12,575
Cash used by financing activities	(111,141)	(73,521)
Net increase in cash and cash equivalents	41,604	28,492
Effects of exchange rates on cash and cash equivalents	(4,882)	3,346
Cash and cash equivalents, beginning of period	120,181	116,574
Cash and cash equivalents, end of period	$ 156,903	$ 148,412

Business and Basis of Presentation

9 Months Ended

Sep. 30, 2011

Business and Basis of Presentation

Note 1 — Business and Basis of Presentation

Business. Gartner, Inc. (“Gartner” or the “Company”) is a global information technology research and advisory company with its headquarters in Stamford, Connecticut. Gartner delivers its principal products and services through three business segments: Research, Consulting, and Events. When used in these notes, the terms “Company,” “we,” “us,” or “our” refer to Gartner, Inc. and its consolidated subsidiaries.

Basis of presentation. These interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America, as defined in the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 270 for interim financial information and with the instructions to Securities and Exchange Commission (“SEC”) Rule 10-01 of Regulation S-X on Form 10-Q and should be read in conjunction with the consolidated financial statements and related notes of the Company filed in its Annual Report on Form 10-K for the year ended December 31, 2010.

The fiscal year of the Company represents the period from January 1 through December 31. In the opinion of management, all normal recurring accruals considered necessary for a fair presentation of financial position, results of operations and cash flows at the dates and for the periods presented herein have been included. The results of operations for the three and nine months ended September 30, 2011 may not be indicative of the results of operations for the remainder of 2011.

Principles of consolidation. The accompanying interim condensed consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries. All significant intercompany transactions and balances have been eliminated.

Use of estimates. The preparation of the accompanying interim condensed consolidated financial statements requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenues and expenses. Such estimates include the valuation of accounts receivable, goodwill, intangible assets, and other long-lived assets, as well as tax accruals and other liabilities. In addition, estimates are used in revenue recognition, income tax expense, performance-based compensation charges, depreciation and amortization, and the allowance for losses. Management believes its use of estimates in these interim condensed consolidated financial statements to be reasonable.

Management continuously evaluates and revises its estimates using historical experience and other factors, including the general economic environment and actions it may take in the future. We adjust such estimates when facts and circumstances dictate. However, these estimates may involve significant uncertainties and judgments and cannot be determined with precision. In addition, these estimates are based on management’s best judgment at a point in time. As a result, differences between our estimates and actual results could be material and would be reflected in the Company’s consolidated financial statements in future periods.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

+ References

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-Name Accounting Research Bulletin (ARB)
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+ Details

Comprehensive Income

9 Months Ended

Sep. 30, 2011

Comprehensive Income

Note 2 — Comprehensive Income

The components of Comprehensive income include net income, foreign currency translation adjustments, unrealized gains and losses on interest rate swaps, and deferred gains and losses on defined benefit pension plans. Amounts recorded in Comprehensive income were as follows (in thousands):


	Three Months Ended September 30,						Nine Months Ended September 30,

	2011			2010			2011			2010

Net income:	$	30,464		$	20,075		$	91,878		$	59,591
Other comprehensive loss, net of tax effect:
Foreign currency translation adjustments		(5,352	)		7,415			(3,828	)		1,086
Unrealized (loss) gain on interest rate swaps		(3,170	)		673			(4,902	)		2,257
Amortization of pension unrealized gain		(33	)		(56	)		(100	)		(169	)

Other comprehensive loss		(8,555	)		8,032			(8,830	)		3,174

Comprehensive income	$	21,909		$	28,107		$	83,048		$	62,765

- Definition

The entire disclosure for comprehensive income. Includes, but is not limited to, the following: 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Components of comprehensive income include: (1) foreign currency translation adjustments; (2) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (3) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (4) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (5) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (6) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (7) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans.

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+ Details

Computation of Earnings per Share

9 Months Ended

Sep. 30, 2011

Computation of Earnings per Share

Note 3 — Computation of Earnings per Share

The following table sets forth the reconciliation of basic and diluted earnings per share (in thousands, except per share data):


	Three Months Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011		2010


Numerator:
Net income used for calculating basic and diluted earnings per share	$	30,464	$	20,075	$	91,878	$	59,591


Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share		96,057		95,473		96,462		95,698
Common stock equivalents associated with stock-based compensation plans (1), (2)		2,202		3,324		3,005		3,886

Shares used in the calculation of diluted earnings per share		98,259		98,797		99,467		99,584


Basic earnings per share	$	0.32	$	0.21	$	0.95	$	0.62

Diluted earnings per share	$	0.31	$	0.20	$	0.92	$	0.60



(1)	For the three months ended September 30, 2011 and 2010, 1.6 million and 1.0 million of common stock equivalents, respectively, were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.

(2)	For the nine months ended September 30, 2011 and 2010, 0.3 million and 0.5 million of common stock equivalents, respectively, were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.

Stock-Based Compensation

9 Months Ended

Sep. 30, 2011

Stock-Based Compensation

Note 4 — Stock-Based Compensation

The Company grants stock-based compensation awards as an incentive for employees and directors to contribute to the Company’s long-term success. The Company currently awards stock-settled stock appreciation rights, service- and performance-based restricted stock units, and common stock equivalents. At September 30, 2011, the Company had approximately 6.4 million shares of its common stock, par value $.0005 per share (the “Common Stock”) available for awards of stock-based compensation under its 2003 Long-Term Incentive Plan.

The Company accounts for stock-based compensation in accordance with FASB ASC Topics 505 and 718, as interpreted by SEC Staff Accounting Bulletins No. 107 (“SAB No. 107”) and No. 110 (“SAB No. 110”). Stock-based compensation expense is based on the fair value of the award on the date of grant, which is recognized over the related service period, net of estimated forfeitures. The service period is the period over which the related service is performed, which is generally the same as the vesting period. At the present time, the Company issues treasury shares upon the exercise, release or settlement of stock-based compensation awards.

Determining the appropriate fair value model and calculating the fair value of stock compensation awards requires the input of certain complex and subjective assumptions, including the expected life of the stock compensation awards and the Common Stock price volatility. In addition, determining the appropriate amount of associated periodic expense requires management to estimate the amount of employee forfeitures and the likelihood of the achievement of certain performance targets. The assumptions used in calculating the fair value of stock compensation awards and the associated periodic expense represent management’s best estimates, but these estimates involve inherent uncertainties and the application of judgment. As a result, if factors change and the Company deems it necessary in the future to modify the assumptions it made or to use different assumptions, or if the quantity and nature of the Company’s stock-based compensation awards changes, then the amount of expense may need to be adjusted and future stock compensation expense could be materially different from what has been recorded in the current period.

Stock-Based Compensation Expense

The Company recognized the following amounts of stock-based compensation expense by award type in the periods indicated (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,

Award type:	2011		2010		2011		2010

Stock appreciation rights (SARs)	$	1.0	$	0.9	$	3.4	$	3.7
Common stock equivalents (CSEs)		0.1		0.2		0.4		0.4
Restricted stock units (RSUs)		6.7		6.2		21.0		19.2

Total	$	7.8	$	7.3	$	24.8	$	23.3

Stock-based compensation expense was recognized as follows in the Consolidated Statements of Operations for the periods indicated (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,

Amount recorded in:	2011		2010		2011		2010

Cost of services and product development	$	3.3	$	3.1	$	11.3	$	10.9
Selling, general and administrative		4.5		4.2		13.5		12.4

Total stock-based compensation expense	$	7.8	$	7.3	$	24.8	$	23.3

As of September 30, 2011, the Company had $49.6 million of total unrecognized stock-based compensation cost, which is expected to be expensed over the remaining weighted-average service period of approximately 2.2 years.

Stock-Based Compensation Awards

The following disclosures provide information regarding the Company’s stock-based compensation awards, all of which are classified as equity awards in accordance with FASB ASC Topic 505:

Stock Appreciation Rights

Stock-settled stock appreciation rights (SARs) are settled in common shares and are similar to stock options as they permit the holder to participate in the appreciation of the Common Stock. SARs may be settled in shares of Common Stock by the employee once the applicable vesting criteria have been met. SARs vest ratably over a four-year service period and expire seven years from the grant date. The fair value of SARs awards is recognized as compensation expense on a straight-line basis over four years. Presently, SARs are awarded only to the Company’s executive officers.

When SARs are exercised, the number of shares of Common Stock issued is calculated as follows: (1) the total proceeds from the SARs exercise (calculated as the closing price of the Common Stock on the date of exercise less the exercise price of the SARs, multiplied by the number of SARs exercised) is divided by (2) the closing price of the Common Stock on the exercise date. The Company withholds a portion of the shares of Common Stock issued upon exercise to satisfy minimum statutory tax withholding requirements. SARs recipients do not have any stockholder rights until after actual shares of Common Stock are issued in respect of the award, which is subject to the prior satisfaction of the vesting and other criteria relating to such grants.

The following table summarizes changes in SARs outstanding for the nine months ended September 30, 2011:


	SARs (in millions)			Per Share Weighted- Average Exercise Price		Per Share Weighted- Average Grant Date Fair Value		Weighted Average Remaining Contractual Term

Outstanding at December 31, 2010		2.5		$	17.22	$	6.62		4.55 years
Granted		0.4			38.05		13.58		6.40 years
Forfeited		—			—		—		n/a
Exercised		(0.3	)		16.96		6.62		n/a

Outstanding at September 30, 2011 (1), (2)		2.6		$	20.13	$	7.58		4.25 years

Vested and exercisable at September 30, 2011 (2)		1.2		$	17.71	$	6.67		3.29 years

n/a=not applicable




(1)	Approximately 1.4 million of these outstanding SARs were unvested. The Company expects that substantially all of these unvested awards will vest in future periods.

(2)	Total SARs outstanding had an intrinsic value of $39.2 million. SARs vested and exercisable had an intrinsic value of $20.6 million.

The fair value of the SARs was estimated on the date of grant using the Black-Scholes-Merton valuation model with the following weighted-average assumptions:


	Nine Months Ended September 30, (1)

	2011			2010

Expected dividend yield (2)		0	%		0	%
Expected stock price volatility (3)		38	%		40	%
Risk-free interest rate (4)		2.2	%		2.4	%
Expected life in years (5)		4.8			4.8


(1)	The Company did not make any SARs grants during the three months ended September 30, 2011 or 2010.

