10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark One)

þ	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
	For the quarterly period ended September 30, 2012
OR
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.

Commission File Number 1-14443

GARTNER, INC.
(Exact name of Registrant as specified in its charter)
Delaware	04-3099750
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification Number)
P.O. Box 10212	06902-7700
56 Top Gallant Road	(Zip Code)
Stamford, CT
(Address of principal executive offices)

Registrant’s telephone number, including area code: (203) 316-1111

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes þ No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer þ	Accelerated filer o	Non-accelerated filer o	Smaller reporting company o
	(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ

As of October 31, 2012, 93,655,027 shares of the registrant’s common shares were outstanding.

Table of Contents

	Page
PART I. FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS (Unaudited)
Condensed Consolidated Balance Sheets at September 30, 2012 and December 31, 2011	3
Condensed Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2012 and 2011	4
Condensed Consolidated Statements of Comprehensive Income for the Three and Nine Months Ended September 30, 2012 and 2011	5
Condensed Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2012 and 2011	6
Notes to Condensed Consolidated Financial Statements	7
ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	19
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	28
ITEM 4. CONTROLS AND PROCEDURES	29
PART II. OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS	30
ITEM 1A. RISK FACTORS	30
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	30
ITEM 6. EXHIBITS	31

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PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

GARTNER, INC.
Condensed Consolidated Balance Sheets
(Unaudited; in thousands)

	September 30, 2012			December 31, 2011
Assets
Current assets:
Cash and cash equivalents	$	255,391		$	142,739
Fees receivable, net		370,951			421,033
Deferred commissions		65,870			78,492
Prepaid expenses and other current assets		89,766			63,521
Total current assets		781,978			705,785
Property, equipment and leasehold improvements, net		80,344			68,132
Goodwill		519,200			508,550
Intangible assets, net		13,142			7,060
Other assets		84,484			90,345
Total Assets	$	1,479,148		$	1,379,872
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable and accrued liabilities	$	206,290		$	259,490
Deferred revenues		682,603			611,647
Current portion of long-term debt		80,000			50,000
Total current liabilities		968,893			921,137
Long-term debt		120,000			150,000
Other liabilities		128,790			126,951
Total Liabilities		1,217,683			1,198,088
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		78			78
Additional paid-in capital		671,255			646,815
Accumulated other comprehensive income, net		8,673			5,793
Accumulated earnings		849,659			742,579
Treasury stock, at cost, 62,579,388 and 62,891,251 common shares, respectively		(1,268,200	)		(1,213,481	)
Total Stockholders’ Equity		261,465			181,784
Total Liabilities and Stockholders’ Equity	$	1,479,148		$	1,379,872

See the accompanying notes to the condensed consolidated financial statements.

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GARTNER, INC.
Condensed Consolidated Statements of Operations
(Unaudited; in thousands, except per share data)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Revenues:
Research	$	284,048		$	255,979		$	836,970		$	749,429
Consulting		71,731			70,815			222,970			219,407
Events		18,627			18,990			81,119			72,058
Total revenues		374,406			345,784			1,141,059			1,040,894
Costs and expenses:
Cost of services and product development		151,143			142,696			458,853			428,473
Selling, general and administrative		164,888			148,461			492,627			442,891
Depreciation		6,301			6,638			18,378			19,143
Amortization of intangibles		1,362			739			3,029			5,788
Acquisition and integration charges		944			—			2,126			—
Total costs and expenses		324,638			298,534			975,013			896,295
Operating income		49,768			47,250			166,046			144,599
Interest expense, net		(2,209	)		(2,282	)		(6,557	)		(7,863	)
Other expense, net		(748	)		(541	)		(1,802	)		(1,494	)
Income before income taxes		46,811			44,427			157,687			135,242
Provision for income taxes		15,436			13,963			50,607			43,364
Net income	$	31,375		$	30,464		$	107,080		$	91,878
Income per common share:
Basic	$	0.34		$	0.32		$	1.15		$	0.95
Diluted	$	0.33		$	0.31		$	1.12		$	0.92
Weighted average shares outstanding:
Basic		93,522			96,057			93,429			96,462
Diluted		95,611			98,259			95,791			99,467

See the accompanying notes to the condensed consolidated financial statements.

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GARTNER, INC.
Condensed Consolidated Statements of Comprehensive Income
(Unaudited; in thousands)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Net income	$	31,375		$	30,464		$	107,080		$	91,878
Other comprehensive income (loss):
Foreign currency translation adjustments		5,383			(5,352	)		3,720			(3,828	)
Unrealized loss on interest rate swap hedge		(470	)		(5,283	)		(1,139	)		(8,170	)
Amortization of pension unrealized actuarial gain		(51	)		(33	)		(157	)		(100	)
		4,862			(10,668	)		2,424			(12,098	)
Tax effect of comprehensive income items		188			2,113			456			3,268
Other comprehensive income (loss), net of tax effect		5,050			(8,555	)		2,880			(8,830	)
Comprehensive income	$	36,425		$	21,909		$	109,960		$	83,048

See the accompanying notes to the condensed consolidated financial statements.

5

GARTNER, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited; in thousands)

	Nine Months Ended September 30,
	2012			2011
Operating activities:
Net income	$	107,080		$	91,878
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles		21,407			24,931
Stock-based compensation expense		28,021			24,750
Excess tax benefits from stock-based compensation		(20,366	)		(22,458	)
Deferred taxes		(3,268	)		3,812
Amortization of debt issue costs		1,512			1,733
Changes in assets and liabilities, net of acquisition:
Fees receivable, net		54,157			16,023
Deferred commissions		13,202			11,354
Prepaid expenses and other current assets		(18,803	)		(6,241	)
Other assets		2,429			2,051
Deferred revenues		60,681			74,021
Accounts payable, accrued, and other liabilities		(37,301	)		(45,389	)
Cash provided by operating activities		208,751			176,465
Investing activities:
Additions to property, equipment and leasehold improvements		(30,800	)		(23,720	)
Acquisition (net of cash acquired)		(10,336	)		—
Cash used in investing activities		(41,136	)		(23,720	)
Financing activities:
Proceeds from stock issued under stock plans		10,560			17,771
Proceeds from debt issuance		22,500			5,000
Payments on debt		(22,500	)		(15,156	)
Purchases of treasury stock		(89,300	)		(141,214	)
Excess tax benefits from stock-based compensation		20,366			22,458
Cash used by financing activities		(58,374	)		(111,141	)
Net increase in cash and cash equivalents		109,241			41,604
Effects of exchange rates on cash and cash equivalents		3,411			(4,882	)
Cash and cash equivalents, beginning of period		142,739			120,181
Cash and cash equivalents, end of period	$	255,391		$	156,903

See the accompanying notes to the condensed consolidated financial statements.

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GARTNER, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Note 1 — Business and Basis of Presentation

Business. Gartner, Inc. is a global information technology research and advisory company founded in 1979 with its headquarters in Stamford, Connecticut. Gartner delivers its products and services through three business segments: Research, Consulting, and Events. When used in these notes, the terms “Gartner,” “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 in the United States of America (“U.S. GAAP”), as defined in the Financial Accounting Standards Board (FASB) Accounting Standards Codification (“ASC”) Topic 270 for interim financial information and with the applicable instructions of the U.S. 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, 2011. The fiscal year of Gartner represents the twelve-month calendar period from January 1 through December 31. In the opinion of management, all normal recurring accruals and adjustments 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, 2012 may not be indicative of the results of operations for the remainder of 2012.

On January 1, 2012, the Company adopted Accounting Standards Update (“ASU”) No. 2011-05, Comprehensive Income (Topic 220-10): Presentation of Comprehensive Income, and a related amendment. Comprehensive income includes income and expense items from nonowner sources and consists of two separate components: net income as reported and other comprehensive income. ASU No. 2011-05 eliminates the option to report comprehensive income and its components in the statement of stockholders’ equity. Instead, the new rule optionally requires the presentation of net income and comprehensive income in one continuous statement, or in two separate, but consecutive statements. The Company has presented net income, other comprehensive income and its components, and comprehensive income in a new, separate statement called the Condensed Consolidated Statements of Comprehensive Income. While the Company’s presentation of comprehensive income has changed, there are no changes to the components or amounts that are recognized in net income or other comprehensive income under current accounting guidance. As a result, the adoption of this new rule did not impact the Company’s results of operations, cash flows, or financial position.

Principles of consolidation. The accompanying interim condensed consolidated financial statements include the accounts of the Company and its wholly- and 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 is 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. Such estimates are adjusted 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 such estimates and actual results could be material and would be reflected in the Company’s consolidated financial statements in future periods.

Note 2 — Acquisition

On May 31, 2012, the Company acquired Ideas International Limited (“Ideas International”), a publicly-owned Australian corporation (ASX: IDE) headquartered outside of Sydney with 40 employees that provides intelligence on IT infrastructure configurations and pricing data to IT professionals. The Company paid aggregate cash consideration of $18.8 million for 100% of the outstanding shares of Ideas International. The Company’s strategic objectives in acquiring Ideas International are to leverage Gartner’s scale and worldwide distribution capability and introduce Ideas International’s products and services to Gartner’s much larger end user client base and to further penetrate the technology vendor market. Ideas International’s business operations have been integrated into the Company’s Research segment.

Gartner’s financial statements include the operating results of Ideas International beginning with the date of acquisition. These operating results were not material to the Company’s consolidated or segment operating results for the three and nine months ended

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September 30, 2012. The Company recorded $0.9 million and $2.1 million of pre-tax acquisition and integration charges related to the acquisition in the three and nine months ended September 30, 2012, respectively, which are classified in Acquisition and integration charges in the Condensed Consolidated Statements of Operations. Included in these charges are legal, consulting, and severance costs, all of which were direct and incremental charges from the acquisition. Had the Company acquired Ideas International on January 1, 2010, the impact to the Company’s operating results for 2011 and 2010 would not have been material, and as a result pro forma financial information for those periods has not been presented.

The acquisition was accounted for under the acquisition method of accounting as prescribed by FASB ASC Topic 805, Business Combinations. The acquisition method of accounting requires the consideration paid to be allocated to the net assets and liabilities acquired based on their estimated fair values as of the acquisition date, and any excess of the purchase price over the estimated fair value of the net assets acquired, including identifiable intangible assets, must be allocated to goodwill. The Company considers its allocation of the respective purchase price to be preliminary, particularly with respect to the valuation of certain tax related items. In accordance with FASB ASC Topic 805, a final determination of the purchase price allocation and resulting goodwill must be made within one year of the acquisition date. The Company anticipates that none of the recorded goodwill arising from the acquisition will be deductible for tax purposes. All of the recorded goodwill was included in the Company’s Research segment. The Company believes the recorded goodwill is supported by the anticipated revenues related to the acquisition.

The following table summarizes the preliminary allocation of the purchase price to the fair value of the assets acquired and liabilities assumed in the acquisition (dollars in thousands):

Assets:
Cash	$	8,502
Fees receivable		1,310
Prepaid expenses and other current assets		560
Goodwill and amortizable intangible assets (1)		15,990
Total assets	$	26,362
Liabilities:
Accounts payable and accrued liabilities	$	2,203
Deferred revenues (2)		5,321
Total liabilities	$	7,524

(1)	Includes $7.5 million allocated to goodwill and $8.5 million allocated to amortizable intangible assets. See Note 6—Goodwill and Intangible Assets below for additional information.
(2)	The fair value of the cost to fulfill the deferred revenue obligations was determined by estimating the costs to provide the services plus a normal profit margin, and did not include costs associated with selling efforts.

Note 3 — Earnings per Share

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Numerator:
Net income used for calculating basic and diluted earnings per share	$	31,375	$	30,464	$	107,080	$	91,878
Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share		93,522		96,057		93,429		96,462
Common stock equivalents associated with stock-based compensation plans (1)		2,089		2,202		2,362		3,005
Shares used in the calculation of diluted earnings per share		95,611		98,259		95,791		99,467
Basic earnings per share	$	0.34	$	0.32	$	1.15	$	0.95
Diluted earnings per share	$	0.33	$	0.31	$	1.12	$	0.92

(1) Certain common stock equivalents were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive. These amounted to 0.4 million and 1.6 million for the three months ended September 30, 2012 and 2011, respectively, and 0.7 million and 0.3 million for the nine months ended September 30, 2012 and 2011, respectively.

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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, 2012, the Company had 6.3 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 then recognized as expense 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. Currently 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-based 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-based 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-based 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:	2012		2011		2012		2011
Stock appreciation rights (SARs)	$	2.4	$	1.0	$	5.0	$	3.4
Common stock equivalents (CSEs)		0.1		0.1		0.4		0.4
Restricted stock units (RSUs)		6.7		6.7		22.6		21.0
Total expense (1)	$	9.2	$	7.8	$	28.0	$	24.8

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

	Three Months Ended September 30,				Nine Months Ended September 30,
Amount recorded in:	2012		2011		2012		2011
Cost of services and product development	$	3.5	$	3.3	$	12.0	$	11.3
Selling, general and administrative		5.7		4.5		16.0		13.5
Total expense (1)	$	9.2	$	7.8	$	28.0	$	24.8

(1) The three months ended September 30, 2012 and 2011 included charges of $1.5 million and $0.2 million, respectively, related to awards to retirement-eligible employees, since awards granted to retirement-eligible employees vest on an accelerated basis. The nine months ended September 30, 2012 and 2011 included charges of $4.7 million and $3.0 million, respectively, for retirement-eligible employees.