(2)	The dividend yield assumption is based on the history and expectation of the Company’s dividend payouts. Historically, Gartner has not paid cash dividends on its Common Stock.

(3)	The determination of expected stock price volatility was based on both historical Common Stock prices and implied volatility from publicly traded options in the Common Stock.

(4)	The risk-free interest rate is based on the yield of a U.S. Treasury security with a maturity similar to the expected life of the award.

(5)	The expected life represents a weighted-average estimate of the period of time the SARs are expected to be outstanding (that is, the period between the service inception date and the expected exercise date). The expected life in years is based on the “simplified” calculation permitted by SEC SAB No. 107. Under the simplified method, the expected life is calculated by taking the average of the vesting period plus the original contractual term and dividing by two.

Restricted Stock Units

Restricted stock units (RSUs) give the awardee the right to receive shares of Common Stock when the vesting conditions are met and the restrictions lapse, and each RSU that vests entitles the awardee to one common share. RSU awardees do not have any stockholder rights until after the common shares are released. The fair value of RSUs is determined on the date of grant based on the closing price of the Common Stock as reported by the New York Stock Exchange on that date. Service-based RSUs vest ratably over four years and are expensed on a straight-line basis over four years. Performance-based RSUs are subject to both performance and service conditions, vest ratably over four years, and are expensed on an accelerated basis.

The following table summarizes the changes in RSUs outstanding during the nine months ended September 30, 2011:


	Restricted Stock Units (RSUs) (in millions)			Per Share Weighted Average Grant Date Fair Value

Outstanding at December 31, 2010		3.9		$	16.52
Granted (1)		0.7			38.03
Vested and released		(1.4	)		17.22
Forfeited		(0.1	)		21.51

Outstanding at September 30, 2011 (2), (3)		3.1		$	21.50


(1)	The 0.7 million RSUs granted in 2011 consisted of 0.3 million target performance-based RSUs awarded to executives and 0.4 million service-based RSUs awarded to non-executive employees and certain board members. The 0.3 million performance-based RSUs represents the target amount of the award. The actual number of performance-based RSUs that will ultimately be granted will be between 0% and 200% of the target amount, depending on the performance metric achieved. For 2011, the performance metric is the dollar level of the Company’s subscription-based contract value at December 31, 2011. If the specified minimum level of achievement is not met, the performance-based RSUs will be forfeited in their entirety, and any compensation expense already recorded will be reversed.

(2)	The Company expects that substantially all of the outstanding awards will vest in future periods.

(3)	The weighted-average remaining contractual term of the outstanding RSUs is approximately 1.2 years.

Common Stock Equivalents

Common stock equivalents (CSEs) are convertible into Common Stock and each CSE entitles the holder to one common share. Members of our Board of Directors receive directors’ fees payable in CSEs unless they opt to receive up to 50% of the fees in cash. Generally, the CSEs have no defined term and are converted into common shares when service as a director terminates unless the director has elected an accelerated release. The fair value of the CSEs is determined on the date of grant based on the closing price of the Common Stock as reported by the New York Stock Exchange on that date. CSEs vest immediately and as a result are recorded as expense on the date of grant.

The following table summarizes the changes in CSEs outstanding during the nine months ended September 30, 2011:


	Common Stock Equivalents (RSUs)			Per Share Weighted Average Grant Date Fair Value

Outstanding at December 31, 2010		117,208		$	N/A
Granted		9,795			38.13
Converted to common shares		(12,390	)		N/A
Forfeited		—			N/A

Outstanding at September 30, 2011		114,613		$	N/A

N/A=not available

Stock Options

Historically, the Company granted stock options to employees that allowed them to purchase shares of Common Stock at a certain price. The Company has not made any stock option grants since 2006. All outstanding options are fully vested and there is no remaining unamortized cost. The Company received $15.2 million and $17.2 million in cash from option exercises in the nine months ended September 30, 2011 and 2010, respectively.

The following table summarizes the changes in stock options outstanding during the nine months ended September 30, 2011:


	Options in millions			Per Share Weighted- Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value (in millions)

Vested and outstanding at December 31, 2010		2.6		$	11.13		2.59 years	$	58.2
Expired		—			—		N/A		N/A
Exercised (1)		(1.3	)		11.41		N/A		N/A

Vested and outstanding at September 30, 2011		1.3		$	10.84		1.60 years	$	31.4

N/A=not applicable


(1)	Options exercised during the nine months ended September 30, 2011 had an intrinsic value of $35.7 million.

Employee Stock Purchase Plan

The Company has an employee stock purchase plan (the “ESP Plan”) under which eligible employees are permitted to purchase Common Stock through payroll deductions, which may not exceed 10% of an employee’s compensation (or $23,750 in any calendar year), at a price equal to 95% of the closing price of the Common Stock as reported by the New York Stock Exchange at the end of each offering period.

At September 30, 2011, the Company had approximately 1.4 million shares available for purchase under the ESP Plan. The ESP Plan is considered non-compensatory under FASB ASC Topic 718, and as a result the Company does not record compensation expense for employee share purchases. The Company received $2.6 million and $2.2 million in cash from share purchases under the ESP Plan in the nine months ended September 30, 2011 and 2010, respectively.

The Company’s Board of Directors and Stockholders approved a new 2011 Employee Stock Purchase that became effective September 1, 2011. The shares remaining available under the prior ESP Plan on August 31, 2011 were transferred to the new plan, and no additional shares were reserved for issuance under the new plan.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
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-Paragraph 1
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-Section 50
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

+ Details

Segment Information

9 Months Ended

Sep. 30, 2011

Segment Information

Note 5 — Segment Information

The Company manages its business through three reportable segments: Research, Consulting and Events. Research consists primarily of subscription-based research products, access to research inquiry, as well as peer networking services and membership programs. Consulting consists primarily of consulting, measurement engagements, and strategic advisory services. Events consists of various symposia, conferences, and exhibitions.

The Company evaluates reportable segment performance and allocates resources based on gross contribution margin. Gross contribution, as presented in the table below, is defined as operating income excluding certain Cost of services and product development and Selling, general and administrative expenses, depreciation, acquisition and integration charges, amortization of intangibles, and other charges. Certain bonus and fringe benefit costs included in consolidated Cost of services and product development are not allocated to segment expense. The accounting policies used by the reportable segments are the same as those used by the Company. There are no inter-segment revenues.

The Company does not identify or allocate assets, including capital expenditures, by reportable segment. Accordingly, assets are not reported by segment because the information is not available by segment and is not reviewed in the evaluation of segment performance or in making decisions in the allocation of resources.

The following tables present information about the Company’s reportable segments (in thousands):


Three Months Ended September 30, 2011:	Research		Consulting		Events		Consolidated

Revenues	$	255,979	$	70,815	$	18,990	$	345,784
Gross contribution		173,615		24,458		5,553		203,626
Corporate and other expenses								(156,376	)

Operating income								47,250
Interest expense, net								(2,282	)
Other expense, net								(541	)

Income before income taxes							$	44,427


Three Months Ended September 30, 2010:	Research		Consulting		Events		Consolidated

Revenues	$	214,680	$	65,397	$	16,045	$	296,122
Gross contribution		140,605		23,981		5,974		170,560
Corporate and other expenses								(137,797	)

Operating income								32,763
Interest expense, net								(3,005	)
Other expense, net								(373	)

Income before income taxes							$	29,385


Nine Months Ended September 30, 2011:	Research		Consulting		Events		Consolidated

Revenues	$	749,429	$	219,407	$	72,058	$	1,040,894
Gross contribution		506,420		78,820		28,533		613,773
Corporate and other expenses								(469,174	)

Operating income								144,599
Interest expense, net								(7,863	)
Other expense, net								(1,494	)

Income before income taxes							$	135,242


Nine Months Ended September 30, 2010:	Research		Consulting		Events		Consolidated

Revenues	$	634,448	$	212,796	$	58,906	$	906,150
Gross contribution		415,311		84,222		22,688		522,221
Corporate and other expenses								(426,030	)

Operating income								96,191
Interest expense, net								(9,569	)
Other income, net								736

Income before income taxes							$	87,358

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Publisher FASB
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

+ Details

Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2011

Goodwill and Intangible Assets

Note 6 — Goodwill and Intangible Assets

Goodwill

Goodwill represents the excess of the purchase price of acquired businesses over the estimated fair value of the tangible and identifiable intangible net assets acquired. The evaluation of goodwill is performed in accordance with FASB ASC Topic 350, which requires an annual assessment of potential goodwill impairment at the reporting unit level. A reporting unit can be an operating segment or a business if discrete financial information is prepared and reviewed by management. The Company has three reporting units: Research, Consulting, and Events.

In September 2011, the FASB issued Accounting Standards Update (“ASU”) No. 2011-08, Intangibles-Goodwill and Other – Testing Goodwill for Impairment (“ASU No. 2011-08”). ASU No. 2011-08 permits an entity to make a qualitative assessment of whether it is more likely than not that a reporting unit’s fair value is less than its carrying amount before automatically applying the two-step goodwill impairment test, which has been the required test since 2002. If it is concluded that this is the case, it is necessary to perform the currently prescribed two-step goodwill impairment test to determine the amount, if any, of impaired goodwill. Otherwise, the two-step goodwill impairment test is not required. The objective of ASU No. 2011-08 is to both simplify and reduce the on-going cost of goodwill impairment testing for both private and public companies. On September 30, 2011, the Company early adopted ASU No. 2011-08 and conducted a qualitative assessment of reporting unit goodwill. The Company concluded that the fair value of its reporting units was in excess of their carrying amounts, and the Company did not conduct the two-step goodwill impairment test. As a result, the adoption of ASU No. 2011-08 did not impact the Company’s results of operations, cash flows, or financial position.

The following table presents changes to the carrying amount of goodwill by reporting unit during the nine months ended September 30, 2011 (in thousands):


	Research			Consulting		Events		Total

Balance, December 31, 2010 (1)	$	368,521		$	99,817	$	41,927	$	510,265
Foreign currency translation adjustments		(69	)		17		14		(38	)

Balance, September 30, 2011	$	368,452		$	99,834	$	41,941	$	510,227


(1)	The Company does not have any accumulated goodwill impairment losses.

Amortizable Intangible Assets

The following tables present the carrying amounts of amortizable intangible assets as of the periods indicated (in thousands):


September 30, 2011	Content			Trade Name			Customer Relationships			Total

Gross cost	$	10,634		$	5,758		$	7,210		$	23,602
Accumulated amortization		(10,634	)		(2,015	)		(3,155	)		(15,804	)

Net	$	—		$	3,743		$	4,055		$	7,798


December 31, 2010	Content			Trade Name			Customer Relationships			Total

Gross cost	$	10,634		$	5,758		$	7,210		$	23,602
Accumulated amortization		(7,089	)		(1,152	)		(1,777	)		(10,018	)

Net	$	3,545		$	4,606		$	5,433		$	13,584

The Company’s amortizable intangible assets are charged against earnings over the following periods:


	Content		Trade Name		Customer Relationships

Useful Life (Years)		1.5		5		4

Aggregate amortization expense related to intangible assets was $0.7 million and $2.5 million for the three months ended September 30, 2011 and 2010, respectively, and $5.8 million and $8.0 million for the nine months ended September 30, 2011 and 2010, respectively.

The estimated future amortization expense by year from amortizable intangibles is as follows (in thousands):


2011 (remaining three months)	$	744
2012		2,955
2013		2,955
2014		1,144

	$	7,798

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Debt

9 Months Ended

Sep. 30, 2011

Debt

Note 7 — Debt

Credit Agreement

In December 2010, the Company entered into a new credit agreement with a syndication of banks led by JPMorgan Chase. The 2010 Credit Agreement provides for a five-year, $200.0 million term loan and a $400.0 million revolving credit facility. In addition, the 2010 Credit Agreement contains an expansion feature by which the term loan and revolving credit facility may be increased, at the Company’s option and under certain conditions, by up to an additional $150.0 million in the aggregate.

The term loan will be repaid in 19 consecutive quarterly installments, which commenced on March 31, 2011, plus a final payment due on December 22, 2015, and may be prepaid at any time without penalty or premium at the Company’s option. The revolving credit facility may be used for loans, and up to $40.0 million may be used for letters of credit. The revolving loans may be borrowed, repaid and re-borrowed until December 22, 2015, at which time all amounts borrowed must be repaid.

Amounts borrowed under the 2010 Credit Agreement bear interest at a rate equal to, at the Company’s option, either (i) the greatest of: the administrative agent’s prime rate; the average rate on overnight federal funds plus 1/2 of 1%; and the eurodollar rate (adjusted for statutory reserves) plus 1%, in each case plus a margin equal to between 0.50% and 1.25% depending on the Company’s leverage ratio as of the end of the four consecutive fiscal quarters most recently ended, or (ii) the eurodollar rate (adjusted for statutory reserves) plus a margin equal to between 1.50% and 2.25%, depending on the Company’s leverage ratio as of the end of the four consecutive fiscal quarters most recently ended.

The 2010 Credit Agreement contains certain customary restrictive loan covenants, including, among others, financial covenants requiring a maximum leverage ratio, a minimum interest expense coverage ratio, and covenants limiting the Company’s ability to incur indebtedness, grant liens, make acquisitions, be acquired, dispose of assets, pay dividends, repurchase stock, make capital expenditures, make investments and enter into certain transactions with affiliates. The Company was in full compliance with these covenants at September 30, 2011 and December 31, 2010.

The following table provides information regarding the Company’s borrowings (in thousands):


Description:	Amount Outstanding September 30, 2011		Annualized Contractual Interest Rate September 30, 2011 (2)			Amount Outstanding December 31, 2010

Term loans	$	185,000		1.87	%	$	200,000
Revolver (1)		25,000		1.80	%		20,156

Total	$	210,000				$	220,156


(1)	The Company had $371.9 million of available borrowing capacity on the revolver (not including the expansion feature) as of September 30, 2011.

(2)	The contractual rate on the term loan consisted of a 0.37% Eurodollar base rate plus a margin of 1.50%, while the contractual rate on the revolver consisted of a weighted-average Eurodollar base rate of 0.30% plus a margin of 1.50%. The Company has an interest rate swap contract which converts the floating Eurodollar base rate to a fixed base rate of 2.26% on $200.0 million of borrowings (see below). Including the impact of the swap, the annualized effective interest rate as of September 30, 2011 on $200.0 million of these borrowings was 3.76%.

Interest Rate Swap Hedge

The Company has a $200.0 million notional fixed-for-floating interest rate swap contract which it accounts for as a designated hedge of the forecasted interest payments on the Company’s variable rate borrowings. Under the swap terms, the Company pays a base fixed rate of 2.26% and in return receives a three-month Eurodollar base rate.

The Company accounts for the interest rate swap as a cash flow hedge in accordance with FASB ASC Topic 815. Since the swap is hedging forecasted interest payments, changes in the fair value of the swap are recorded in Other Comprehensive Income (“OCI”), as long as the swap continues to be a highly effective hedge of the designated interest rate risk. Any ineffective portion of change in the fair value of the hedge is recorded in earnings. At September 30, 2011, there was no ineffective portion of the hedge. The interest rate swap had a negative fair value to the Company of $10.3 million at September 30, 2011, which is recorded in OCI, net of tax effect.

Letters of Credit

The Company issues letters of credit and related guarantees in the ordinary course of business. At September 30, 2011 and December 31, 2010, the Company had outstanding letters of credit and guarantees of $4.8 million and $5.3 million, respectively.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

Equity and Stock Programs

9 Months Ended

Sep. 30, 2011

Equity and Stock Programs

Note 8 — Equity and Stock Programs

Share Repurchase Program

The Company has a board approved $500.0 million share repurchase program. Repurchases under the program may be made from time-to-time through open market purchases, private transactions, tender offers or other transactions. The amount and timing of repurchases will be subject to the availability of stock, prevailing market conditions, the trading price of the stock, the Company’s financial performance and other conditions. Repurchases may also be made from time-to-time in connection with the settlement of the Company’s shared-based compensation awards. Repurchases are funded from cash flow from operations or borrowings.

The Company’s share repurchase activity is included in the following table:


	Three Months Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011		2010

Number of shares repurchased (1)		1,543,069		48,904		3,886,521		3,188,945
Cost of repurchased shares (in thousands) (2)	$	53,354	$	1,372	$	141,214	$	76,475



(1)	The nine months ended September 30, 2011 includes 500,000 shares the Company repurchased directly from ValueAct Capital Master Fund L.P. in a private transaction.

(2)	As of September 30, 2011, the Company had $363.0 million remaining for share repurchases under its $500.0 million share repurchase program.

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph d

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 7, 11A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 3, 4, 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Paragraph 1
-Subparagraph (SX 210.3-04)
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

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+ Details

Income Taxes

9 Months Ended

Sep. 30, 2011

Income Taxes

Note 9 — Income Taxes

The provision for income taxes was $14.0 million for the three months ended September 30, 2011 compared to $9.3 million in the prior year quarter. The effective tax rate was 31.4% for the three months ended September 30, 2011 and 31.7% for the same period in 2010. The provision for income taxes was $43.4 million for the nine months ended September 30, 2011 compared to $27.8 million in the nine months ended September 30, 2010. The effective tax rate was 32.1% for the nine months ended September 30, 2011 and 31.8% for the same period in 2010.

At September 30, 2011 and December 31, 2010, the Company had gross unrecognized tax benefits of $19.1 million and $15.8 million, respectively. The increase of $3.3 million is primarily attributable to gross unrecognized tax benefits recorded during the period. It is reasonably possible that the gross unrecognized tax benefits will decrease by $2.8 million within the next 12 months, primarily due to settlements of outstanding audits and the expiration of the relevant statutes of limitation. At September 30, 2011 and December 31, 2010, the Company had Other liabilities of $16.3 million and $15.7 million, respectively, related to long term uncertain tax positions.

The Internal Revenue Service (“IRS”) has completed its examination of the Federal income tax return of the Company for the tax year ended December 31, 2007. In December 2010 the Company received a report of the audit findings. The Company disagrees with certain of the proposed adjustments and is disputing this matter through applicable IRS and judicial procedures, as appropriate. In the second quarter of 2011 the IRS commenced an audit of the 2008 and 2009 tax years. The Company continues to comply with all information requests and no material adjustments of the Company’s tax positions have been proposed at this time for the 2008 and 2009 tax years. Although the final resolution of these audits is uncertain and there are no assurances that the ultimate resolution will not exceed the amounts recorded, the Company believes that the ultimate disposition of these matters will not have a material adverse effect on its consolidated financial position, cash flows, or results of operations.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Derivatives and Hedging

9 Months Ended

Sep. 30, 2011

Derivatives and Hedging

Note 10 — Derivatives and Hedging

The Company enters into a limited number of derivative contracts to offset the potentially negative economic effects of interest rate and foreign exchange movements. The Company accounts for its outstanding derivative contracts in accordance with FASB ASC Topic 815, which requires all derivatives, to include derivatives designated as accounting hedges, to be recorded on the balance sheet at fair value.

The following tables provide information regarding the Company’s outstanding derivatives contracts (in thousands, except for number of outstanding contracts) as of the dates indicated:


September 30, 2011
Derivative Contract Type	Number of Outstanding Contracts		Notional Amounts		Fair Value Asset (Liability) (4)			Balance Sheet Line Item	Unrealized Loss Recorded in OCI

Interest Rate Swap (1)		1	$	200,000	$	(10,271	)	Other liabilities	$	(6,162	)
Interest Rate Swaps (2)		2		61,500		(662	)	Accrued liabilities		—
Foreign Currency Forwards (3)		15		71,140		(212	)	Accrued liabilities		—

Total		18	$	332,640	$	(11,145	)		$	(6,162	)


December 31, 2010
Derivative Contract Type	Number of Outstanding Contracts		Notional Amounts		Fair Value Asset (Liability) (4)			Balance Sheet Line Item	Unrealized Loss Recorded in OCI (1)

Interest Rate Swap (1)		1	$	200,000	$	(2,101	)	Other liabilities	$	(1,261	)
Interest Rate Swaps (2)		2		147,750		(3,966	)	Other liabilities		—
Foreign Currency Forwards (3)		63		250,220		618		Other current assets		—

Total		66	$	597,970	$	(5,449	)		$	(1,261	)



(1)	The Company entered into this interest rate swap on December 22, 2010. The Company designated and accounts for this swap as a cash flow hedge of the forecasted interest payments on borrowings (see Note 7 — Debt). As a result, changes in fair value of this swap are recognized in OCI, net of tax effect.