As of September 30, 2012, the Company had $46.6 million of total unrecognized stock-based compensation cost, which is expected to be expensed over the remaining weighted-average service period of approximately 2.3 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) permit the holder to participate in the appreciation of the Common Stock. SARs are settled in shares of Common Stock by the employee once the applicable vesting criteria have been met. SARs vest ratably over a four-

9

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. At the present time, 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 as reported on the New York Stock Exchange 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 during the nine months ended September 30, 2012:

	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, 2011		2.5		$	20.39	$	7.66		4.00 years
Granted		0.4			37.81		12.99		6.36 years
Forfeited		—			—		—		n/a
Exercised		(0.8	)		18.60		6.86		n/a
Outstanding at September 30, 2012 (1), (2)		2.1		$	24.27	$	8.94		4.23 years
Vested and exercisable at September 30, 2012 (2)		0.9		$	18.50	$	7.08		3.17 years

n/a=not applicable

(1)	As of September 30, 2012, 1.2 million of SARs outstanding were unvested. The Company expects that substantially all of these unvested awards will vest in future periods.
(2)	As of September 30, 2012, total SARs outstanding had an intrinsic value of $45.4 million. SARs vested and exercisable had an intrinsic value of $25.5 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)
	2012			2011
Expected dividend yield (2)		0	%		0	%
Expected stock price volatility (3)		40	%		38	%
Risk-free interest rate (4)		0.8	%		2.2	%
Expected life in years (5)		4.6			4.8

(1)	The Company did not make any SARs grants during the three months ended September 30, 2012 and 2011.
(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 the Company’s 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). Beginning January 1, 2012, the expected life has been calculated based on the Company’s historical exercise data. Previously, the Company determined the expected life based on a simplified calculation permitted by SEC SAB No. 107 and SAB No. 110 since the necessary historical exercise data was not available. The change in methodology had an insignificant impact on the calculation of the expected life.

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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 of the rights of a Gartner stockholder, including voting rights and the right to receive dividends and distributions, 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, 2012:

	Restricted Stock Units (RSUs) (in millions)			Per Share Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011		3.1		$	21.53
Granted (1)		0.7			37.97
Vested and released		(1.3	)		19.51
Forfeited		—			—
Outstanding at September 30, 2012 (2), (3)		2.5		$	27.93

(1)	The 0.7 million RSUs granted in 2012 consisted of 0.3 million 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 awarded to executives represents the target amount of the award for the year, which is tied to an increase in the Company’s subscription-based Research contract value (“CV”) for 2012. The final number of performance-based RSUs that will be granted to executives in 2012 could range from 0% to 200% of the target amount, depending on the actual increase in CV for the year as measured on December 31, 2012. If the specified minimum level of achievement is not met, the performance-based RSUs will be forfeited in their entirety, and any compensation expense previously 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, 2012:

	Common Stock Equivalents (CSEs)			Per Share Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011		97,268		$	15.93
Granted		8,631			44.63
Converted to common shares		(6,173	)		44.60
Outstanding at September 30, 2012		99,726		$	16.64

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 $7.7 million and $15.2 million in cash from option exercises in the nine months ended September 30, 2012 and 2011, respectively.

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The following table summarizes the changes in stock options outstanding during the nine months ended September 30, 2012:

	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, 2011		1.2		$	10.93		1.47 years	$	27.7
Exercised (1)		(0.8	)		10.80		n/a		n/a
Vested and outstanding at September 30, 2012		0.4		$	11.13		1.30 years	$	15.6
n/a=not applicable

(1) Options exercised during the nine months ended September 30, 2012 had an intrinsic value of $22.1 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, 2012, the Company had 1.3 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 $2.9 million and $2.6 million in cash from share purchases under the ESP Plan in the nine months ended September 30, 2012 and 2011, respectively.

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, 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, amortization of intangibles, and acquisition and integration 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 intersegment 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, 2012:	Research		Consulting		Events		Consolidated
Revenues	$	284,048	$	71,731	$	18,627	$	374,406
Gross contribution		193,540		24,380		4,511		222,431
Corporate and other expenses								(172,663	)
Operating income							$	49,768
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

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Nine Months Ended September 30, 2012:	Research		Consulting		Events		Consolidated
Revenues	$	836,970	$	222,970	$	81,119	$	1,141,059
Gross contribution		571,547		79,886		32,867		684,300
Corporate and other expenses								(518,254	)
Operating income							$	166,046
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

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.

The following table presents changes to the carrying amount of goodwill by reporting unit during the nine months ended September 30, 2012 (in thousands):

	Research		Consulting		Events		Total
Balance, December 31, 2011	$	366,980	$	99,677	$	41,893	$	508,550
Addition due to acquisition (1)		7,455		—		—		7,455
Foreign currency translation adjustments		2,488		683		24		3,195
Balance, September 30, 2012 (2)	$	376,923	$	100,360	$	41,917	$	519,200

(1)	The Company acquired Ideas International in the second quarter of 2012 and recorded $7.5 million of goodwill. All of the recorded goodwill resulting from the acquisition has been included in the Research segment. See Note 2—Acquisition above for additional information.
(2)	The Company does not have any accumulated goodwill impairment losses.

Amortizable Intangible Assets

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

September 30, 2012	Trade Name			Customer Relationships			Content			Software			Total
Gross cost, December 31, 2011	$	5,758		$	7,210		$	—		$	—		$	12,968
Additions due to acquisition (1)		240			3,170			3,170			1,955			8,535
Foreign currency translation adjustments		18			207			234			134			593
Gross cost		6,016			10,587			3,404			2,089			22,096
Accumulated amortization (2)		(3,210	)		(5,238	)		(284	)		(222	)		(8,954	)
Balance, September 30, 2012	$	2,806		$	5,349		$	3,120		$	1,867		$	13,142
December 31, 2011	Trade Name			Customer Relationships			Total
Gross cost, December 31, 2010	$	5,758		$	7,210		$	12,968
Foreign currency translation adjustments		—			—			—
Gross cost		5,758			7,210			12,968
Accumulated amortization (2)		(2,303	)		(3,605	)		(5,908	)
Balance, December 31, 2011	$	3,455		$	3,605		$	7,060

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(1)	The Company acquired Ideas International in the second quarter of 2012 and recorded a total of $8.5 million of amortizable intangible assets. See Note 2—Acquisition above for additional information.
(2)	Intangible assets are being amortized against earnings over the following periods: Trade name—2 to 5 years; Customer relationships—4 years; Content—4 years; Software—3 years.

Aggregate amortization expense related to intangible assets was $1.4 million and $0.7 million for the three months ended September 30, 2012 and 2011, respectively, and $3.0 million and $5.8 million for the nine months ended September 30, 2012 and 2011, respectively.

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

2012 (remaining three months)	$	1,370
2013		5,475
2014		3,600
2015		1,995
2016		702
	$	13,142

Note 7 — Debt

Credit Agreement

The Company has a credit arrangement that provides for a five-year, $200.0 million term loan and a $400.0 million revolving credit facility that it entered into in December 2010 (the “2010 Credit Agreement”). 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, 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 as of September 30, 2012 and December 31, 2011.

The following table provides information regarding the Company’s borrowings under the 2010 Credit Agreement:

Description:	Amount Outstanding September 30, 2012 (In thousands)		Contractual Annualized Interest Rate September 30, 2012		Amount Outstanding December 31, 2011 (In thousands)
Term loan (1)	$	157,500	1.86	%	$	180,000
Revolver (1), (2)		42,500	1.86	%		20,000
Total	$	200,000			$	200,000

(1) The term and revolver contractual rates consisted of a 0.36%, three-month floating Eurodollar base rate plus a margin of 1.50%. However, the Company has an interest rate swap contract which converts the floating Eurodollar base rates to a fixed base rate on $200.0 million of borrowings (see below). As a result, the effective annual interest rate on the total debt outstanding under the 2010 Credit Facility, including the effect of the swap, was 3.76% as of September 30, 2012 and December 31, 2011.

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(2) The Company had $354.2 million of additional borrowing capacity on the revolver (not including the expansion feature) as of September 30, 2012.

Interest Rate Swap Hedge

The Company has a $200.0 million notional fixed-for-floating interest rate swap contract which it designates as a 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 floating Eurodollar base rate on $200.0 million of notional borrowings. The Company entered into this swap contract in December 2010 and it matures in September 2015.

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 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. There was no ineffective portion of the hedge at September 30, 2012 or December 31, 2011. The interest rate swap had a negative fair value to the Company of $11.0 million and $9.9 million at September 30, 2012 and December 31, 2011, respectively, which is deferred and classified in OCI, net of tax effect.

Letters of Credit

The Company had $10.1 million of letters of credit and related guarantees outstanding at September 30, 2012. The Company enters into these instruments in the ordinary course of business to facilitate transactions with customers and others.

Note 8 — Equity

Share Repurchase Program

The Company has a $500.0 million share repurchase program, of which $231.0 million remained available for share repurchases as of September 30, 2012. Repurchases 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 market 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 may be funded from operating cash flow or borrowings.

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Number of shares repurchased (1)		95,833		1,543,069		2,260,093		3,886,521
Cost of repurchased shares (in thousands)	$	4,626	$	53,354	$	89,300	$	141,214

(1) The average purchase price for the shares was $48.27 and $39.51 for the three and nine months ended September 30, 2012 respectively, and $34.58 and $36.33 for the three and nine months ended September 30, 2011, respectively.

Note 9 — Income Taxes

The provision for income taxes was $15.4 million for the three months ended September 30, 2012 compared to $14.0 million in the prior year quarter. The effective tax rate was 33.0% for the three months ended September 30, 2012 and 31.4% for the same period in 2011. The increase in the effective tax rate was primarily due to a change in the estimated annual mix of pre-tax income by jurisdiction. The provision for income taxes was $50.6 million for the nine months ended September 30, 2012 compared to $43.4 million for the same period in 2011. The effective tax rate was 32.1% for both the nine months ended September 30, 2012 and 2011.

As of September 30, 2012 and December 31, 2011, the Company had gross unrecognized tax benefits of $20.0 million and $18.3 million, respectively. It is reasonably possible that the gross unrecognized tax benefits will decrease by $4.8 million within the next 12 months, primarily due to settlements of outstanding audits and the expiration of the relevant statutes of limitation. As of September 30, 2012 and December 31, 2011, the Company had Other liabilities of $15.2 million and $15.4 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. The Company disagrees with certain of the proposed adjustments and is disputing this matter through applicable IRS and judicial procedures, as appropriate. Separately, in the second quarter of 2011 the IRS commenced an audit of the Company’s 2008 and 2009 tax years. The Company continues to comply with all information requests and no material adjustments of

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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.

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, including 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, 2012
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	$	(11,000	)	Other liabilities	$	(6,617	)
Foreign currency forwards (2)		30		40,530		(240	)	Accrued liabilities		—
Total		31	$	240,530	$	(11,240	)		$	(6,617	)
December 31, 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	$	(9,891	)	Other liabilities	$	(5,934	)
Interest rate swaps (3)		2		30,750		(98	)	Other liabilities		—
Foreign currency forwards (2)		60		99,585		272		Other current assets		—
Total		63	$	330,335	$	(9,717	)		$	(5,934	)

(1)	The Company has designated 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 deferred and are recorded in OCI, net of tax effect.
(2)	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 currency. 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 expense, net since the Company does not designate these contracts as hedges for accounting purposes. Substantially all of the outstanding contracts at September 30, 2012 matured by the end of October 2012.
(3)	These swaps matured in January 2012. Changes in the fair value of these swaps were recognized in earnings.
(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 contained credit-risk guarantees.

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:	2012		2011			2012			2011
Interest expense, net (1)	$	907	$	1,022		$	2,657		$	3,100
Other expense (income), net (2)		36		(1,976	)		(563	)		1,794
Total expense (income), net	$	943	$	(954	)	$	2,094		$	4,894

(1)	Consists of interest expense from interest rate swap contracts.
(2)	Consists of realized and unrealized gains and losses on foreign currency forward contracts.

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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 approximate their fair value due to their short-term nature. The Company’s financial instruments also include borrowings outstanding under its 2010 Credit Agreement, and at September 30, 2012, the Company had $200.0 million of floating rate debt outstanding under this arrangement, which is carried at amortized cost. The Company believes the carrying amount of the outstanding borrowings reasonably approximates fair value since the rate of interest on the borrowings reflect current market rates of interest for similar instruments with comparable maturities.

FASB ASC Topic 820 provides a framework for the measurement of fair value and a valuation hierarchy based upon the transparency of inputs used in the valuation of assets and liabilities. 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 measurements consist of quoted prices in active markets for identical assets or liabilities. Level 2 measurements include significant other observable inputs such as quoted prices for similar assets or liabilities in active markets; identical assets or liabilities in inactive markets; observable inputs such as interest rates and yield curves; and other market-corroborated inputs. Level 3 measurements include significant unobservable inputs, such as internally-created valuation models.