(2)	Changes in fair value of these swaps are recognized in earnings. Both swaps mature in January 2012.

(3)	The Company has foreign exchange transaction risk since it typically enters into transactions in the normal course of business that are denominated in foreign currencies that differ from the local functional currencies. The Company enters into short-term foreign currency forward exchange contracts to offset the economic effects of these foreign currency transaction risks. These contracts are accounted for at fair value with realized and unrealized gains and losses recognized in Other income (expense), net since the Company does not designate these contracts as hedges for accounting purposes. All of the outstanding contracts at September 30, 2011 matured by the end of October 2011.

(4)	See Note 11 — Fair Value Disclosures for the determination of the fair value of these instruments.

The Company’s derivative counterparties are all large investment grade financial institutions. The Company did not have any collateral arrangements with its derivative counterparties, and none of the derivative contracts contain credit-risk related contingent features.

The following table provides information regarding derivative gains and losses that have been recognized in the Condensed Consolidated Statements of Operations for the periods indicated (in thousands):


	Three Months Ended September 30,					Nine Months Ended September 30,

Amount recorded in:	2011			2010		2011		2010

Interest expense, net (1)	$	1,022		$	1,799	$	3,100	$	6,117
Other (income) expense, net (2)		(1,976	)		1,497		1,794		(1,413	)

Total (income) expense, net	$	(954	)	$	3,296	$	4,894	$	4,704



(1)	Includes interest expense (income) recognized on the Company’s interest rate swap contracts.

(2)	Includes realized and unrealized gains and losses on foreign currency forward contracts.

- Definition

The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

Fair Value Disclosures

9 Months Ended

Sep. 30, 2011

Fair Value Disclosures

Note 11 — Fair Value Disclosures

The Company’s financial instruments include cash equivalents, fees receivable from customers, accounts payable, and accruals which are normally short-term in nature. The Company believes the carrying amounts of these financial instruments reasonably approximates their fair value.

At September 30, 2011, the Company had $210.0 million of outstanding floating rate borrowings under its 2010 Credit Facility, which is carried at amortized cost. The Company believes the carrying amount of the debt reasonably approximates its fair value since the borrowings carry floating interest rates which reflect current market rates for similar instruments with comparable maturities.

FASB ASC Topic 820 provides a framework for measuring fair value and a valuation hierarchy based upon the transparency of inputs used in the valuation of an asset or liability. Classification within the hierarchy is based upon the lowest level of input that is significant to the resulting fair value measurement. The valuation hierarchy contains three levels:


•	Level 1 — Valuation inputs are unadjusted quoted market prices for identical assets or liabilities in active markets.

•	Level 2 — Valuation inputs are quoted prices for identical assets or liabilities in markets that are not active, quoted market prices for similar assets and liabilities in active markets and other observable inputs directly or indirectly related to the asset or liability being measured.

•	Level 3 — Valuation inputs are unobservable and significant to the fair value measurement.

The following table presents Company assets and liabilities measured at fair value on a recurring basis for the periods indicated (in thousands):


	Fair Value at September 30, 2011		Fair Value at December 31, 2010

Description
Assets:
Deferred compensation assets (1)	$	23,212	$	24,113
Foreign currency exchange forward contracts, net (2)		—		618

	$	23,212	$	24,731

Liabilities:
Interest rate swap contracts (3)	$	10,933	$	6,067
Foreign currency exchange forward contracts, net (2)		212		—

	$	11,145	$	6,067




(1)	The Company has two supplemental deferred compensation arrangements for the benefit of certain highly compensated officers, managers and other key employees. The assets consist of investments in money market and mutual funds, and company-owned life insurance. The money market and mutual funds consist of cash equivalents or securities traded in active markets, and the Company considers the fair value of these assets to be based on a Level 1 input. The value of the Company-owned life insurance is based on indirectly observable prices, which the Company considers to be a Level 2 input.

(2)	The Company enters into foreign currency exchange forward contracts to hedge the effects of adverse fluctuations in foreign currency exchange rates (see Note 10—Derivatives and Hedging). Valuation of the foreign currency forward contracts is based on foreign currency exchange rates in active markets, which the Company considers to be a Level 2 input.

(3)	The Company has three outstanding interest rate swap contracts (see Note 10—Derivatives and Hedging). To determine the fair value of the swaps, the Company relies on mark-to-market valuations prepared by third-party brokers based on observable interest rate yield curves, which the Company considers to be a Level 2 input.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-Topic 820
-SubTopic 10
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-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

+ Details

Employee Benefits

9 Months Ended

Sep. 30, 2011

Employee Benefits

Note 12 — Employee Benefits

Defined Benefit Pension Plans

The Company has defined-benefit pension plans in several of its international locations. Benefits paid under these plans are based on years of service and level of employee compensation. The Company’s defined benefit pension plans are accounted for in accordance with FASB ASC Topics 715 and 960. Net periodic pension expense was $0.6 million for both the three months ended September 30, 2011 and 2010, and $2.0 million and $1.8 million for the nine months ended September 30, 2011 and 2010, respectively.

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 8
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Emerging Issues Task Force (EITF)
-Number 03-2
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 30
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
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-Name FASB Staff Position (FSP)
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Implementation Guide (Q and A)
-Number FAS88
-Paragraph 63
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

+ Details

Commitments and Contingencies

9 Months Ended

Sep. 30, 2011

Commitments and Contingencies

Note 13 — Commitments and Contingencies

Contingencies

We are involved in legal proceedings and litigation arising in the ordinary course of business. We believe that the potential liability, if any, in excess of amounts already accrued from all proceedings, claims and litigation will not have a material effect on our financial position, cash flows, or results of operations when resolved in a future period.

The Company has various agreements that may obligate us to indemnify the other party with respect to certain matters. Generally, these indemnification clauses are included in contracts arising in the normal course of business under which we customarily agree to hold the other party harmless against losses arising from a breach of representations related to such matters as title to assets sold and licensed or certain intellectual property rights. It is not possible to predict the maximum potential amount of future payments under these indemnification agreements due to the conditional nature of the Company’s obligations and the unique facts of each particular agreement. Historically, payments made by us under these agreements have not been material. As of September 30, 2011, the Company did not have any indemnification agreements that would require material payments.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
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-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
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-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

+ Details

Comprehensive Income (Tables)

9 Months Ended

Sep. 30, 2011

Comprehensive Income

Amounts recorded in Comprehensive income were as follows (in thousands):


	Three Months Ended September 30,						Nine Months Ended September 30,

	2011			2010			2011			2010

Net income:	$	30,464		$	20,075		$	91,878		$	59,591
Other comprehensive loss, net of tax effect:
Foreign currency translation adjustments		(5,352	)		7,415			(3,828	)		1,086
Unrealized (loss) gain on interest rate swaps		(3,170	)		673			(4,902	)		2,257
Amortization of pension unrealized gain		(33	)		(56	)		(100	)		(169	)

Other comprehensive loss		(8,555	)		8,032			(8,830	)		3,174

Comprehensive income	$	21,909		$	28,107		$	83,048		$	62,765

Computation of Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2011

Reconciliation of Basic and Diluted Earnings Per Share

The following table sets forth the reconciliation of basic and diluted earnings per share (in thousands, except per share data):


	Three Months Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011		2010


Numerator:
Net income used for calculating basic and diluted earnings per share	$	30,464	$	20,075	$	91,878	$	59,591


Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share		96,057		95,473		96,462		95,698
Common stock equivalents associated with stock-based compensation plans (1), (2)		2,202		3,324		3,005		3,886

Shares used in the calculation of diluted earnings per share		98,259		98,797		99,467		99,584


Basic earnings per share	$	0.32	$	0.21	$	0.95	$	0.62

Diluted earnings per share	$	0.31	$	0.20	$	0.92	$	0.60



(1)	For the three months ended September 30, 2011 and 2010, 1.6 million and 1.0 million of common stock equivalents, respectively, were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.

(2)	For the nine months ended September 30, 2011 and 2010, 0.3 million and 0.5 million of common stock equivalents, respectively, were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.

Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Stock-Based Compensation Expense by Award Type

The Company recognized the following amounts of stock-based compensation expense by award type in the periods indicated (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,

Award type:	2011		2010		2011		2010

Stock appreciation rights (SARs)	$	1.0	$	0.9	$	3.4	$	3.7
Common stock equivalents (CSEs)		0.1		0.2		0.4		0.4
Restricted stock units (RSUs)		6.7		6.2		21.0		19.2

Total	$	7.8	$	7.3	$	24.8	$	23.3

Stock-Based Compensation Expense Recognized in the Consolidated Statements of Operations

Stock-based compensation expense was recognized as follows in the Consolidated Statements of Operations for the periods indicated (in millions):


	Three Months Ended September 30,				Nine Months Ended September 30,

Amount recorded in:	2011		2010		2011		2010

Cost of services and product development	$	3.3	$	3.1	$	11.3	$	10.9
Selling, general and administrative		4.5		4.2		13.5		12.4

Total stock-based compensation expense	$	7.8	$	7.3	$	24.8	$	23.3

Weighted-Average Assumptions Used to Determine the Fair Value of the SARs Grants on the Date of the Grant Using the Black-Scholes-Merton Valuation Model

The fair value of the SARs was estimated on the date of grant using the Black-Scholes-Merton valuation model with the following weighted-average assumptions:


	Nine Months Ended September 30, (1)

	2011			2010

Expected dividend yield (2)		0	%		0	%
Expected stock price volatility (3)		38	%		40	%
Risk-free interest rate (4)		2.2	%		2.4	%
Expected life in years (5)		4.8			4.8


(1)	The Company did not make any SARs grants during the three months ended September 30, 2011 or 2010.

(2)	The dividend yield assumption is based on the history and expectation of the Company’s dividend payouts. Historically, Gartner has not paid cash dividends on its Common Stock.

(3)	The determination of expected stock price volatility was based on both historical Common Stock prices and implied volatility from publicly traded options in the Common Stock.

(4)	The risk-free interest rate is based on the yield of a U.S. Treasury security with a maturity similar to the expected life of the award.

(5)	The expected life represents a weighted-average estimate of the period of time the SARs are expected to be outstanding (that is, the period between the service inception date and the expected exercise date). The expected life in years is based on the “simplified” calculation permitted by SEC SAB No. 107. Under the simplified method, the expected life is calculated by taking the average of the vesting period plus the original contractual term and dividing by two.