On January 1, 2012, the Company adopted ASU No. 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs, which updates FASB ASC Topic 820 with new requirements. These include: (1) a prohibition on grouping financial instruments for purposes of determining fair value, except when an entity manages market and credit risks on the basis of the entity’s net exposure to the group; (2) an extension of the prohibition against the use of a blockage factor to all fair value measurements (that prohibition currently applies only to financial instruments with quoted prices in active markets); and (3) a requirement that for recurring Level 3 fair value measurements, entities disclose additional quantitative information about unobservable inputs, a description of the valuation process used and qualitative details about the sensitivity of the measurements and their potential impact on operating results.

The Company has a limited number of assets and liabilities recorded in its Consolidated Balance Sheets that are remeasured to fair value on a recurring basis, and the Company does not currently utilize Level 3 valuation inputs to remeasure any of its assets or liabilities. In addition, the Company typically does not transfer assets or liabilities between different levels of the fair value hierarchy. As a result, the adoption of ASU No. 2011-04 did not result in any changes to the Company’s processes for determining fair values or require additional fair value disclosures.

The Company’s assets and liabilities remeasured to fair value are presented in the following table (in thousands):

Description:	Fair Value September 30, 2012		Fair Value December 31, 2011
Assets:
Deferred compensation plan assets (1)	$	27,000	$	25,050
Pension reinsurance asset (2)		14,350		12,980
Foreign currency forward contracts (3)		—		272
	$	41,350	$	38,302
Liabilities:
Deferred compensation plan liabilities (1)	$	30,290	$	28,100
Foreign currency forward contracts (3)		240		—
Interest rate swap contract (4)		11,000		9,989
	$	41,530	$	38,089

(1)	The Company has a deferred compensation plan for the benefit of certain highly compensated employees. The assets consist of investments in money market and mutual funds, and company-owned life insurance contracts, all of which are valued based on Level 1 or Level 2 valuation inputs. The related deferred compensation plan liabilities are recorded at fair value, or the estimated amount needed to settle the liability, which the Company also considers to be based on a Level 2 input.
(2)	The Company maintains a pension reinsurance asset to fund payments for one of its defined benefit pension plans. The reinsurance asset is carried at its cash surrender value, which the Company believes approximates its fair value. The Company considers the reinsurance contract to be valued based on a Level 2 input.
(3)	The Company enters into foreign currency forward exchange contracts to hedge the effects of adverse fluctuations in foreign currency exchange rates. Valuation of the foreign currency forward contracts is based on observable foreign currency exchange rates in active markets, which the Company considers a Level 2 input.

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(4) The Company has an interest rate swap contract which hedges the interest rate on its borrowings (see Note 7 — Debt). To determine the fair value of this over-the-counter financial instrument, the Company relies on a mark-to-market valuation prepared by a third-party broker. The valuation is based on observable interest rates from recently executed market transactions or broker quotes corroborated by other observable market data. Accordingly, the fair value of the swap is determined under a Level 2 input. The Company independently corroborates the reasonableness of the swap valuation prepared by the third-party broker through the use of an electronic quotation service.

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, 2012 and 2011, and $1.8 million and $2.0 million for the nine months ended September 30, 2012 and 2011, respectively.

Note 13 — Commitments and Contingencies

Contingencies

The Company is 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, 2012, the Company did not have any indemnification agreements that could require material payments.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The purpose of the following Management’s Discussion and Analysis (“MD&A”) is to help facilitate the understanding of significant factors influencing the quarterly operating results, financial condition and cash flows of Gartner, Inc. Additionally, the MD&A also conveys our expectations of the potential impact of known trends, events or uncertainties that may impact future results. You should read this discussion in conjunction with our condensed consolidated financial statements and related notes included in this report and in our Annual Report on Form 10-K for the year ended December 31, 2011. Historical results and percentage relationships are not necessarily indicative of operating results for future periods. References to “Gartner,” “the Company,” “we,” “our,” and “us” in this MD&A are to Gartner, Inc. and its subsidiaries.

On May 31, 2012, we acquired Ideas International Limited (“Ideas International”), a publicly-owned Australian corporation (see Note 2—Acquisition in the Notes to the Condensed Consolidated Financial Statements for additional information). Ideas International’s business operations have been integrated into the Company’s Research segment, and its operating results and business measurements are included in the Company’s consolidated and segment results and disclosures beginning on the date of acquisition. The impact of the acquisition was not material for the three and nine months ended September 30, 2012.

Forward-Looking Statements

In addition to historical information, this Quarterly Report contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are any statements other than statements of historical fact, including statements regarding our expectations, beliefs, hopes, intentions or strategies regarding the future. In some cases, forward-looking statements can be identified by the use of words such as “may,” “will,” “expect,” “should,” “could,” “believe,” “plan,” “anticipate,” “estimate,” “predict,” “potential,” “continue,” or other words of similar meaning.

Forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those discussed in, or implied by, the forward-looking statements. Factors that might cause such a difference include, but are not limited to, those discussed in “Factors That May Affect Future Performance” and elsewhere in this Quarterly Report and in our Annual Report on Form 10-K for the year ended December 31, 2011. Readers should not place undue reliance on these forward-looking statements, which reflect management’s opinion only as of the date on which they were made. Except as required by law, we disclaim any obligation to review or update these forward-looking statements to reflect events or circumstances as they occur. Readers should review carefully any risk factors described in other reports we filed with the SEC.

BUSINESS OVERVIEW

Gartner, Inc. (NYSE: IT) is the world’s leading information technology research and advisory company. We deliver the technology-related insight necessary for our clients to make the right decisions, every day. From CIOs and senior IT leaders in corporations and government agencies, to business leaders in high-tech and telecom enterprises and professional services firms, to supply chain professionals and technology investors, we are the valuable partner to clients in over 12,600 distinct organizations. We work with every client to research, analyze and interpret the business of IT within the context of their individual role. Founded in 1979, Gartner is headquartered in Stamford, Connecticut, U.S.A., and has approximately 5,400 associates, including almost 1,400 research analysts and consultants, and clients in 85 countries.

The foundation for all Gartner products and services is our independent research on IT and supply chain issues. The findings from this research are delivered through our three business segments — Research, Consulting and Events:

• Research provides objective insight on critical and timely technology and supply chain initiatives for CIOs, other IT professionals, supply chain leaders, technology companies and the investment community through reports, briefings, proprietary tools, access to our analysts, peer networking services, and membership programs that enable our clients to make better decisions about their IT and supply chain investments.

• Consulting provides customized solutions to unique client needs through on-site, day-to-day support, as well as proprietary tools for measuring and improving IT performance with a focus on cost, performance, efficiency, and quality.

• Events provide IT, supply chain, and business professionals the opportunity to attend various symposia, conferences and exhibitions to learn, contribute and network with their peers. From our flagship event Symposium/ITxpo, to Summits focused on specific technologies and industries, to experimental workshop-style Seminars, our events distill the latest Gartner research into applicable insight and advice.

For more information regarding Gartner and our products and services, visit www.gartner.com.

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BUSINESS MEASUREMENTS

We believe the following business measurements are important performance indicators for our business segments:

BUSINESS SEGMENT	BUSINESS MEASUREMENTS
Research	Contract value represents the value attributable to all of our subscription-related research products that recognize revenue on a ratable basis. Contract value is calculated as the annualized value of all subscription research contracts in effect at a specific point in time, without regard to the duration of the contract.
	Client retention rate represents a measure of client satisfaction and renewed business relationships at a specific point in time. Client retention is calculated on a percentage basis by dividing our current clients, who were also clients a year ago, by all clients from a year ago.
	Wallet retention rate represents a measure of the amount of contract value we have retained with clients over a twelve-month period. Wallet retention is calculated on a percentage basis by dividing the contract value of clients, who were clients one year earlier, by the total contract value from a year earlier, excluding the impact of foreign currency exchange. When wallet retention exceeds client retention, it is an indication of retention of higher-spending clients, or increased spending by retained clients, or both.
Consulting	Consulting backlog represents future revenue to be derived from in-process consulting, measurement and strategic advisory services engagements.
	Utilization rates represent a measure of productivity of our consultants. Utilization rates are calculated for billable headcount on a percentage basis by dividing total hours billed by total hours available to bill.
	Billing Rate represents earned billable revenue divided by total billable hours.
	Average annualized revenue per billable headcount represents a measure of the revenue generating ability of an average billable consultant and is calculated periodically by multiplying the average billing rate per hour times the utilization percentage times the billable hours available for one year.
Events	Number of events represents the total number of hosted events completed during the period.
	Number of attendees represents the total number of people who attend events.

EXECUTIVE SUMMARY OF OPERATIONS AND FINANCIAL POSITION

We have executed a consistent growth strategy since 2005 to drive double-digit revenue and earnings growth. The fundamentals of our strategy include a focus on creating extraordinary research insight, delivering innovative and highly differentiated product offerings, building a strong sales capability, providing world class client service with a focus on client engagement and retention, and continuously improving our operational effectiveness.

We had total revenues of $374.4 million in the third quarter of 2012, an increase of 8% compared to the third quarter of 2011 and 12% excluding the unfavorable foreign exchange impact. Revenues increased by 11% in our Research segment and 1% in Consulting, while Events revenues declined by 2%, primarily due to a shift in our events calendar. For a more complete discussion of our results by segment, see Segment Results below. For the nine months ended September 30, 2012, total revenues increased 10%, but excluding the unfavorable impact of foreign exchange, revenues increased 12%.

We had net income of $31.4 million in the third quarter of 2012, an increase of 3% compared to third quarter 2011. Diluted earnings per share increased $0.02 per share quarter-over-quarter, to $0.33 per share for the third quarter 2012. For the nine months ended September 30, 2012, net income increased 17% compared to the same period in 2011. Diluted earnings per share was $1.12 per share for the nine months ended September 30, 2012, an increase of 22%.

We had almost $209.0 million of operating cash flow in the nine months ended September 30, 2012, an increase of 18% compared to the same period in 2011 and the highest nine months’ operating cash flow in the Company’s history. At September 30, 2012, we had $255.4 million of cash and cash equivalents and over $354.0 million of available borrowing capacity under our revolving credit facility. We believe our liquidity is adequate to fund our current plans. During 2012 we have used $89.3 million of cash to repurchase

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our common shares as part of our continued focus on enhancing shareholder value, and we used $10.3 million in cash on a net basis to purchase Ideas International.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

The preparation of financial statements requires the application of appropriate accounting policies and the use of estimates. Our significant accounting policies are described in Note 1 in the Notes to Consolidated Financial Statements of Gartner, Inc. contained in our Annual Report on Form 10-K for the year ended December 31, 2011. Management considers the policies discussed below to be critical to an understanding of our financial statements because their application requires complex and subjective management judgments and estimates. Specific risks for these critical accounting policies are also described below.

The preparation of our financial statements requires us to make estimates and assumptions about future events. We develop our estimates using both current and historical experience, as well as other factors, including the general economic environment and actions we may take in the future. We adjust such estimates when facts and circumstances dictate. However, our estimates may involve significant uncertainties and judgments and cannot be determined with precision. In addition, these estimates are based on our best judgment at a point in time and as such these estimates may ultimately differ materially from actual results. Also, on-going changes in our estimates could be material and would be reflected in the Company’s consolidated financial statements in future periods.

Our critical accounting policies are as follows:

Revenue recognition — Revenue is recognized in accordance with the requirements of U.S. GAAP as well as SEC Staff Accounting Bulletins No. 101, Revenue Recognition in Financial Statements (“SAB 101”), and SEC Staff Accounting Bulletin No. 104, Revenue Recognition (“SAB 104”). Revenue is only recognized once all required criteria for revenue recognition have been met. Revenue by significant source is accounted for as follows:

• Research revenues are derived from subscription contracts for research products and are deferred and recognized ratably over the applicable contract term. Fees from research reprints are recognized when the reprint is delivered.

• Consulting revenues are principally generated from fixed fee and time and material engagements. Revenues from fixed fee contracts are recognized on a proportional performance basis. Revenues from time and materials engagements are recognized as work is delivered and/or services are provided. Revenues related to contract optimization contracts are contingent in nature and are only recognized upon satisfaction of all conditions related to their payment.

• Events revenues are deferred and recognized upon the completion of the related symposium, conference or exhibition.

The majority of research contracts are billable upon signing, absent special terms granted on a limited basis from time to time. All research contracts are non-cancelable and non-refundable, except for government contracts that may have cancellation or fiscal funding clauses. It is our policy to record the entire amount of the contract that is billable as a fee receivable at the time the contract is signed with a corresponding amount as deferred revenue, since the contract represents a legally enforceable claim.