Summary of Changes in Stock Options Outstanding

The following table summarizes the changes in stock options outstanding during the nine months ended September 30, 2011:


	Options in millions			Per Share Weighted- Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value (in millions)

Vested and outstanding at December 31, 2010		2.6		$	11.13		2.59 years	$	58.2
Expired		—			—		N/A		N/A
Exercised (1)		(1.3	)		11.41		N/A		N/A

Vested and outstanding at September 30, 2011		1.3		$	10.84		1.60 years	$	31.4

N/A=not applicable


(1)	Options exercised during the nine months ended September 30, 2011 had an intrinsic value of $35.7 million.

Stock Appreciation Rights

Summary of Changes in Stock-Based Compensation Awards Outstanding

The following table summarizes changes in SARs outstanding for the nine months ended September 30, 2011:


	SARs (in millions)			Per Share Weighted- Average Exercise Price		Per Share Weighted- Average Grant Date Fair Value		Weighted Average Remaining Contractual Term

Outstanding at December 31, 2010		2.5		$	17.22	$	6.62		4.55 years
Granted		0.4			38.05		13.58		6.40 years
Forfeited		—			—		—		n/a
Exercised		(0.3	)		16.96		6.62		n/a

Outstanding at September 30, 2011 (1), (2)		2.6		$	20.13	$	7.58		4.25 years

Vested and exercisable at September 30, 2011 (2)		1.2		$	17.71	$	6.67		3.29 years

n/a=not applicable




(1)	Approximately 1.4 million of these outstanding SARs were unvested. The Company expects that substantially all of these unvested awards will vest in future periods.

(2)	Total SARs outstanding had an intrinsic value of $39.2 million. SARs vested and exercisable had an intrinsic value of $20.6 million.

Restricted Stock Units

Summary of Changes in Stock-Based Compensation Awards Outstanding

The following table summarizes the changes in RSUs outstanding during the nine months ended September 30, 2011:


	Restricted Stock Units (RSUs) (in millions)			Per Share Weighted Average Grant Date Fair Value

Outstanding at December 31, 2010		3.9		$	16.52
Granted (1)		0.7			38.03
Vested and released		(1.4	)		17.22
Forfeited		(0.1	)		21.51

Outstanding at September 30, 2011 (2), (3)		3.1		$	21.50


(1)	The 0.7 million RSUs granted in 2011 consisted of 0.3 million target performance-based RSUs awarded to executives and 0.4 million service-based RSUs awarded to non-executive employees and certain board members. The 0.3 million performance-based RSUs represents the target amount of the award. The actual number of performance-based RSUs that will ultimately be granted will be between 0% and 200% of the target amount, depending on the performance metric achieved. For 2011, the performance metric is the dollar level of the Company’s subscription-based contract value at December 31, 2011. If the specified minimum level of achievement is not met, the performance-based RSUs will be forfeited in their entirety, and any compensation expense already recorded will be reversed.

(2)	The Company expects that substantially all of the outstanding awards will vest in future periods.

(3)	The weighted-average remaining contractual term of the outstanding RSUs is approximately 1.2 years.

Common Stock Equivalents

Summary of Changes in Stock-Based Compensation Awards Outstanding

The following table summarizes the changes in CSEs outstanding during the nine months ended September 30, 2011:


	Common Stock Equivalents (RSUs)			Per Share Weighted Average Grant Date Fair Value

Outstanding at December 31, 2010		117,208		$	N/A
Granted		9,795			38.13
Converted to common shares		(12,390	)		N/A
Forfeited		—			N/A

Outstanding at September 30, 2011		114,613		$	N/A

N/A=not available

- Definition

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

+ References + Details

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References + Details

Segment Information (Tables)

9 Months Ended

Sep. 30, 2011

Information about the Reportable Segments

The following tables present information about the Company’s reportable segments (in thousands):


Three Months Ended September 30, 2011:	Research		Consulting		Events		Consolidated

Revenues	$	255,979	$	70,815	$	18,990	$	345,784
Gross contribution		173,615		24,458		5,553		203,626
Corporate and other expenses								(156,376	)

Operating income								47,250
Interest expense, net								(2,282	)
Other expense, net								(541	)

Income before income taxes							$	44,427


Three Months Ended September 30, 2010:	Research		Consulting		Events		Consolidated

Revenues	$	214,680	$	65,397	$	16,045	$	296,122
Gross contribution		140,605		23,981		5,974		170,560
Corporate and other expenses								(137,797	)

Operating income								32,763
Interest expense, net								(3,005	)
Other expense, net								(373	)

Income before income taxes							$	29,385


Nine Months Ended September 30, 2011:	Research		Consulting		Events		Consolidated

Revenues	$	749,429	$	219,407	$	72,058	$	1,040,894
Gross contribution		506,420		78,820		28,533		613,773
Corporate and other expenses								(469,174	)

Operating income								144,599
Interest expense, net								(7,863	)
Other expense, net								(1,494	)

Income before income taxes							$	135,242


Nine Months Ended September 30, 2010:	Research		Consulting		Events		Consolidated

Revenues	$	634,448	$	212,796	$	58,906	$	906,150
Gross contribution		415,311		84,222		22,688		522,221
Corporate and other expenses								(426,030	)

Operating income								96,191
Interest expense, net								(9,569	)
Other income, net								736

Income before income taxes							$	87,358

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2011

Changes to the Carrying Amount of Goodwill by Reporting Segments

The following table presents changes to the carrying amount of goodwill by reporting unit during the nine months ended September 30, 2011 (in thousands):


	Research			Consulting		Events		Total

Balance, December 31, 2010 (1)	$	368,521		$	99,817	$	41,927	$	510,265
Foreign currency translation adjustments		(69	)		17		14		(38	)

Balance, September 30, 2011	$	368,452		$	99,834	$	41,941	$	510,227


(1)	The Company does not have any accumulated goodwill impairment losses.

Carrying Amount of Amortizable Intangible Assets

The following tables present the carrying amounts of amortizable intangible assets as of the periods indicated (in thousands):


September 30, 2011	Content			Trade Name			Customer Relationships			Total

Gross cost	$	10,634		$	5,758		$	7,210		$	23,602
Accumulated amortization		(10,634	)		(2,015	)		(3,155	)		(15,804	)

Net	$	—		$	3,743		$	4,055		$	7,798


December 31, 2010	Content			Trade Name			Customer Relationships			Total

Gross cost	$	10,634		$	5,758		$	7,210		$	23,602
Accumulated amortization		(7,089	)		(1,152	)		(1,777	)		(10,018	)

Net	$	3,545		$	4,606		$	5,433		$	13,584

Useful Life of Amortizable Intangible Assets Charged Against Earnings

The Company’s amortizable intangible assets are charged against earnings over the following periods:


	Content		Trade Name		Customer Relationships

Useful Life (Years)		1.5		5		4

Estimated Future Amortization Expense by Year from Amortizable Intangibles

The estimated future amortization expense by year from amortizable intangibles is as follows (in thousands):


2011 (remaining three months)	$	744
2012		2,955
2013		2,955
2014		1,144

	$	7,798

Debt (Tables)

9 Months Ended

Sep. 30, 2011

Borrowings

The following table provides information regarding the Company’s borrowings (in thousands):


Description:	Amount Outstanding September 30, 2011		Annualized Contractual Interest Rate September 30, 2011 (2)			Amount Outstanding December 31, 2010

Term loans	$	185,000		1.87	%	$	200,000
Revolver (1)		25,000		1.80	%		20,156

Total	$	210,000				$	220,156


(1)	The Company had $371.9 million of available borrowing capacity on the revolver (not including the expansion feature) as of September 30, 2011.

(2)	The contractual rate on the term loan consisted of a 0.37% Eurodollar base rate plus a margin of 1.50%, while the contractual rate on the revolver consisted of a weighted-average Eurodollar base rate of 0.30% plus a margin of 1.50%. The Company has an interest rate swap contract which converts the floating Eurodollar base rate to a fixed base rate of 2.26% on $200.0 million of borrowings (see below). Including the impact of the swap, the annualized effective interest rate as of September 30, 2011 on $200.0 million of these borrowings was 3.76%.

Equity and Stock Programs (Tables)

9 Months Ended

Sep. 30, 2011

Share Repurchase Activity

The Company’s share repurchase activity is included in the following table:


	Three Months Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011		2010

Number of shares repurchased (1)		1,543,069		48,904		3,886,521		3,188,945
Cost of repurchased shares (in thousands) (2)	$	53,354	$	1,372	$	141,214	$	76,475



(1)	The nine months ended September 30, 2011 includes 500,000 shares the Company repurchased directly from ValueAct Capital Master Fund L.P. in a private transaction.

(2)	As of September 30, 2011, the Company had $363.0 million remaining for share repurchases under its $500.0 million share repurchase program.

Derivatives and Hedging (Tables)

9 Months Ended

Sep. 30, 2011

Outstanding Derivatives Contracts

The following tables provide information regarding the Company’s outstanding derivatives contracts (in thousands, except for number of outstanding contracts) as of the dates indicated:


September 30, 2011
Derivative Contract Type	Number of Outstanding Contracts		Notional Amounts		Fair Value Asset (Liability) (4)			Balance Sheet Line Item	Unrealized Loss Recorded in OCI

Interest Rate Swap (1)		1	$	200,000	$	(10,271	)	Other liabilities	$	(6,162	)
Interest Rate Swaps (2)		2		61,500		(662	)	Accrued liabilities		—
Foreign Currency Forwards (3)		15		71,140		(212	)	Accrued liabilities		—

Total		18	$	332,640	$	(11,145	)		$	(6,162	)


December 31, 2010
Derivative Contract Type	Number of Outstanding Contracts		Notional Amounts		Fair Value Asset (Liability) (4)			Balance Sheet Line Item	Unrealized Loss Recorded in OCI (1)

Interest Rate Swap (1)		1	$	200,000	$	(2,101	)	Other liabilities	$	(1,261	)
Interest Rate Swaps (2)		2		147,750		(3,966	)	Other liabilities		—
Foreign Currency Forwards (3)		63		250,220		618		Other current assets		—

Total		66	$	597,970	$	(5,449	)		$	(1,261	)



(1)	The Company entered into this interest rate swap on December 22, 2010. The Company designated and accounts for this swap as a cash flow hedge of the forecasted interest payments on borrowings (see Note 7 — Debt). As a result, changes in fair value of this swap are recognized in OCI, net of tax effect.