Uncollectible fees receivable — We maintain an allowance for losses which is composed of a bad debt allowance and a sales reserve. Provisions are charged against earnings, either as a reduction in revenues or an increase to expense. The measurement of likely and probable losses and the allowance for losses is based on historical loss experience, aging of outstanding receivables, an assessment of current economic conditions and the financial health of specific clients. This evaluation is inherently judgmental and requires estimates. These valuation reserves are periodically re-evaluated and adjusted as more information about the ultimate collectability of fees receivable becomes available. Circumstances that could cause our valuation reserves to increase include changes in our clients’ liquidity and credit quality, other factors negatively impacting our clients’ ability to pay their obligations as they come due, and the effectiveness of our collection efforts.

The following table provides our total fees receivable, along with the related allowance for losses, as of the date indicated (in thousands):

	September 30, 2012			December 31, 2011
Total fees receivable	$	377,751		$	428,293
Allowance for losses		(6,800	)		(7,260	)
Fees receivable, net	$	370,951		$	421,033

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Goodwill and other intangible assets — 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. Goodwill is not amortized against earnings, but is periodically evaluated for impairment in accordance with FASB ASC Topic 350, which requires goodwill to be assessed for impairment at least annually and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. In addition, an impairment evaluation of our amortizable intangible assets may also be performed on a periodic basis should events or circumstances indicate potential impairment. If we determine that the fair value of a reporting unit or an intangible asset is less than its related carrying amount, we must recognize an impairment charge against earnings. Among the factors we consider important that could trigger an impairment review are the following:

• Significant under-performance relative to historical or projected future operating results;

• Significant changes in the manner of our use of acquired assets or the strategy for our overall business;

• Significant negative industry or general economic trends;

• Significant decline in our stock price for a sustained period; and

• Our market capitalization relative to net book value.

The determination of the estimated fair value of our reporting units, whether based on a quantitative or qualitative assessment, contains judgments and assumptions regarding future trends and events, with both the precision and reliability of the resulting estimates subject to uncertainty. As a result, if the Company deems it necessary in the future to modify its judgments and assumptions, or if actual results are materially different from our expectations, then the estimated reporting unit values could change, potentially resulting in goodwill impairment charges in future periods. We completed our required annual goodwill impairment assessment as of September 30, 2012 utilizing a qualitative approach and concluded that the fair value of our reporting units continued to substantially exceed their respective carrying amounts.

Accounting for income taxes — As we prepare our consolidated financial statements, we estimate our income taxes in each of the jurisdictions where we operate. This process involves estimating our current tax expense together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included within our consolidated balance sheets. We record a valuation allowance to reduce our deferred tax assets when future realization is in question. We consider the availability of loss carryforwards, existing deferred tax liabilities, future taxable income and ongoing prudent and feasible tax planning strategies in assessing the need for the valuation allowance. In the event we determine that we are able to realize our deferred tax assets in the future in excess of our net recorded amount, an adjustment is made to reduce the valuation allowance and increase income in the period such determination is made. Likewise, if we determine that we will not be able to realize all or part of our net deferred tax asset in the future, an adjustment to the valuation allowance is charged against income in the period such determination is made.

Accounting for stock-based compensation — 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”). The Company recognizes stock-based compensation expense, which is based on the fair value of the award on the date of grant, over the related service period, net of estimated forfeitures (see Note 4 — Stock-Based Compensation in the Notes to the Condensed Consolidated Financial Statements).

Determining the appropriate fair value model and calculating the fair value of stock-based compensation awards requires the input of certain complex and subjective assumptions, including the expected life of the stock-based compensation awards and the Company’s Common Stock price volatility. In addition, determining the appropriate amount of associated periodic expense requires management to estimate the rate of employee forfeitures and the likelihood of the achievement of certain performance targets. The assumptions used in calculating the fair value of stock-based 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 periodic stock-based compensation expense may need to be adjusted which could be materially different from what has been recorded in the current period.

Restructuring and other accruals — We may record accruals for severance costs, costs associated with excess facilities that we have leased, contract terminations, asset impairments, the integration of acquired businesses, and other costs as a result of on-going actions we undertake to streamline our organization, reposition certain businesses and reduce ongoing costs, or acquire other companies. Estimates of costs to be incurred to complete these actions, such as future lease payments, sublease income, the fair value of assets, and severance and related benefits, are based on assumptions at the

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time the actions are initiated. These accruals may need to be adjusted to the extent actual costs differ from such estimates. In addition, these actions may be revised due to changes in business conditions that we did not foresee at the time such plans were approved. We also record accruals during the year for our various employee cash incentive programs. Amounts accrued at the end of each reporting period are based on our estimates and may require adjustment as the ultimate amount paid for these incentives are sometimes not known with certainty until the end of our fiscal year.

RESULTS OF OPERATIONS

Overall Results

The following tables summarize the changes in selected income and expense lines in our interim Condensed Consolidated Statements of Operations for the periods indicated (dollars in thousands):

	Three Months Ended September 30, 2012			Three Months Ended September 30, 2011			Income Increase (Decrease) $			Income Increase (Decrease) %
Total revenues	$	374,406		$	345,784		$	28,622			8	%
Costs and expenses:
Cost of services and product development		151,143			142,696			(8,447	)		(6	)
Selling, general and administrative		164,888			148,461			(16,427	)		(11	)
Depreciation		6,301			6,638			337			5
Amortization of intangibles		1,362			739			(623	)		(84	)
Acquisition and integration charges		944			—			(944	)		(100	)
Operating income		49,768			47,250			2,518			5
Interest expense, net		(2,209	)		(2,282	)		73			3
Other expense, net		(748	)		(541	)		(207	)		(38	)
Provision for income taxes		(15,436	)		(13,963	)		(1,473	)		(11	)
Net income	$	31,375		$	30,464		$	911			3	%
	Nine Months Ended September 30, 2012			Nine Months Ended September 30, 2011			Income Increase (Decrease) $			Income Increase (Decrease) %
Total revenues	$	1,141,059		$	1,040,894		$	100,165			10	%
Costs and expenses:
Cost of services and product development		458,853			428,473			(30,380	)		(7	)
Selling, general and administrative		492,627			442,891			(49,736	)		(11	)
Depreciation		18,378			19,143			765			4
Amortization of intangibles		3,029			5,788			2,759			48
Acquisition and integration charges		2,126			—			(2,126	)		(100	)
Operating income		166,046			144,599			21,447			15
Interest expense, net		(6,557	)		(7,863	)		1,306			17
Other expense, net		(1,802	)		(1,494	)		(308	)		(21	)
Provision for income taxes		(50,607	)		(43,364	)		(7,243	)		(17	)
Net income	$	107,080		$	91,878		$	15,202			17	%

Total revenues for the three months ended September 30, 2012 increased $28.6 million, or 8%, compared to the same quarter in 2011, driven by our Research segment, which had a double-digit revenue increase. Excluding the unfavorable impact of foreign currency translation, total quarterly revenues increased 12%. For the nine month periods, revenues increased over $100.0 million in 2012, or 10%, with increases in all three of our business units, including double-digit increases in Research and Events. Excluding the unfavorable impact of foreign currency translation, revenues for the nine months ended September 30, 2012 increased 12% over the same period in 2011. Please refer to the section of this MD&A below entitled “Segment Results” for a discussion of revenues and results by segment.

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Cost of services and product development increased $8.4 million, or 6%, in the third quarter of 2012 compared to the third quarter of 2011. The increase was primarily due to $8.0 million in higher payroll and related benefits costs due to increased headcount and merit salary increases, and we also had higher travel expenses related to the increased headcount. These increases were partially offset by the favorable impact of foreign currency translation. Cost of services and product development as a percentage of revenues decreased by 1 point, to 40% in the third quarter of 2012 from 41% in the third quarter of 2011, driven by the higher revenues and operating leverage inherent in our Research segment.

For the nine month periods, Cost of services and product development increased $30.4 million in 2012, or 7%, compared to 2011. Consistent with the quarter, the increase was primarily due to higher payroll and related benefits costs due to increased headcount and merit salary increases, which increased by about $28.0 million. We also had higher conference and travel costs, due to higher attendance at our events and additional associates. These increases were partially offset by the favorable impact of foreign currency translation. Cost of services and product development as a percentage of revenues for the nine months ended September 30, 2012 was 40%, a decline of 1 point compared to the same period in 2011, primarily due to higher revenues and the operating leverage in the Research business.

Selling, general and administrative (“SG&A”) increased $16.4 million, or 11%, quarter-over-quarter. The increase was primarily due to higher payroll and related benefits costs, which was partially offset by favorable foreign currency impact. The higher payroll costs resulted from additional headcount, higher sales commissions, and merit salary increases. The increased headcount was primarily due to the investment in additional quota-bearing sales associates, which increased by 15%, to 1,397 at September 30, 2012 from 1,215 at September 30, 2011. SG&A expense increased 11%, or $49.7 million, in the nine months ended September 30, 2012 compared to the same period in the prior year. Consistent with the quarter-over-quarter increase, the additional expense was primarily driven by higher payroll and benefit costs.

Depreciation expense declined in both the three and nine months ended September 30, 2012 compared to the same periods in the prior year. The decline was due to certain fixed assets becoming fully depreciated which was only partially offset by additional depreciation from asset additions.

Amortization of intangibles increased to $1.4 million in the three months ended September 30, 2012 compared to $0.7 million in the same period in 2011 due to the addition of intangibles from the mid-year 2012 acquisition of Ideas International. For the nine month periods, amortization declined in 2012 due to certain intangibles becoming fully amortized, which was only partially offset by the additional amortization from the intangible assets resulting from the Ideas International acquisition.

Acquisition and Integration Charges was $0.9 million and $2.1 million in the three and nine months ended September 30, 2012 compared to zero in the same periods in 2011. These charges relate to the acquisition of Ideas International and include legal, consulting, severance, and other costs.

Operating Income increased by $2.5 million, or 5%, quarter-over-quarter, to $49.8 million in the third quarter of 2012 compared to $47.3 million in the third quarter of 2011. Operating income as a percentage of revenues declined slightly in the 2012 quarter. For the nine month periods, operating income increased 15% in 2012 compared to 2011, and as a percentage of revenues, operating income increased slightly in the 2012 period.

Interest Expense, Net decreased 3% quarter-over-quarter, primarily due to a lower average amount of debt outstanding. For the nine month periods, Interest expense, net, decreased 17%, again primarily due to a lower average amount of debt outstanding.

Other (Expense) Income, Net consisted of net foreign currency exchange gains and losses.

Provision For Income Taxes was $15.4 million for the three months ended September 30, 2012 compared to $14.0 million in the same quarter of the prior year. The effective tax rate was 33.0% for the three months ended September 30, 2012 and 31.4% for the same period in 2011. The increase in the effective tax rate was primarily due to a change in the estimated annual mix of pre-tax income by jurisdiction. The provision for income taxes was $50.6 million for the nine months ended September 30, 2012 compared to $43.4 million for the same period in 2011. The effective tax rate was 32.1% for both the nine months ended September 30, 2012 and 2011.

Net Income increased 3% in the three months ended September 30, 2012 compared to the same period in 2011. Both basic and diluted earnings per share increased by 6%, reflecting higher net income and a lower number of weighted-average shares outstanding. For the nine month periods, net income increased 17% in 2012, while basic and diluted earnings per share increased by $0.20 per share, due to substantially higher net income and to a lesser extent, lower weighted-average shares outstanding.

SEGMENT RESULTS

We evaluate reportable segment performance and allocate resources based on gross contribution margin. Gross contribution is defined as operating income excluding certain Cost of services and product development charges, SG&A expenses, Depreciation, Acquisition and integration charges, and Amortization of intangibles. Gross contribution margin is defined as gross contribution as a percentage of revenues.

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The following sections present the results of our three segments:

Research

	As Of And For The Three Months Ended September 30, 2012			As Of And For The Three Months Ended September 30, 2011			Increase (Decrease)		Percentage Increase (Decrease)		As Of And For The Nine Months Ended September 30, 2012			As Of And For The Nine Months Ended September 30, 2011			Increase (Decrease)		Percentage Increase (Decrease)
Financial Measurements:
Revenues (1)	$	284,048		$	255,979		$	28,069	11	%	$	836,970		$	749,429		$	87,541	12	%
Gross contribution (1)	$	193,540		$	173,615		$	19,925	11	%	$	571,547		$	506,420		$	65,127	13	%
Gross contribution margin		68	%		68	%		—	—			68	%		68	%		—	—
Business Measurements:
Contract value (1)	$	1,174,700		$	1,035,926		$	138,774	13	%
Client retention		83	%		82	%		1 point	—
Wallet retention		99	%		100	%		(1) point	—

(1) Dollars in thousands.

Research segment revenues increased 11% on a quarter-over-quarter basis but excluding the unfavorable effect of foreign currency translation, revenues increased 14%. The segment gross contribution margin was 68% for both quarterly periods. When comparing the nine month periods, revenues increased 12% in the 2012 period, but increased 14% when adjusted for foreign currency impact. The segment gross contribution margin was 68% for both the nine months ended September 30, 2012 and 2011.

Research contract value at September 30, 2012 increased 13% compared to September 30, 2011 and 14% excluding the foreign currency translation impact. Contract value increased across all of the Company’s industry types, client sizes, and sales regions. Client retention increased by 1 point while wallet retention declined by 1 point.

Consulting

	As Of And For The Three Months Ended September 30, 2012			As Of And For The Three Months Ended September 30, 2011			Increase (Decrease)			Percentage Increase (Decrease)		As Of And For The Nine Months Ended September 30, 2012			As Of And For The Nine Months Ended September 30, 2011			Increase (Decrease)		Percentage Increase (Decrease)
Financial Measurements:
Revenues (1)	$	71,731		$	70,815		$	916		1	%	$	222,970		$	219,407		$	3,563	2	%
Gross contribution (1)	$	24,380		$	24,458		$	(78	)	—		$	79,886		$	78,820		$	1,066	1	%
Gross contribution margin		34	%		35	%		(1) point		—			36	%		36	%		—	—
Business Measurements:
Backlog (1)	$	106,100		$	92,887		$	13,213		14	%
Billable headcount		499			482			17		4	%
Consultant utilization		64	%		61	%		3 points		—			67	%		62	%		5 points	—
Average annualized revenue per billable headcount	$	415		$	404		$	11		3	%	$	425		$	404		$	21	5	%

(1) Dollars in thousands.

Consulting revenues increased 1% quarter-over-quarter, due to higher revenues in the core consulting business, primarily driven by higher utilization. This increase was partially offset by lower revenues in our contract optimization business, which can fluctuate from quarter-to-quarter. Excluding the unfavorable impact of foreign currency translation, revenues increased 4% quarter-over-quarter. The gross contribution margin declined by 1 point, primarily driven by the lower revenues in our contract optimization business, which has a higher contribution margin than core consulting or SAS.

For the nine month periods, revenues increased 2% in 2012, again due to higher core consulting revenues, which was partially offset by lower contract optimization and SAS revenues. Consulting revenues increased 4% excluding the unfavorable impact of foreign currency translation. The gross contribution margin was 36% for both nine month periods. Backlog at September 30, 2012 increased 14% compared to September 30, 2011.

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Events

	As Of And For The Three Months Ended September 30, 2012			As Of And For The Three Months Ended September 30, 2011			Increase (Decrease)			Percentage Increase (Decrease)		As Of And For The Nine Months Ended September 30, 2012			As Of And For The Nine Months Ended September 30, 2011			Increase (Decrease)		Percentage Increase (Decrease)
Financial Measurements:
Revenues (1)	$	18,627		$	18,990		$	(363	)	(2	)%	$	81,119		$	72,058		$	9,061	13	%
Gross contribution (1)	$	4,511		$	5,550		$	(1,039	)	(19	)%	$	32,867		$	28,533		$	4,334	15	%
Gross contribution margin		24	%		29	%		(5) points		—			41	%		40	%		1 point	—
Business Measurements:
Number of events		14			16			(2	)	(13	)%		48			48			—	—
Number of attendees		5,566			6,676			(1,110	)	(17	)%		23,759			22,308			1,451	7	%

(1) Dollars in thousands.

Events revenues were $18.6 million in the third quarter of 2012, a decrease of 2% compared to third quarter 2011, due to a shift in the events calendar and the impact of foreign exchange. Excluding the foreign exchange impact, total Events revenues increased 2% in the third quarter of 2012. The gross contribution margin decreased 5 points in the third quarter of 2012 as compared to the third quarter of 2011. Both revenues and the gross contribution margin were adversely impacted by the move of two large events into the fourth quarter of 2012 that previously were held in the third quarter of 2011.

For the nine month periods, Events revenues increased $9.1 million in 2012, or 13%, primarily due to higher revenues from our ongoing events. Adjusted for the unfavorable impact of foreign currency translation, revenues increased 16%. The 48 events held through September 30, 2012 consisted of 43 ongoing events and 5 new events. Overall, we had a 7% increase in the number of attendees and a 15% increase in exhibitors, while average revenue increased 4% for attendees but declined 3% for exhibitors. The gross contribution margin increased 1 point, primarily due to a higher contribution from our ongoing events.

LIQUIDITY AND CAPITAL RESOURCES

The Company has a five-year credit agreement that provides for a $200.0 million term loan and a $400.0 million revolving credit facility (the “2010 Credit Agreement”). Under the revolving credit facility, amounts may be borrowed, repaid, and re-borrowed through the maturity date of the agreement in December 2015. The credit arrangement 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, up to an additional $150.0 million in the aggregate.

We finance our operations primarily through cash generated from our on-going operating activities. At September 30, 2012, we had $255.4 million of cash and cash equivalents and over $354.0 million of available borrowing capacity under our revolving credit facility. Our cash and cash equivalents are held in numerous locations throughout the world, with approximately 65% held outside the United States at September 30, 2012. We believe that we have adequate liquidity and that the cash we expect to earn from our on-going operating activities, our existing cash balances, and the borrowing capacity we have under our revolving credit facility will be sufficient for our currently anticipated needs.

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The following table summarizes the changes in the Company’s cash and cash equivalents (in thousands):

	Nine Months Ended September 30, 2012			Nine Months Ended September 30, 2011			Cash Increase (Decrease)
Cash provided by operating activities	$	208,751		$	176,465		$	32,286
Cash used in investing activities		(41,136	)		(23,720	)		(17,416	)
Cash used by financing activities		(58,374	)		(111,141	)		52,767
Net increase in cash and cash equivalents		109,241			41,604			67,637
Effects of exchange rates		3,411			(4,882	)		8,293
Beginning cash and cash equivalents		142,739			120,181			22,558
Ending cash and cash equivalents	$	255,391		$	156,903		$	98,488

Operating

Operating cash flow increased by $32.3 million when comparing the nine months ended September 30, 2012 to the same period in 2011. The increase was primarily due to $15.2 million in higher net income and significantly higher collections on receivables and other positive working capital changes. We also had lower cash payments for interest on our debt. These increases were partially offset by higher cash payments for income taxes in 2012.

Investing

We used an additional $17.4 million of cash in our investment activities in the 2012 period. The increase was primarily due to $8.0 million in additional capital expenditures from the on-going renovation of our Stamford headquarters facility, which are fully reimbursable by the facility landlord, and $10.3 million of cash used for our acquisition of Ideas International.

Financing

We used significantly less cash in our financing activities in the 2012 period, primarily due to a lower number of shares repurchased. Cash used for share repurchases declined $51.9 million, from $141.2 million in the 2011 period compared to $89.3 million in the 2012 period. The Company repurchased 2.3 million shares through September 30, 2012 compared to 3.9 million shares through September 30, 2011. The decrease in the number of shares repurchased was due to the substantially higher market value of our Common Stock in the 2012 period.

OBLIGATIONS AND COMMITMENTS

2010 Credit Agreement

The 2010 Credit Agreement provides for a five-year, $200.0 million term loan and a $400.0 million revolving credit facility, and 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. To date, the Company has not borrowed under the expansion feature. The Company had $200.0 million outstanding under the 2010 Credit Agreement as of September 30, 2012, which included $157.5 million outstanding under the term loan and $42.5 million outstanding under the revolver.

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. See Note 7 — Debt herein in the Notes to the Condensed Consolidated Financial Statements for additional information regarding the 2010 Credit Agreement.

Off-Balance Sheet Arrangements

Through September 30, 2012, we have not entered into any off-balance sheet arrangements or transactions with unconsolidated entities or other persons.

BUSINESS AND TRENDS

Our quarterly and annual revenues, operating income, and cash flows fluctuate as a result of many factors, including: the timing of our Symposium/ITxpo series that normally occurs during the fourth calendar quarter, as well as our other events; the amount of new business generated; the mix of domestic and international business; changes in market demand for our products and services; changes in foreign currency rates; the timing of the development, introduction and marketing of new products and services; competition in the industry; and other factors. The potential fluctuations in our operating income could cause period-to-period comparisons of operating results not to be meaningful and could provide an unreliable indication of future operating results.

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FACTORS THAT MAY AFFECT FUTURE PERFORMANCE

We operate in a very competitive and rapidly changing environment that involves numerous risks and uncertainties, some of which are beyond our control. A description of the risk factors associated with our business is included under “Risk Factors” contained in Item 1A. of our 2011 Annual Report on Form 10-K which is incorporated herein by reference.

RECENTLY ISSUED ACCOUNTING STANDARDS

Accounting rules issued by the various U.S. standard setting and governmental authorities that have not yet become effective and may impact our Consolidated Financial Statements in future periods are described below, together with our assessment of the potential impact they may have on our Consolidated Financial Statements and related disclosures in future periods:

In December 2011, the FASB issued ASU No. 2011-11, Disclosures about Offsetting Assets and Liabilities. The new guidance requires disclosures about assets and liabilities that are offset or have the potential to be offset. The new disclosure requirements mandate that entities disclose both gross and net information about instruments and transactions eligible for offset in the statement of financial position as well as instruments and transactions subject to an agreement similar to a master netting arrangement. In addition, the standard requires disclosure of collateral received and posted in connection with master netting agreements or similar arrangements. These disclosures are intended to address differences in the asset and liability offsetting requirements under U.S. GAAP and International Financial Reporting Standards. This new guidance will be effective for Gartner for interim and annual reporting periods beginning January 1, 2013, with retrospective application required. While the adoption of this new guidance may result in additional disclosures, we do not expect it to have a material impact on the Company’s results of operations, cash flows, or financial position.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

INTEREST RATE RISK

We have exposure to changes in interest rates arising from borrowings under our 2010 Credit Agreement. At September 30, 2012, we had $157.5 million outstanding under the term loan and $42.5 million outstanding under the revolver. Borrowings under this facility are floating rate, which may be either prime-based or Eurodollar-based. The rate paid for these borrowings includes a base floating rate plus a margin between 0.50% and 1.25% on prime borrowings and between 1.50% and 2.25% on Eurodollar-based borrowings.

We have an interest rate swap contract which effectively converts the floating base rate on the first $200.0 million of our borrowings to a 2.26% fixed rate. The Company only hedges the base interest rate risk on the first $200.0 million of its outstanding borrowings. Accordingly, we are exposed to interest rate risk on borrowings in excess of $200.0 million. A 25 basis point increase or decrease in interest rates would change pre-tax annual interest expense on the additional revolver borrowing capacity under the 2010 Credit Agreement (not including the expansion feature) by approximately $0.9 million.

FOREIGN CURRENCY RISK

We have customers in numerous countries, and 46% and 44% of our revenues for the fiscal years ended December 31, 2011 and 2010, respectively, were derived from sales outside of the U.S. As a result, we conduct business in numerous currencies other than the U.S dollar. Among the major foreign currencies in which we conduct business are the Euro, the British Pound, the Japanese Yen, the Australian dollar, and the Canadian dollar. Our foreign currency exposure results in both translation risk and transaction risk:

Translation Risk

We are exposed to foreign currency translation risk since the functional currencies of our foreign operations are generally denominated in the local currency. Translation risk arises since the assets and liabilities that we report for our foreign subsidiaries are translated into U.S. dollars at the exchange rates in effect at the balance sheet dates, and these exchange rates fluctuate over time. These foreign currency translation adjustments are deferred and are recorded as a component of stockholders’ equity and do not impact our operating results.

A measure of the potential impact of foreign currency translation on our Condensed Consolidated Balance Sheets can be determined through a sensitivity analysis of our cash and cash equivalents. At September 30, 2012, we had over $255.0 million of cash and cash equivalents, a substantial portion of which was denominated in foreign currencies. If the foreign exchange rates of the major currencies in which we operate changed in comparison to the U.S. dollar by 10%, the amount of cash and cash equivalents we would have reported on September 30, 2012, would have increased or decreased by approximately $12.0 million.

Because our foreign subsidiaries generally operate in a local functional currency that differs from the U.S. dollar, revenues and expenses in these foreign currencies translate into higher or lower revenues and expenses in U.S. dollars as the U.S. dollar continuously weakens or strengthens against these other currencies. Therefore, changes in exchange rates may affect our consolidated revenues and expenses (as expressed in U.S. dollars) from foreign operations. Historically, this impact on our consolidated earnings has not been material since foreign currency movements in the major currencies in which we operate tend to impact our revenues and expenses fairly equally.

28

Transaction Risk

We have foreign exchange transaction risk since we typically enter into transactions in the normal course of business that are denominated in foreign currencies that differ from the local functional currency in which the foreign subsidiary operates. We typically enter into foreign currency forward exchange contracts to offset the effects of foreign currency transaction risk. These contracts are normally short term in duration and unrealized and realized gains and losses are recognized in current period earnings. At September 30, 2012, we had 30 outstanding foreign currency forward contracts with a total notional amount of $40.5 million and an immaterial net unrealized loss. All of these outstanding contracts matured by the end of October 2012.

CREDIT RISK

Financial instruments that potentially subject the Company to concentration of credit risk consist primarily of short-term, highly liquid investments classified as cash equivalents, accounts receivable, and interest rate swap contracts. The majority of the Company’s cash and cash equivalents and its interest rate swap contracts are with large investment grade commercial banks that are participants in the Company’s 2010 Credit Agreement. Accounts receivable balances deemed to be collectible from customers have limited concentration of credit risk due to our diverse customer base and geographic dispersion.