(2)	Changes in fair value of these swaps are recognized in earnings. Both swaps mature in January 2012.

(3)	The Company has foreign exchange transaction risk since it typically enters into transactions in the normal course of business that are denominated in foreign currencies that differ from the local functional currencies. The Company enters into short-term foreign currency forward exchange contracts to offset the economic effects of these foreign currency transaction risks. These contracts are accounted for at fair value with realized and unrealized gains and losses recognized in Other income (expense), net since the Company does not designate these contracts as hedges for accounting purposes. All of the outstanding contracts at September 30, 2011 matured by the end of October 2011.

(4)	See Note 11 — Fair Value Disclosures for the determination of the fair value of these instruments.

Derivative Gains and Losses that have been Recognized in the Condensed Consolidated Statements of Operations


	Three Months Ended September 30,					Nine Months Ended September 30,

Amount recorded in:	2011			2010		2011		2010

Interest expense, net (1)	$	1,022		$	1,799	$	3,100	$	6,117
Other (income) expense, net (2)		(1,976	)		1,497		1,794		(1,413	)

Total (income) expense, net	$	(954	)	$	3,296	$	4,894	$	4,704



(1)	Includes interest expense (income) recognized on the Company’s interest rate swap contracts.

(2)	Includes realized and unrealized gains and losses on foreign currency forward contracts.

- Definition

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

+ References + Details

Fair Value Disclosures (Tables)

9 Months Ended

Sep. 30, 2011

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table presents Company assets and liabilities measured at fair value on a recurring basis for the periods indicated (in thousands):


	Fair Value at September 30, 2011		Fair Value at December 31, 2010

Description
Assets:
Deferred compensation assets (1)	$	23,212	$	24,113
Foreign currency exchange forward contracts, net (2)		—		618

	$	23,212	$	24,731

Liabilities:
Interest rate swap contracts (3)	$	10,933	$	6,067
Foreign currency exchange forward contracts, net (2)		212		—

	$	11,145	$	6,067




(1)	The Company has two supplemental deferred compensation arrangements for the benefit of certain highly compensated officers, managers and other key employees. The assets consist of investments in money market and mutual funds, and company-owned life insurance. The money market and mutual funds consist of cash equivalents or securities traded in active markets, and the Company considers the fair value of these assets to be based on a Level 1 input. The value of the Company-owned life insurance is based on indirectly observable prices, which the Company considers to be a Level 2 input.

(2)	The Company enters into foreign currency exchange forward contracts to hedge the effects of adverse fluctuations in foreign currency exchange rates (see Note 10—Derivatives and Hedging). Valuation of the foreign currency forward contracts is based on foreign currency exchange rates in active markets, which the Company considers to be a Level 2 input.

(3)	The Company has three outstanding interest rate swap contracts (see Note 10—Derivatives and Hedging). To determine the fair value of the swaps, the Company relies on mark-to-market valuations prepared by third-party brokers based on observable interest rate yield curves, which the Company considers to be a Level 2 input.

Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Comprehensive Income (Detail) - USD ($) $ in Thousands	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Comprehensive Income (Loss) [Line Items]
Net income:	$ 30,464	$ 20,075	$ 91,878	$ 59,591
Other comprehensive loss, net of tax effect:
Foreign currency translation adjustments	(5,352)	7,415	(3,828)	1,086
Unrealized (loss) gain on interest rate swaps	(3,170)	673	(4,902)	2,257
Amortization of pension unrealized gain	(33)	(56)	(100)	(169)
Other comprehensive loss	(8,555)	8,032	(8,830)	3,174
Comprehensive income	$ 21,909	$ 28,107	$ 83,048	$ 62,765

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 8, 9, 10, 11, 12, 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A5
-Appendix A

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e557-108580

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e540-108580

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6508144

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 87-21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 10, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28, 29, 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 19

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Section 45
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6518256

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
-Appendix A

+ Details

- Definition

The adjustment out of other comprehensive income for prior service costs recognized as a component of net period benefit cost during the period, after tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 4
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 17, 19, 24
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Change in the balance sheet adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity for the period being reported, net of tax. If an entity's functional currency is a foreign currency, translation adjustments result from the process of translating that entity's financial statements into the reporting currency. Includes gain (loss) on foreign currency forward exchange contracts. Includes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain (loss) on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain (loss) and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.

+ References

+ Details

- Definition

This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

+ References

+ Details

- Definition

Change in accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, net of tax effect. The after tax effect change includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 46
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Number 130
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
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+ Details

Reconciliation of Basic and Diluted Earnings Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2011

Sep. 30, 2010

Numerator:

Net income used for calculating basic and diluted earnings per share

$ 30,464

$ 20,075

$ 91,878

$ 59,591

Denominator:

Weighted average number of common shares used in the calculation of basic earnings per share

96,057

95,473

96,462

95,698

Common stock equivalents associated with stock-based compensation plans

^[1],[2]

2,202

3,324

3,005

3,886

Shares used in the calculation of diluted earnings per share

98,259

98,797

99,467

99,584

Basic earnings per share

$ 0.32

$ 0.21

$ 0.95

$ 0.62

Diluted earnings per share

$ 0.31

$ 0.20

$ 0.92

$ 0.60

[1]	For the nine months ended September 30, 2011 and 2010, 0.3 million and 0.5 million of common stock equivalents, respectively, were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.
[2]	For the three months ended September 30, 2011 and 2010, 1.6 million and 1.0 million of common stock equivalents, respectively, were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 36, 37, 38
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 20

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 7
-Paragraph 18

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 21
-Article 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.21)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1252-109256

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=6945512&loc=d3e4984-109258

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.23)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References + Details

- Definition

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

+ References

+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References + Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1448-109256

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Weighted-Average Number of Common Shares Outstanding
-URI http://asc.fasb.org/extlink&oid=6528421

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Reconciliation of Basic and Diluted Earnings Per Share (Parenthetical) (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Earnings Per Share Disclosure [Line Items]
Common stock equivalents that were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive	1.6	1.0	0.3	0.5

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stock-Based Compensation - Additional Information (Detail) $ / shares in Units, shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2011 USD ($) Year $ / shares shares	Sep. 30, 2010 USD ($)	Dec. 31, 2010 $ / shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Common stock available for stock-based compensation awards, par value \| $ / shares	$ 0.0005		$ 0.0005
Total unrecognized stock-based compensation cost	$ 49.6
Total unrecognized stock-based compensation cost, period to be recognized \| Year	2.2
2003 Long-Term Incentive Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Common stock available for stock-based compensation awards \| shares	6.4
Common stock available for stock-based compensation awards, par value \| $ / shares	$ 0.0005
Stock Appreciation Rights
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vest ratably over	4 years
Expiration date	7 years
Total unrecognized stock-based compensation cost, period to be recognized \| Year	4
Restricted Stock Units
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share entitlement description	each RSU that vests entitles the awardee to one common share
Restricted Stock Units \| Service Based Awards
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vest ratably over	4 years
Restricted Stock Units \| Performance Based Awards
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vest ratably over	4 years
Common Stock Equivalents
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share entitlement description	each CSE entitles the holder to one common share
Directors' fees payable, percentage Board of Directors members can opt to receive in cash	50.00%
Employee Stock Option
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Cash received from option exercises	$ 15.2	$ 17.2
Employee Stock Purchase Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Percentage of employee's compensation, eligible employees may not exceed, when purchasing Common Stock through payroll deductions	10.00%
Amount of employee's compensation, eligible employees may not exceed, when purchasing Common Stock through payroll deductions	$ 23,750.0
Price equals to closing price of Common Stock, percentage	95.00%
Shares available for purchase \| shares	1.4
Cash received from share purchases	$ 2.6	$ 2.2

Stock-Based Compensation Expense by Award Type (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 7,800	$ 7,300	$ 24,750	$ 23,298
Stock Appreciation Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,000	900	3,400	3,700
Common Stock Equivalents
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	100	200	400	400
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 6,700	$ 6,200	$ 21,000	$ 19,200

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References + Details

Stock-Based Compensation Expense Recognized in the Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Component of Operating Other Cost and Expense [Line Items]
Stock-based compensation expense	$ 7,800	$ 7,300	$ 24,750	$ 23,298
Cost of services and product development
Component of Operating Other Cost and Expense [Line Items]
Stock-based compensation expense	3,300	3,100	11,300	10,900
Selling, general and administrative
Component of Operating Other Cost and Expense [Line Items]
Stock-based compensation expense	$ 4,500	$ 4,200	$ 13,500	$ 12,400

- Definition

+ References + Details

Summary of Changes in SARs Outstanding (Detail)
shares in Millions

9 Months Ended

Sep. 30, 2011

Year

$ / shares

Weighted Average Remaining Contractual Term

Granted | Year

1.2

Stock Appreciation Rights

SARs

Beginning Balance | shares

2.5

Granted | shares

0.4

Forfeited | shares

Exercised | shares

(0.3)

Ending Balance | shares

2.6

^[1],[2]

Vested and exercisable at September 30, 2011 | shares

1.2

^[2]

Per Share Weighted Average Exercise Price

$ 17.22

38.05

16.96

20.13

^[1],[2]

Vested and exercisable at September 30, 2011

17.71

^[2]

Per Share Weighted Average Grant Date Fair Value

6.62

13.58

6.62

7.58

^[1],[2]

Vested and exercisable at September 30, 2011

$ 6.67

^[2]

Weighted Average Remaining Contractual Term

Beginning Balance | Year

4.55

Granted | Year

6.40

Forfeited | Year

Exercised | Year

Ending Balance | Year

4.25

^[1],[2]

Vested and exercisable at September 30, 2011 | Year

3.29

^[2]

[1]	Approximately 1.4 million of these outstanding SARs were unvested. The Company expects that substantially all of these unvested awards will vest in future periods.
[2]	Total SARs outstanding had an intrinsic value of $39.2 million. SARs vested and exercisable had an intrinsic value of $20.6 million.