ITEM 4. CONTROLS AND PROCEDURES

We have established disclosure controls and procedures that are designed to ensure that the information we are required to disclose in our reports filed under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported in a timely manner. Specifically, these controls and procedures ensure that the information is accumulated and communicated to our executive management team, including our chief executive officer and our chief financial officer, to allow timely decisions regarding required disclosure.

Management conducted an evaluation, as of September 30, 2012, of the effectiveness of the design and operation of our disclosure controls and procedures, under the supervision and with the participation of our chief executive officer and chief financial officer. Based upon that evaluation, our chief executive officer and chief financial officer have concluded that the Company’s disclosure controls and procedures are effective in alerting them in a timely manner to material Company information required to be disclosed by us in reports filed under the Exchange Act.

In addition, there have been no changes in the Company’s internal control over financial reporting during the period covered by this report that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

29

PART II OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We are involved in legal and administrative 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 or results of operations when resolved in a future period.

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. The Company disagrees with certain of the proposed adjustments and is disputing this matter through applicable IRS and judicial procedures, as appropriate. Separately, in the second quarter of 2011 the IRS commenced an audit of the Company’s 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.

ITEM 1A. RISK FACTORS

A description of the risk factors associated with our business is included under “Risk Factors” contained in Item 1A. of our 2011 Annual Report on Form 10-K and is incorporated herein by reference.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

There were no unregistered sales of equity securities during the period covered by this report.

Issuer Purchases of Equity Securities

The Company has a $500.0 million share repurchase program to be utilized to acquire shares of Common Stock. Repurchases 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 will be funded from cash flow from operations and borrowings under the Company’s Credit Agreement. The following table provides detail related to repurchases of our Common Stock for treasury in the nine months ended September 30, 2012:

Period	Total Number of Shares Purchased		Average Price Paid Per Share		Approximate Dollar Value of Shares that may yet be Purchased Under our Share Repurchase Program (in millions)
2012 (1)
January		86,123	$	34.89
February		1,287,473		38.70
March		605,833		40.16
Total		1,979,429	$	38.98
April		1,113	$	42.94
May		38,824		42.97
June		144,894		40.04
Total		184,831	$	40.67
July		784	$	45.63
August		87,101		48.07
September		7,948		50.68
Total		95,833	$	48.27	$	231

(1) The Company paid a total of $4.6 million and $89.3 million in cash for share repurchases in the three and nine months ended September 30, 2012.

30

ITEM 6. EXHIBITS

EXHIBIT NUMBER	DESCRIPTION OF DOCUMENT
31.1	Certification of chief executive officer under Rule 13a — 14(a)/15d — 14(a).
31.2	Certification of chief financial officer under Rule 13a — 14(a)/15d — 14(a).
32	Certification under 18 U.S.C. 1350.
101	Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Condensed Consolidated Balance Sheets at September 30, 2012 and December 31, 2011, (ii) the Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2012 and 2011, (iii) the Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2012 and 2011, (iv) the Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2012 and 2011, and (v) the Notes to Condensed Consolidated Financial Statements.

Items 3, 4, and 5 of Part II are not applicable and have been omitted.

31

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Gartner, Inc.
Date: November 6, 2012	/s/ Christopher J. Lafond
	Christopher J. Lafond
	Executive Vice President and Chief Financial Officer
	(Principal Financial and Accounting Officer)

32

EX-31.1

Exhibit 31.1

CERTIFICATION

          I, Eugene A. Hall, certify that:

          (1) I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2012, of Gartner, Inc.;

          (2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

          (3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

          (4) The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d -15(f)) for the registrant and have:

a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

          (5) The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

November 6, 2012

/s/ Eugene A. Hall

Eugene A. Hall

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

          I, Christopher J. Lafond, certify that:

          (1) I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2012, of Gartner, Inc.;

          (2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

          (3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

          (4) The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d -15(f)) for the registrant and have:

a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

          (5) The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

November 6, 2012

/s/ Christopher J. Lafond

Christopher J. Lafond

Chief Financial Officer

EX-32

Exhibit 32

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

          In connection with the Quarterly Report of Gartner, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2012, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), as Chief Executive Officer of the Company and Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1)	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Eugene A. Hall
Name:	Eugene A. Hall
Title:	Chief Executive Officer
Date:	November 6, 2012
/s/ Christopher J. Lafond
Name:	Christopher J. Lafond
Title:	Chief Financial Officer
Date:	November 6, 2012

A signed original of this written statement required by Section 906 has been provided to Gartner, Inc. and will be retained by Gartner, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Stock-Based Compensation (Detail) - Stock-Based Compensation Expense Recognized In Consolidated Statements Of Operations (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Stock-based compensation expense	$ 9,200	[1]	$ 7,800	[1]	$ 28,021	[1]	$ 24,750	[1]
Retirement Eligible Employees Equity Award [Member]
Stock-based compensation expense	$ 1,500		$ 200		$ 4,700		$ 3,000

[1] The three months ended September 30, 2012 and 2011 included charges of $1.5 million and $0.2 million, respectively, related to awards to retirement-eligible employees, since awards granted to retirement-eligible employees vest on an accelerated basis. The nine months ended September 30, 2012 and 2011 included charges of $4.7 million and $3.0 million, respectively, for retirement-eligible employees.

XML

Goodwill and Intangible Assets (Detail) - Estimated Future Amortization Expense By Year From Amortizable Intangibles (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
2012 (remaining three months)	$ 1,370
2013	5,475
2014	3,600
2015	1,995
2016	702
	$ 13,142	$ 7,060

XML

Segment Information (Detail) - Information About Reportable Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues	$ 374,406	$ 345,784	$ 1,141,059	$ 1,040,894
Gross contribution	222,431	203,626	684,300	613,773
Corporate and other expenses	(172,663)	(156,376)	(518,254)	(469,174)
Operating income	49,768	47,250	166,046	144,599
Research [Member]
Revenues	284,048	255,979	836,970	749,429
Gross contribution	193,540	173,615	571,547	506,420
Consulting And Product Support Services [Member]
Revenues	71,731	70,815	222,970	219,407
Gross contribution	24,380	24,458	79,886	78,820
Operating Segments [Member]
Revenues	18,627	18,990	81,119	72,058
Gross contribution	$ 4,511	$ 5,553	$ 32,867	$ 28,533

XML

Debt (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	9 Months Ended
	Dec. 31, 2010	Sep. 30, 2012	Dec. 31, 2011
Debt Instruments Maturity Duration	5 years
Line Of Credit Facility Additional Borrowing Capacity	$ 150.0	$ 354.2
Line of Credit Facility, 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%
Debt Instrument Interest Additional Interest Above Eurodollar Rate	1.00%
Debt Instrument Interest Additional Interest Above Federal Fund Rate	1.00%
Notional Amount of Interest Rate Derivatives		200.0
Derivative, Fixed Interest Rate		2.26%
Derivative Maturity Month And Year		September 2015
Interest Rate Fair Value Hedge Derivative at Fair Value, Net		11.0	9.9
Letters of Credit Outstanding, Amount		10.1
Letter of Credit [Member] | Revolver [Member]
Line of Credit Facility, Maximum Borrowing Capacity	40.0
Euro Dollar Rate [Member] | Federal Funds Rate [Member]
Minimum Applicable Margin Rate	0.50%
Maximum Applicable Margin Rate	1.25%
Euro Dollar Rate [Member]
Minimum Applicable Margin Rate	1.50%
Maximum Applicable Margin Rate	2.25%
Bank Term Loan [Member]
Line of Credit Facility, Maximum Borrowing Capacity	200.0
Line of Credit Facility, Frequency of Payments	19 consecutive quarterly installments
Debt Instrument, Maturity Date	Dec. 22, 2015
Revolver [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 400.0
Debt Instrument, Maturity Date	Dec. 22, 2015

XML

Stock-Based Compensation (Detail) - Summary Of Changes In Stock Options Outstanding (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011
Options outstanding	0.4		1.2
Per Share Weighted- Average Exercise Price (in Dollars per share)	$ 11.13		$ 10.93
Weighted Average Remaining Contractual Term	1 year 109 days		1 year 171 days
Aggregate Intrinsic Value (in Dollars)	$ 15.6		$ 27.7
Exercised (1)	(0.8)	[1]
Exercised (1) (in Dollars per share)	$ 10.80	[1]
Exercised (1) (in Dollars)		[1]

[1] Options exercised during the nine months ended September 30, 2012 had an intrinsic value of $22.1 million.

XML

Acquisition (Detail) - Aggregate Preliminary Purchase Price Allocation to Assets Acquired and Liabilities Assumed in Acquisition (Parentheticals) (Ideas International Limited [Member], USD $) In Millions, unless otherwise specified	May 31, 2012
Ideas International Limited [Member]
Goodwill	$ 7.5
Amortizable intangible assets	$ 8.4

XML

Debt (Detail) - Borrowings (Parentheticals) (USD $) In Millions, unless otherwise specified				9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Dec. 31, 2010	Sep. 30, 2012 Bank Term Loan [Member]
Eurodollar base rate				0.36%
Margin				1.50%
Notional fixed-for-floating interest rate swap contract (in Dollars)	$ 200.0
Debt, effective annual interest rate	3.76%	3.76%
Revolver, additional borrowing capacity (in Dollars)	$ 354.2		$ 150.0

XML

Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Intangible Assets and Goodwill [Table Text Block]

The following table presents changes to the carrying amount of goodwill by reporting unit during the nine months ended September 30, 2012 (in thousands):

	Research		Consulting		Events		Total
Balance, December 31, 2011	$	366,980	$	99,677	$	41,893	$	508,550
Addition due to acquisition (1)		7,455		—		—		7,455
Foreign currency translation adjustments		2,488		683		24		3,195
Balance, September 30, 2012 (2)	$	376,923	$	100,360	$	41,917	$	519,200

Schedule of Finite-Lived Intangible Assets [Table Text Block]

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

September 30, 2012	Trade Name			Customer Relationships			Content			Software			Total
Gross cost, December 31, 2011	$	5,758		$	7,210		$	—		$	—		$	12,968
Additions due to acquisition (1)		240			3,170			3,170			1,955			8,535
Foreign currency translation adjustments		18			207			234			134			593
Gross cost		6,016			10,587			3,404			2,089			22,096
Accumulated amortization (2)		(3,210	)		(5,238	)		(284	)		(222	)		(8,954	)
Balance, September 30, 2012	$	2,806		$	5,349		$	3,120		$	1,867		$	13,142

December 31, 2011	Trade Name			Customer Relationships			Content		Software		Total
Gross cost, December 31, 2010	$	5,758		$	7,210			—	—	$	12,968
Foreign currency translation adjustments		—			—			—	—		—
Gross cost		5,758			7,210			—	—		12,968
Accumulated amortization (2)		(2,303	)		(3,605	)		—	—		(5,908	)
Balance, December 31, 2011	$	3,455		$	3,605			—	—	$	7,060

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

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

2012 (remaining three months)	$	1,370
2013		5,475
2014		3,600
2015		1,995
2016		702
	$	13,142

XML

Goodwill and Intangible Assets (Detail) - Changes to Carrying Amount of Goodwill by Reporting Unit (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Balance, December 31, 2011	$ 508,550
Addition due to acquisition (1)	7,455	[1]
Foreign currency translation adjustments	3,195
Balance, September 30, 2012 (2)	519,200	[2]
Research [Member]
Balance, December 31, 2011	366,980
Addition due to acquisition (1)	7,455	[1]
Foreign currency translation adjustments	2,488
Balance, September 30, 2012 (2)	376,923	[2]
Consulting And Product Support Services [Member]
Balance, December 31, 2011	99,677
Foreign currency translation adjustments	683
Balance, September 30, 2012 (2)	100,360	[2]
Operating Segments [Member]
Balance, December 31, 2011	41,893
Foreign currency translation adjustments	24
Balance, September 30, 2012 (2)	41,917	[2]
Ideas International Limited [Member]
Addition due to acquisition (1)	$ 7,500

[1] The Company acquired Ideas International in the second quarter of 2012 and recorded $7.5 million of goodwill. All of the recorded goodwill resulting from the acquisition has been included in the Research segment. See Note 2-Acquisition above for additional information.

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

XML

Stock-Based Compensation (Detail) - Weighted-Average Assumptions Used To Determine Fair Value Of SARs Grants On Date Of Grant Using Black-Scholes-Merton Valuation Model (Stock Appreciation Rights (SARs) [Member])	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Stock Appreciation Rights (SARs) [Member]
Expected dividend yield (2)	0.00%	[1],[2]	0.00%	[1],[2]
Expected stock price volatility (3)	40.00%	[1],[3]	38.00%	[1],[3]
Risk-free interest rate (4)	0.80%	[1],[4]	2.20%	[1],[4]
Expected life in years (5)	4 years 219 days	[1],[5]	4 years 292 days	[1],[5]

[1] The Company did not make any SARs grants during the three months ended September 30, 2012 and 2011.