Summary of Changes in SARs Outstanding (Parenthetical) (Detail) - USD ($)
shares in Millions, $ in Millions

Sep. 30, 2011

Dec. 31, 2010

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

Intrinsic value, SARs outstanding

$ 39.2

Intrinsic value, SARs vested and exercisable

$ 20.6

Stock Appreciation Rights

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

Outstanding SARs that were unvested

2.6

^[1],[2]

2.5

Stock Appreciation Rights | Unvested

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

Outstanding SARs that were unvested

1.4

[1]	Approximately 1.4 million of these outstanding SARs were unvested. The Company expects that substantially all of these unvested awards will vest in future periods.
[2]	Total SARs outstanding had an intrinsic value of $39.2 million. SARs vested and exercisable had an intrinsic value of $20.6 million.

Weighted-Average Assumptions Used to Determine the Fair Value of the SARs Grants on the Date of the Grant Using the Black-Scholes-Merton Valuation Model (Detail) - Stock Appreciation Rights - Year

9 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]

Expected dividend yield

^[1],[2]

0.00%

Expected stock price volatility

^[1],[3]

38.00%

40.00%

Risk-free interest rate

^[1],[4]

2.20%

2.40%

Expected life in years

^[1],[5]

4.8

[1]	The Company did not make any SARs grants during the three months ended September 30, 2011 or 2010.
[2]	The dividend yield assumption is based on the history and expectation of the Company's dividend payouts. Historically, Gartner has not paid cash dividends on its Common Stock.
[3]	The determination of expected stock price volatility was based on both historical Common Stock prices and implied volatility from publicly traded options in the Common Stock.
[4]	The risk-free interest rate is based on the yield of a U.S. Treasury security with a maturity similar to the expected life of the award.
[5]	The expected life represents a weighted-average estimate of the period of time the SARs are expected to be outstanding (that is, the period between the service inception date and the expected exercise date). The expected life in years is based on the "simplified" calculation permitted by SEC SAB No. 107. Under the simplified method, the expected life is calculated by taking the average of the vesting period plus the original contractual term and dividing by two.

Summary of Changes in RSUs Outstanding (Detail) - Restricted Stock Units
shares in Millions

9 Months Ended

Sep. 30, 2011

$ / shares

Restricted Stock Units

Beginning Balance | shares

3.9

Granted | shares

0.7

^[1]

Vested and released | shares

(1.4)

Forfeited | shares

(0.1)

Ending Balance | shares

3.1

^[2],[3]

Per Share Weighted Average Grant Date Fair Value

Beginning Balance | $ / shares

$ 16.52

Granted | $ / shares

38.03

^[1]

Vested and released | $ / shares

17.22

Forfeited | $ / shares

21.51

Ending Balance | $ / shares

$ 21.50

^[2],[3]

[1]	The 0.7 million RSUs granted in 2011 consisted of 0.3 million target performance-based RSUs awarded to executives and 0.4 million service-based RSUs awarded to non-executive employees and certain board members. The 0.3 million performance-based RSUs represents the target amount of the award. The actual number of performance-based RSUs that will ultimately be granted will be between 0% and 200% of the target amount, depending on the performance metric achieved. For 2011, the performance metric is the dollar level of the Company's subscription-based contract value at December 31, 2011. If the specified minimum level of achievement is not met, the performance-based RSUs will be forfeited in their entirety, and any compensation expense already recorded will be reversed.
[2]	The Company expects that substantially all of the outstanding awards will vest in future periods.
[3]	The weighted-average remaining contractual term of the outstanding RSUs is approximately 1.2 years.

Summary of Changes in RSUs Outstanding (Parenthetical) (Detail) shares in Millions	9 Months Ended
	Sep. 30, 2011 Year shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted, weighted-average remaining contractual term \| Year	1.2
Minimum \| Target Amount
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Actual number of RSUs that will ultimately be granted	0.00%
Maximum \| Target Amount
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Actual number of RSUs that will ultimately be granted	200.00%
Executive Officer \| Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	0.3
Non-Executive \| Target Amount \| Service Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	0.4

Summary of Changes in CSEs Outstanding (Detail) - Common Stock Equivalents	9 Months Ended
	Sep. 30, 2011 $ / shares shares
Common Stock Equivalents (RSUs)
Beginning Balance \| shares	117,208
Granted \| shares	9,795
Converted to common shares \| shares	(12,390)
Forfeited \| shares
Ending Balance \| shares	114,613
Per Share Weighted Average Grant Date Fair Value
Beginning Balance \| $ / shares
Granted \| $ / shares	38.13
Converted to common shares \| $ / shares
Forfeited \| $ / shares
Ending Balance \| $ / shares

Summary of Changes in Stock Options Outstanding (Detail)
$ / shares in Units, shares in Millions, $ in Millions

9 Months Ended

Sep. 30, 2011

USD ($)

Year

$ / shares

Options

Beginning Balance | shares

2.6

Expired | shares

Exercised | shares

(1.3)

^[1]

Ending Balance | shares

1.3

Per Share Weighted Average Exercise Price

Beginning Balance | $ / shares

$ 11.13

Expired | $ / shares

Exercised | $ / shares

11.41

^[1]

Ending Balance | $ / shares

$ 10.84

Weighted Average Remaining Contractual Term

Beginning Balance | Year

2.59

Ending Balance | Year

1.60

Aggregate Intrinsic Value

Beginning Balance | $

$ 58.2

Ending Balance | $

$ 31.4

[1]	Options exercised during the nine months ended September 30, 2011 had an intrinsic value of $35.7 million.

Summary of Changes in Stock Options Outstanding (Parenthetical) (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2011 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value, options exercised	$ 35.7

Information about the Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Segment Reporting Information [Line Items]
Revenues	$ 345,784	$ 296,122	$ 1,040,894	$ 906,150
Gross contribution	203,626	170,560	613,773	522,221
Corporate and other expenses	(156,376)	(137,797)	(469,174)	(426,030)
Operating income	47,250	32,763	144,599	96,191
Interest expense, net	(2,282)	(3,005)	(7,863)	(9,569)
Other expense, net	(541)	(373)	(1,494)	736
Income before income taxes	44,427	29,385	135,242	87,358
Research
Segment Reporting Information [Line Items]
Revenues	255,979	214,680	749,429	634,448
Gross contribution	173,615	140,605	506,420	415,311
Consulting
Segment Reporting Information [Line Items]
Revenues	70,815	65,397	219,407	212,796
Gross contribution	24,458	23,981	78,820	84,222
Events
Segment Reporting Information [Line Items]
Revenues	18,990	16,045	72,058	58,906
Gross contribution	$ 5,553	$ 5,974	$ 28,533	$ 22,688

Goodwill and Intangible Assets - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011 USD ($) Entity	Sep. 30, 2010 USD ($)	Sep. 30, 2011 USD ($) Entity	Sep. 30, 2010 USD ($)
Goodwill and Intangible Assets Disclosure [Line Items]
Number of reporting units \| Entity	3		3
Amortization expense related to intangible assets \| $	$ 739	$ 2,531	$ 5,788	$ 7,994

Changes to the Carrying Amount of Goodwill by Reporting Segments (Detail)
$ in Thousands

9 Months Ended

Sep. 30, 2011

USD ($)

Goodwill [Line Items]

Beginning Balance

$ 510,265

^[1]

Foreign currency translation adjustments

(38)

Ending Balance

510,227

Research

Goodwill [Line Items]

Beginning Balance

368,521

^[1]

Foreign currency translation adjustments

(69)

Ending Balance

368,452

Consulting

Goodwill [Line Items]

Beginning Balance

99,817

^[1]

Foreign currency translation adjustments

Ending Balance

99,834

Events

Goodwill [Line Items]

Beginning Balance

41,927

^[1]

Foreign currency translation adjustments

Ending Balance

$ 41,941

[1]	The Company does not have any accumulated goodwill impairment losses.

- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 43
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph l
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph e
-Clause 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Subparagraph e
-Paragraph 45
-Clause 6
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 72
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Subparagraph e
-Paragraph 45
-Clause 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Subparagraph e
-Paragraph 45
-Clause 7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Carrying Amount of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2011	Dec. 31, 2010
Finite-Lived Intangible Assets [Line Items]
Gross cost	$ 23,602	$ 23,602
Accumulated amortization	(15,804)	(10,018)
Net	7,798	13,584
Content
Finite-Lived Intangible Assets [Line Items]
Gross cost	10,634	10,634
Accumulated amortization	(10,634)	(7,089)
Net		3,545
Trade Name
Finite-Lived Intangible Assets [Line Items]
Gross cost	5,758	5,758
Accumulated amortization	(2,015)	(1,152)
Net	3,743	4,606
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross cost	7,210	7,210
Accumulated amortization	(3,155)	(1,777)
Net	$ 4,055	$ 5,433

Useful Life of Amortizable Intangible Assets Charged Against Earnings (Detail)	9 Months Ended
	Sep. 30, 2011 Year
Content
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	1.5
Trade Name
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	5.0
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	4.0

Estimated Future Amortization Expense by Year from Amortizable Intangibles (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2011 USD ($)
Estimated future amortization expense
2011 (remaining three months)	$ 744
2012	2,955
2013	2,955
2014	1,144
Finite-Lived Intangible Assets, Future Amortization Expense, Total	$ 7,798

Debt - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended
	Dec. 31, 2010	Sep. 30, 2011
Debt Instrument [Line Items]
2010 Credit Agreement, term loan and revolving credit facility maturity	5 years
2010 Credit Agreement, expansion feature by which the term loan and revolving credit facility may be increased	$ 150.0
2010 Credit Agreement, interest rate description	either (i) the greatest of: the administrative agent’s prime rate; the average rate on overnight federal funds plus 1/2 of 1%; and the eurodollar rate (adjusted for statutory reserves) plus 1%, in each case plus a margin equal to between 0.50% and 1.25% depending on the Company’s leverage ratio as of the end of the four consecutive fiscal quarters most recently ended, or (ii) the eurodollar rate (adjusted for statutory reserves) plus a margin equal to between 1.50% and 2.25%
Average rate on overnight federal funds plus 1/2 of	1.00%
Eurodollar rate plus	1.00%
Notional fixed-for-floating interest rate swap contract		$ 200.0
Base fixed rate		2.26%
Interest rate swap fair value		$ 10.3
Outstanding letters of credit and guarantees	$ 5.3	$ 4.8
Euro Dollar Rate
Debt Instrument [Line Items]
Plus minimum margin	1.50%
Plus maximum margin	2.25%
Federal Funds Rate \| Euro Dollar Rate
Debt Instrument [Line Items]
Plus minimum margin	0.50%
Plus maximum margin	1.25%
Term Loan
Debt Instrument [Line Items]
2010 Credit Agreement, maximum borrowing capacity	$ 200.0
Term loan repayment	19 consecutive quarterly installments
Debt instrument, final payment due	Dec. 22, 2015
Revolver
Debt Instrument [Line Items]
2010 Credit Agreement, maximum borrowing capacity	$ 400.0
Debt instrument, final payment due	Dec. 22, 2015
Revolver \| Letter of Credit
Debt Instrument [Line Items]
2010 Credit Agreement, maximum borrowing capacity	$ 40.0

Borrowings (Detail) - USD ($)
$ in Thousands

Sep. 30, 2011

Dec. 31, 2010

Debt Instrument [Line Items]

Amount oustanding

$ 210,000

$ 220,156

Term Loan

Debt Instrument [Line Items]

Amount oustanding

$ 185,000

200,000

Annualized interest rate

^[1]

1.87%

Revolver

Debt Instrument [Line Items]

Amount oustanding

^[2]

$ 25,000

$ 20,156

Annualized interest rate

^[1],[2]

1.80%

[1]

The contractual rate on the term loan consisted of a 0.37% Eurodollar base rate plus a margin of 1.50%, while the contractual rate on the revolver consisted of a weighted-average Eurodollar base rate of 0.30% plus a margin of 1.50%. The Company has an interest rate swap contract which converts the floating Eurodollar base rate to a fixed base rate of 2.26% on $200.0 million of borrowings (see below). Including the impact of the swap, the annualized effective interest rate as of September 30, 2011 on $200.0 million of these borrowings was 3.76%.

[2]

The Company had $371.9 million of available borrowing capacity on the revolver (not including the expansion feature) as of September 30, 2011.

Borrowings (Parenthetical) (Detail) $ in Millions	9 Months Ended
Borrowings (Parenthetical) (Detail) $ in Millions	Sep. 30, 2011 USD ($)
Debt Instrument [Line Items]
Revolver, available borrowing capacity	$ 371.9
Base fixed rate	2.26%
Notional fixed-for-floating interest rate swap contract	$ 200.0
Annualized effective interest rate, including impact of the swap	3.76%
Term Loan
Debt Instrument [Line Items]
Eurodollar base rate	0.37%
Margin	1.50%
Revolver
Debt Instrument [Line Items]
Eurodollar base rate	0.30%
Margin	1.50%

Equity and Stock Programs - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2011 USD ($)
Stockholders Equity Note [Line Items]
Share repurchase program, approved amount	$ 500.0

Share Repurchase Activity (Detail) - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2011

Sep. 30, 2010

Stockholders Equity Note [Line Items]

Number of shares repurchased

^[1]

1,543,069

48,904

3,886,521

3,188,945

Cost of repurchased shares (in thousands)

^[2]

$ 53,354

$ 1,372

$ 141,214

$ 76,475

[1]	The nine months ended September 30, 2011 includes 500,000 shares the Company repurchased directly from ValueAct Capital Master Fund L.P. in a private transaction.
[2]	As of September 30, 2011, the Company had $363.0 million remaining for share repurchases under its $500.0 million share repurchase program.

- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References + Details

Share Repurchase Activity (Parenthetical) (Detail) - USD ($)
$ in Millions

3 Months Ended

9 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2011

Sep. 30, 2010

Stockholders Equity Note [Line Items]

Number of shares repurchased

^[1]

1,543,069

48,904

3,886,521

3,188,945

Share repurchase program, amount remaining for share repurchases

$ 363.0

Share repurchase program, approved amount

$ 500.0

Share Repurchase Program, 2011

Stockholders Equity Note [Line Items]

Number of shares repurchased

500,000

[1]	The nine months ended September 30, 2011 includes 500,000 shares the Company repurchased directly from ValueAct Capital Master Fund L.P. in a private transaction.

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Income Taxes [Line Items]
Provision for income taxes	$ 13,963	$ 9,310	$ 43,364	$ 27,767
Effective tax rate	31.40%	31.70%	32.10%	31.80%
Gross unrecognized tax benefits	$ 19,100		$ 19,100		$ 15,800
Increase due to gross unrecognized tax benefits recorded			3,300
Decrease in gross unrecognized tax benefits due to settlements of outstanding audits and the expiration of the statutes of limitation			2,800
Long term uncertain tax positions	$ 16,300		$ 16,300		$ 15,700

Outstanding Derivatives Contracts (Detail)
$ in Thousands

9 Months Ended

Sep. 30, 2011

USD ($)

Investment

Dec. 31, 2010

USD ($)

Investment

Derivatives, Fair Value [Line Items]

Number of Outstanding Contracts | Investment

Notional Amounts

$ 332,640

$ 597,970

Fair Value Asset (Liability)

^[1]

(11,145)

(5,449)

Unrealized Loss Recorded in OCI

$ (6,162)

$ (1,261)

^[2]

Interest rate swap contracts | Other Liabilities

Derivatives, Fair Value [Line Items]

Number of Outstanding Contracts | Investment

^[3]

Notional Amounts

^[3]

$ 147,750

Fair Value Asset (Liability)

^[1],[3]

$ (3,966)

Interest rate swap contracts | Accrued Liabilities Current

Derivatives, Fair Value [Line Items]

Number of Outstanding Contracts | Investment

^[3]

Notional Amounts

^[3]

$ 61,500

Fair Value Asset (Liability)

^[1],[3]

$ (662)

Foreign currency forward contracts, net | Accrued Liabilities Current

Derivatives, Fair Value [Line Items]

Number of Outstanding Contracts | Investment

^[4]

Notional Amounts

^[4]

$ 71,140

Fair Value Asset (Liability)

^[1],[4]

$ (212)

Foreign currency forward contracts, net | Other Current Assets

Derivatives, Fair Value [Line Items]

Number of Outstanding Contracts | Investment

^[4]

Notional Amounts

^[4]

$ 250,220

Fair Value Asset (Liability)

^[1],[4]

$ 618

Designated as Hedging Instrument | Interest rate swap contracts | Other Liabilities

Derivatives, Fair Value [Line Items]

Number of Outstanding Contracts | Investment

^[2]

Notional Amounts

^[2]

$ 200,000

Fair Value Asset (Liability)

^[1],[2]

(10,271)

(2,101)

Unrealized Loss Recorded in OCI

^[2]

$ (6,162)

$ (1,261)

[1]	See Note 11 - Fair Value Disclosures for the determination of the fair value of these instruments.
[2]	The Company entered into this interest rate swap on December 22, 2010. The Company designated and accounts for this swap as a cash flow hedge of the forecasted interest payments on borrowings (see Note 7 - Debt). As a result, changes in fair value of this swap are recognized in OCI, net of tax effect.
[3]	Changes in fair value of these swaps are recognized in earnings. Both swaps mature in January 2012.
[4]	The Company has foreign exchange transaction risk since it typically enters into transactions in the normal course of business that are denominated in foreign currencies that differ from the local functional currencies. The Company enters into short-term foreign currency forward exchange contracts to offset the economic effects of these foreign currency transaction risks. These contracts are accounted for at fair value with realized and unrealized gains and losses recognized in Other income (expense), net since the Company does not designate these contracts as hedges for accounting purposes. All of the outstanding contracts at September 30, 2011 matured by the end of October 2011.

Derivative Gains and Losses that have been Recognized in the Condensed Consolidated Statements of Operations (Detail) - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 30, 2011

Sep. 30, 2010

Sep. 30, 2011

Sep. 30, 2010

Derivative Instruments, Gain (Loss) [Line Items]

Derivative gains (losses) recognized in income

$ (954)

$ 3,296

$ 4,894

$ 4,704

Interest expense, net

Derivative Instruments, Gain (Loss) [Line Items]

Derivative gains (losses) recognized in income

^[1]

1,022

1,799

3,100

6,117

Other (income) expense, net

Derivative Instruments, Gain (Loss) [Line Items]

Derivative gains (losses) recognized in income

^[2]

$ (1,976)

$ 1,497

$ 1,794

$ (1,413)

[1]	Includes interest expense (income) recognized on the Company's interest rate swap contracts.
[2]	Includes realized and unrealized gains and losses on foreign currency forward contracts.

- Definition

The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

+ References + Details

Fair Value Disclosures - Additional Information (Detail) $ in Millions	Sep. 30, 2011 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Outstanding floating rate borrowings under 2010 Credit Facility	$ 210.0

Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - Fair Value, Measurements, Recurring - USD ($)
$ in Thousands

Sep. 30, 2011

Dec. 31, 2010

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Assets measured at fair value on a recurring basis

$ 23,212

$ 24,731

Liabilities measured at fair value on a recurring basis

11,145

6,067

Deferred compensation assets

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Assets measured at fair value on a recurring basis

^[1]

23,212

24,113

Foreign currency forward contracts, net

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Assets measured at fair value on a recurring basis

^[2]

618

Liabilities measured at fair value on a recurring basis

^[2]

212

Interest rate swap contracts

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Liabilities measured at fair value on a recurring basis

^[3]

$ 10,933

$ 6,067

[1]	The Company has two supplemental deferred compensation arrangements for the benefit of certain highly compensated officers, managers and other key employees. The assets consist of investments in money market and mutual funds, and company-owned life insurance. The money market and mutual funds consist of cash equivalents or securities traded in active markets, and the Company considers the fair value of these assets to be based on a Level 1 input. The value of the Company-owned life insurance is based on indirectly observable prices, which the Company considers to be a Level 2 input.
[2]	The Company enters into foreign currency exchange forward contracts to hedge the effects of adverse fluctuations in foreign currency exchange rates (see Note 10-Derivatives and Hedging). Valuation of the foreign currency forward contracts is based on foreign currency exchange rates in active markets, which the Company considers to be a Level 2 input.
[3]	The Company has three outstanding interest rate swap contracts (see Note 10-Derivatives and Hedging). To determine the fair value of the swaps, the Company relies on mark-to-market valuations prepared by third-party brokers based on observable interest rate yield curves, which the Company considers to be a Level 2 input.

Employee Benefits - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension expense	$ 0.6	$ 0.6	$ 2.0	$ 1.8