[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 the Company's 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). Beginning January 1, 2012, the expected life has been calculated based on the Company's historical exercise data. Previously, the Company determined the expected life based on a simplified calculation permitted by SEC SAB No. 107 and SAB No. 110 since the necessary historical exercise data was not available. The change in methodology had an insignificant impact on the calculation of the expected life.

XML

Stock-Based Compensation (Detail) - Stock-Based Compensation Expense By Award Type (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Total expense (1)	$ 9,200,000	[1]	$ 7,800,000	[1]	$ 28,021,000	[1]	$ 24,750,000	[1]
Stock Appreciation Rights (SARs) [Member]
Stock-based compensation expense	2,400,000		1,000,000		5,000,000		3,400,000
Common Stock Equivalents (CSEs) [Member]
Stock-based compensation expense	100,000		100,000		400,000		400,000
Restricted Stock Units (RSUs) [Member]
Stock-based compensation expense	$ 6,700,000		$ 6,700,000		$ 22,600,000		$ 21,000,000

[1] The three months ended September 30, 2012 and 2011 included charges of $1.5 million and $0.2 million, respectively, related to awards to retirement-eligible employees, since awards granted to retirement-eligible employees vest on an accelerated basis. The nine months ended September 30, 2012 and 2011 included charges of $4.7 million and $3.0 million, respectively, for retirement-eligible employees.

XML

Goodwill and Intangible Assets (Detail) - Carrying Amounts of Amortizable Intangible Assets (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011
Gross cost	$ 12,968		$ 12,968
Additions due to acquisition (1)	8,535	[1]
Foreign currency translation adjustments	593		0
Gross cost	22,096		12,968
Accumulated amortization (2)	(8,954)	[2]	(5,908)	[2]
Net	13,142		7,060
Ideas International Limited [Member]
Additions due to acquisition (1)	8,500
Trade Names [Member]
Gross cost	5,758		5,758
Additions due to acquisition (1)	240	[1]
Foreign currency translation adjustments	18		0
Gross cost	6,016		5,758
Accumulated amortization (2)	(3,210)	[2]	(2,303)	[2]
Net	2,806		3,455
Customer Relationships [Member]
Gross cost	7,210		7,210
Additions due to acquisition (1)	3,170	[1]
Foreign currency translation adjustments	207		0
Gross cost	10,587		7,210
Accumulated amortization (2)	(5,238)	[2]	(3,605)	[2]
Net	5,349		3,605
Media Content [Member]
Additions due to acquisition (1)	3,170	[1]
Foreign currency translation adjustments	234		0
Gross cost	3,404
Accumulated amortization (2)	(284)	[2]		[2]
Net	3,120
Computer Software, Intangible Asset [Member]
Additions due to acquisition (1)	1,955	[1]
Foreign currency translation adjustments	134		0
Gross cost	2,089
Accumulated amortization (2)	(222)	[2]		[2]
Net	$ 1,867

[1] The Company acquired Ideas International in the second quarter of 2012 and recorded a total of $8.5 million of amortizable intangible assets. See Note 2-Acquisition above for additional information.

[2] Intangible assets are being amortized against earnings over the following periods: Trade name-2 to 5 years; Customer relationships-4 years; Content-4 years; Software-3 years.

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Income Taxes (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Income Tax Expense (Benefit)	$ 15,436,000	$ 13,963,000	$ 50,607,000	$ 43,364,000
Effective Income Tax Rate, Continuing Operations	33.00%	31.40%	32.10%	32.10%
Unrecognized Tax Benefits	20,000,000		20,000,000		18,300,000
Unrecognized Tax Benefits Reductions Resulting From Settlements With Taxing Authorities And Lapse Of Applicable Statute Of Limitations			4,800,000
Liability For Uncertain Tax Positions	$ 15,200,000		$ 15,200,000		$ 15,400,000

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Stock-Based Compensation (Detail) - Summary Of Changes In Stock Options Outstanding (Parentheticals) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Intrinsic Value, options exercised	$ 22.1

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Earnings per Share

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Text Block]

Note 3 — Earnings per Share

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Numerator:
Net income used for calculating basic and diluted earnings per share	$	31,375	$	30,464	$	107,080	$	91,878
Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share		93,522		96,057		93,429		96,462
Common stock equivalents associated with stock-based compensation plans (1)		2,089		2,202		2,362		3,005
Shares used in the calculation of diluted earnings per share		95,611		98,259		95,791		99,467
Basic earnings per share	$	0.34	$	0.32	$	1.15	$	0.95
Diluted earnings per share	$	0.33	$	0.31	$	1.12	$	0.92

(1) Certain common stock equivalents were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive. These amounted to 0.4 million and 1.6 million for the three months ended September 30, 2012 and 2011, respectively, and 0.7 million and 0.3 million for the nine months ended September 30, 2012 and 2011, respectively.

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Derivatives and Hedging (Detail) - Outstanding Derivatives Contracts (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011
Number of Outstanding Contracts	31		63
Contract Notional Amount	$ 240,530		$ 330,335
Fair Value Asset (Liability)	(11,240)	[1]	(9,717)	[1]
OCI Unrealized (Loss), Net Of Tax	(6,617)		(5,934)
Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Interest Rate Swap [Member]
Number of Outstanding Contracts	1	[2]	1	[2]
Contract Notional Amount	200,000	[2]	200,000	[2]
Fair Value Asset (Liability)	(11,000)	[1],[2]	(9,891)	[1],[2]
OCI Unrealized (Loss), Net Of Tax	(6,617)	[2]	(5,934)	[2]
Other Liabilities [Member] | Interest Rate Swap [Member]
Number of Outstanding Contracts			2	[3]
Contract Notional Amount			30,750	[3]
Fair Value Asset (Liability)			(98)	[1],[3]
OCI Unrealized (Loss), Net Of Tax				[3]
Accrued Liabilities Current [Member] | Foreign Currency Forward Contracts, Net [Member]
Number of Outstanding Contracts	30	[4]
Contract Notional Amount	40,530	[4]
Fair Value Asset (Liability)	(240)	[1],[4]
OCI Unrealized (Loss), Net Of Tax		[4]
Other Current Assets [Member] | Foreign Currency Forward Contracts, Net [Member]
Number of Outstanding Contracts			60	[4]
Contract Notional Amount			99,585	[4]
Fair Value Asset (Liability)			272	[1],[4]
OCI Unrealized (Loss), Net Of Tax				[4]

[1] See Note 11 - Fair Value Disclosures for the determination of the fair value of these instruments.

[2] The Company has designated 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 deferred and are recorded in OCI, net of tax effect.

[3] These swaps matured in January 2012. Changes in the fair value of these swaps were recognized in earnings.

[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 currency. 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 expense, net since the Company does not designate these contracts as hedges for accounting purposes. Substantially all of the outstanding contracts at September 30, 2012 matured by the end of October 2012.

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Stock-Based Compensation (Detail) - Summary Of Changes In RSUs Outstanding (USD $)	9 Months Ended
	Sep. 30, 2012
Restricted Stock Units (RSUs) [Member]
Outstanding	3,100,000
Per Share Weighted Average Grant Date Fair Value (in Dollars per share)	$ 21.53
Granted (1)	700,000	[1]
Granted (1) (in Dollars per share)	$ 37.97	[1]
Vested and released	(1,300,000)
Vested and released (in Dollars per share)	$ 19.51
Forfeited
Forfeited (in Dollars per share)
Outstanding	2,500,000	[2],[3]
Per Share Weighted Average Grant Date Fair Value (in Dollars per share)	$ 27.93	[2],[3]
Executive Officer [Member] | Performance Shares [Member]
Granted (1)	300,000
Non Executive [Member] | Service Based Awards [Member]
Granted (1)	400,000

[1] The 0.7 million RSUs granted in 2012 consisted of 0.3 million 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 awarded to executives represents the target amount of the award for the year, which is tied to an increase in the Company's subscription-based Research contract value ("CV") for 2012. The final number of performance-based RSUs that will be granted to executives in 2012 could range from 0% to 200% of the target amount, depending on the actual increase in CV for the year as measured on December 31, 2012. If the specified minimum level of achievement is not met, the performance-based RSUs will be forfeited in their entirety, and any compensation expense previously 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.

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Fair Value Disclosures (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The Company’s assets and liabilities remeasured to fair value are presented in the following table (in thousands):

Description:	Fair Value September 30, 2012		Fair Value December 31, 2011
Assets:
Deferred compensation plan assets (1)	$	27,000	$	25,050
Pension reinsurance asset (2)		14,350		12,980
Foreign currency forward contracts (3)		—		272
	$	41,350	$	38,302
Liabilities:
Deferred compensation plan liabilities (1)	$	30,290	$	28,100
Foreign currency forward contracts (3)		240		—
Interest rate swap contract (4)		11,000		9,989
	$	41,530	$	38,089

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Derivatives and Hedging (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

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, 2012
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	$	(11,000	)	Other liabilities	$	(6,617	)
Foreign currency forwards (2)		30		40,530		(240	)	Accrued liabilities		—
Total		31	$	240,530	$	(11,240	)		$	(6,617	)

December 31, 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	$	(9,891	)	Other liabilities	$	(5,934	)
Interest rate swaps (3)		2		30,750		(98	)	Other liabilities		—
Foreign currency forwards (2)		60		99,585		272		Other current assets		—
Total		63	$	330,335	$	(9,717	)		$	(5,934	)

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]

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:	2012		2011			2012			2011
Interest expense, net (1)	$	907	$	1,022		$	2,657		$	3,100
Other expense (income), net (2)		36		(1,976	)		(563	)		1,794
Total expense (income), net	$	943	$	(954	)	$	2,094		$	4,894

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Debt (Detail) - Borrowings (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Amount outstanding	$ 200,000		$ 200,000
Bank Term Loan [Member]
Amount outstanding	157,500	[1]	180,000	[1]
Contractual annualized interest rate	1.86%	[1]
Revolver [Member]
Amount outstanding	$ 42,500	[1],[2]	$ 20,000	[1],[2]
Contractual annualized interest rate	1.86%	[1],[2]

[1] The term and revolver contractual rates consisted of a 0.36%, three-month floating Eurodollar base rate plus a margin of 1.50%. However, the Company has an interest rate swap contract which converts the floating Eurodollar base rates to a fixed base rate on $200.0 million of borrowings (see below). As a result, the effective annual interest rate on the total debt outstanding under the 2010 Credit Facility, including the effect of the swap, was 3.76% as of September 30, 2012 and December 31, 2011.

[2] The Company had $354.2 million of additional borrowing capacity on the revolver (not including the expansion feature) as of September 30, 2012.

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Stock-Based Compensation (Detail) - Summary Of Changes In RSUs Outstanding (Parentheticals)	9 Months Ended
	Sep. 30, 2012
RSUs granted, weighted-average remaining contractual term	1 year 73 days
Restricted Stock Units (RSUs) [Member]
Granted (in Shares)	700,000	[1]
Target Amount [Member] | Minimum [Member]
Actual number of RSUs that will ultimately be granted	0.00%
Target Amount [Member] | Maximum [Member]
Actual number of RSUs that will ultimately be granted	200.00%
Executive Officer [Member] | Performance Shares [Member]
Granted (in Shares)	300,000
Non Executive [Member] | Service Based Awards [Member]
Granted (in Shares)	400,000

[1] The 0.7 million RSUs granted in 2012 consisted of 0.3 million 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 awarded to executives represents the target amount of the award for the year, which is tied to an increase in the Company's subscription-based Research contract value ("CV") for 2012. The final number of performance-based RSUs that will be granted to executives in 2012 could range from 0% to 200% of the target amount, depending on the actual increase in CV for the year as measured on December 31, 2012. If the specified minimum level of achievement is not met, the performance-based RSUs will be forfeited in their entirety, and any compensation expense previously recorded will be reversed.

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Business and Basis of Presentation (Detail)	9 Months Ended
	Sep. 30, 2012
Number of Reportable Segments	3

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Acquisition (Detail) (Ideas International Limited [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	May 31, 2012
Ideas International Limited [Member]
Entity Number of Employees			40
Business Acquisition, Cost of Acquired Entity, Purchase Price			$ 18.8
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Integration Merger And Acquisition Related Costs And Other Charges	$ 0.9	$ 2.1

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Acquisition

9 Months Ended

Sep. 30, 2012

Business Combination Disclosure [Text Block]

Note 2 — Acquisition

On May 31, 2012, the Company acquired Ideas International Limited (“Ideas International”), a publicly-owned Australian corporation (ASX: IDE) headquartered outside of Sydney with 40 employees that provides intelligence on IT infrastructure configurations and pricing data to IT professionals. The Company paid aggregate cash consideration of $18.8 million for 100% of the outstanding shares of Ideas International. The Company’s strategic objectives in acquiring Ideas International are to leverage Gartner’s scale and worldwide distribution capability and introduce Ideas International’s products and services to Gartner’s much larger end user client base and to further penetrate the technology vendor market. Ideas International’s business operations have been integrated into the Company’s Research segment.

Gartner’s financial statements include the operating results of Ideas International beginning with the date of acquisition. These operating results were not material to the Company’s consolidated or segment operating results for the three and nine months ended September 30, 2012. The Company recorded $0.9 million and $2.1 million of pre-tax acquisition and integration charges related to the acquisition in the three and nine months ended September 30, 2012, respectively, which are classified in Acquisition and integration charges in the Condensed Consolidated Statements of Operations. Included in these charges are legal, consulting, and severance costs, all of which were direct and incremental charges from the acquisition. Had the Company acquired Ideas International on January 1, 2010, the impact to the Company’s operating results for 2011 and 2010 would not have been material, and as a result pro forma financial information for those periods has not been presented.

The acquisition was accounted for under the acquisition method of accounting as prescribed by FASB ASC Topic 805, Business Combinations. The acquisition method of accounting requires the consideration paid to be allocated to the net assets and liabilities acquired based on their estimated fair values as of the acquisition date, and any excess of the purchase price over the estimated fair value of the net assets acquired, including identifiable intangible assets, must be allocated to goodwill. The Company considers its allocation of the respective purchase price to be preliminary, particularly with respect to the valuation of certain tax related items. In accordance with FASB ASC Topic 805, a final determination of the purchase price allocation and resulting goodwill must be made within one year of the acquisition date. The Company anticipates that none of the recorded goodwill arising from the acquisition will be deductible for tax purposes. All of the recorded goodwill was included in the Company’s Research segment. The Company believes the recorded goodwill is supported by the anticipated revenues related to the acquisition.

The following table summarizes the preliminary allocation of the purchase price to the fair value of the assets acquired and liabilities assumed in the acquisition (dollars in thousands):

Assets:
Cash	$	8,502
Fees receivable		1,310
Prepaid expenses and other current assets		560
Goodwill and amortizable intangible assets (1)		15,990
Total assets	$	26,362
Liabilities:
Accounts payable and accrued liabilities	$	2,203
Deferred revenues (2)		5,321
Total liabilities	$	7,524

(1)	Includes $7.5 million allocated to goodwill and $8.5 million allocated to amortizable intangible assets. See Note 6—Goodwill and Intangible Assets below for additional information.
(2)	The fair value of the cost to fulfill the deferred revenue obligations was determined by estimating the costs to provide the services plus a normal profit margin, and did not include costs associated with selling efforts.

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Acquisition (Detail) - Aggregate Preliminary Purchase Price Allocation to Assets Acquired and Liabilities Assumed in Acquisition (Ideas International Limited [Member], USD $) In Thousands, unless otherwise specified	May 31, 2012
Ideas International Limited [Member]
Assets:
Cash	$ 8,502
Fees receivable	1,310
Prepaid expenses and other current assets	560
Goodwill and amortizable intangible assets (1)	15,990	[1]
Total assets	26,362
Liabilities:
Accounts payable and accrued liabilities	2,203
Deferred revenues (2)	5,321	[2]
Total liabilities	$ 7,524

[1] Includes $7.5 million allocated to goodwill and $8.5 million allocated to amortizable intangible assets. See Note 6-Goodwill and Intangible Assets below for additional information.

[2] The fair value of the cost to fulfill the deferred revenue obligations was determined by estimating the costs to provide the services plus a normal profit margin, and did not include costs associated with selling efforts.

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Stock-Based Compensation (Detail) - Summary Of Changes In SARs Outstanding (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011
Granted	1 year 73 days
Stock Appreciation Rights (SARs) [Member] | Unvested [Member]
Outstanding (in Shares)	1,200,000
Stock Appreciation Rights (SARs) [Member]
Outstanding (in Shares)	2,100,000	[1],[2]	2,500,000
Per Share Weighted- Average Exercise Price	$ 24.27	[1],[2]	$ 20.39
Per Share Weighted- Average Grant Date Fair Value	$ 8.94	[1],[2]	$ 7.66
Weighted Average Remaining Contractual Term	4 years 83 days	[1],[2]	4 years
Vested and exercisable at September 30, 2012 (2) (in Shares)	900,000	[2]
Vested and exercisable at September 30, 2012 (2)	$ 18.50	[2]
Vested and exercisable at September 30, 2012 (2)	$ 7.08	[2]
Vested and exercisable at September 30, 2012 (2)	3 years 62 days	[2]
Granted (in Shares)	400,000
Granted	$ 37.81
Granted	$ 12.99
Granted	6 years 131 days
Forfeited	0 years
Forfeited (in Shares)
Forfeited
Forfeited
Exercised (in Shares)	(800,000)
Exercised	$ 18.60
Exercised	$ 6.86
Exercised	0 years

[1] As of September 30, 2012, 1.2 million of SARs outstanding were unvested. The Company expects that substantially all of these unvested awards will vest in future periods.

[2] As of September 30, 2012, total SARs outstanding had an intrinsic value of $45.4 million. SARs vested and exercisable had an intrinsic value of $25.5 million.

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Goodwill and Intangible Assets (Detail) - Carrying Amounts of Amortizable Intangible Assets (Parentheticals) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Additions due to acquisition (in Dollars)	$ 8,535	[1]
Minimum [Member] | Trade Names [Member]
Intangiblе assеts, usеful lifе (yеars)	2 years
Maximum [Member] | Trade Names [Member]
Intangiblе assеts, usеful lifе (yеars)	5 years
Ideas International Limited [Member]
Additions due to acquisition (in Dollars)	8,500
Trade Names [Member]
Additions due to acquisition (in Dollars)	240	[1]
Customer Relationships [Member]
Additions due to acquisition (in Dollars)	3,170	[1]
Intangiblе assеts, usеful lifе (yеars)	4 years
Media Content [Member]
Additions due to acquisition (in Dollars)	3,170	[1]
Intangiblе assеts, usеful lifе (yеars)	4 years
Computer Software, Intangible Asset [Member]
Additions due to acquisition (in Dollars)	$ 1,955	[1]
Intangiblе assеts, usеful lifе (yеars)	3 years

[1] The Company acquired Ideas International in the second quarter of 2012 and recorded a total of $8.5 million of amortizable intangible assets. See Note 2-Acquisition above for additional information.

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Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 255,391		$ 142,739
Fees receivable, net	370,951		421,033
Deferred commissions	65,870		78,492
Prepaid expenses and other current assets	89,766		63,521
Total current assets	781,978		705,785
Property, equipment and leasehold improvements, net	80,344		68,132
Goodwill	519,200	[1]	508,550
Intangible assets, net	13,142		7,060
Other assets	84,484		90,345
Total Assets	1,479,148		1,379,872
Current liabilities:
Accounts payable and accrued liabilities	206,290		259,490
Deferred revenues	682,603		611,647
Current portion of long-term debt	80,000		50,000
Total current liabilities	968,893		921,137
Long-term debt	120,000		150,000
Other liabilities	128,790		126,951
Total Liabilities	1,217,683		1,198,088
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	78		78
Additional paid-in capital	671,255		646,815
Accumulated other comprehensive income, net	8,673		5,793
Accumulated earnings	849,659		742,579
Treasury stock, at cost, 62,579,388 and 62,891,251 common shares, respectively	(1,268,200)		(1,213,481)
Total Stockholders’ Equity	261,465		181,784
Total Liabilities and Stockholders’ Equity	$ 1,479,148		$ 1,379,872

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

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Stock-Based Compensation (Detail) - Summary Of Changes In CSEs Outstanding (Common Stock Equivalents [Member], USD $)	9 Months Ended
	Sep. 30, 2012
Common Stock Equivalents [Member]
Outstanding	97,268
Per Share Weighted Average Grant Date Fair Value (in Dollars per share)	$ 15.93
Granted	8,631
Granted (in Dollars per share)	$ 44.63
Converted to common shares	(6,173)
Converted to common shares (in Dollars per share)	$ 44.60
Outstanding	99,726
Per Share Weighted Average Grant Date Fair Value (in Dollars per share)	$ 16.64

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Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Operating activities:
Net income	$ 107,080		$ 91,878
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of intangibles	21,407		24,931
Stock-based compensation expense	28,021	[1]	24,750	[1]
Excess tax benefits from stock-based compensation	(20,366)		(22,458)
Deferred taxes	(3,268)		3,812
Amortization of debt issue costs	1,512		1,733
Changes in assets and liabilities, net of acquisition:
Fees receivable, net	54,157		16,023
Deferred commissions	13,202		11,354
Prepaid expenses and other current assets	(18,803)		(6,241)
Other assets	2,429		2,051
Deferred revenues	60,681		74,021
Accounts payable, accrued, and other liabilities	(37,301)		(45,389)
Cash provided by operating activities	208,751		176,465
Investing activities:
Additions to property, equipment and leasehold improvements	(30,800)		(23,720)
Acquisition (net of cash acquired)	(10,336)
Cash used in investing activities	(41,136)		(23,720)
Financing activities:
Proceeds from stock issued under stock plans	10,560		17,771
Proceeds from debt issuance	22,500		5,000
Payments on debt	(22,500)		(15,156)
Purchases of treasury stock	(89,300)		(141,214)
Excess tax benefits from stock-based compensation	20,366		22,458
Cash used by financing activities	(58,374)		(111,141)
Net increase in cash and cash equivalents	109,241		41,604
Effects of exchange rates on cash and cash equivalents	3,411		(4,882)
Cash and cash equivalents, beginning of period	142,739		120,181
Cash and cash equivalents, end of period	$ 255,391		$ 156,903

[1] The three months ended September 30, 2012 and 2011 included charges of $1.5 million and $0.2 million, respectively, related to awards to retirement-eligible employees, since awards granted to retirement-eligible employees vest on an accelerated basis. The nine months ended September 30, 2012 and 2011 included charges of $4.7 million and $3.0 million, respectively, for retirement-eligible employees.

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Equity (Detail) - Share Repurchase Activity (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Number of shares repurchased (1)	95,833	[1]	1,543,069	[1]	2,260,093	[1]	3,886,521	[1]
Cost of repurchased shares (in thousands) (in Dollars)	$ 4,626		$ 53,354		$ 89,300		$ 141,214

[1] The average purchase price for the shares was $48.27 and $39.51 for the three and nine months ended September 30, 2012 respectively, and $34.58 and $36.33 for the three and nine months ended September 30, 2011, respectively.

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Earnings per Share (Detail) - Calculations Of Basic And Diluted Earnings Per Share (Parentheticals) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Common stock equivalents that were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive	0.4	1.6	0.7	0.3

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Fair Value Disclosures (Detail) - Assets And Liabilities Measured At Fair Value On Recurring Basis (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Assets:
Assets measured at fair value on a recurring basis	$ 41,350		$ 38,302
Liabilities:
Liabilities measured at fair value on a recurring basis	41,530		38,089
Plan Assets [Member]
Assets:
Assets measured at fair value on a recurring basis	27,000	[1]	25,050	[1]
Pension Reinsurance Asset [Member]
Assets:
Assets measured at fair value on a recurring basis	14,350	[2]	12,980	[2]
Plan Liabilities [Memeber]
Liabilities:
Liabilities measured at fair value on a recurring basis	30,290	[1]	28,100	[1]
Foreign Currency Forward Contracts, Net [Member]
Assets:
Assets measured at fair value on a recurring basis		[3]	272	[3]
Liabilities:
Liabilities measured at fair value on a recurring basis	240	[3]		[3]
Interest Rate Swap Contracts [Member]
Liabilities:
Liabilities measured at fair value on a recurring basis	$ 11,000	[4]	$ 9,989	[4]

[1] The Company has a deferred compensation plan for the benefit of certain highly compensated employees. The assets consist of investments in money market and mutual funds, and company-owned life insurance contracts, all of which are valued based on Level 1 or Level 2 valuation inputs. The related deferred compensation plan liabilities are recorded at fair value, or the estimated amount needed to settle the liability, which the Company also considers to be based on a Level 2 input.

[2] The Company maintains a pension reinsurance asset to fund payments for one of its defined benefit pension plans. The reinsurance asset is carried at its cash surrender value, which the Company believes approximates its fair value. The Company considers the reinsurance contract to be valued based on a Level 2 input.

[3] The Company enters into foreign currency forward exchange contracts to hedge the effects of adverse fluctuations in foreign currency exchange rates. Valuation of the foreign currency forward contracts is based on observable foreign currency exchange rates in active markets, which the Company considers a Level 2 input.

[4] The Company has an interest rate swap contract which hedges the interest rate on its borrowings (see Note 7 - Debt). To determine the fair value of this over-the-counter financial instrument, the Company relies on a mark-to-market valuation prepared by a third-party broker. The valuation is based on observable interest rates from recently executed market transactions or broker quotes corroborated by other observable market data. Accordingly, the fair value of the swap is determined under a Level 2 input. The Company independently corroborates the reasonableness of the swap valuation prepared by the third-party broker through the use of an electronic quotation service.

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Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Earnings Per Share Reconciliation [Table Text Block]

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Numerator:
Net income used for calculating basic and diluted earnings per share	$	31,375	$	30,464	$	107,080	$	91,878
Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share		93,522		96,057		93,429		96,462
Common stock equivalents associated with stock-based compensation plans (1)		2,089		2,202		2,362		3,005
Shares used in the calculation of diluted earnings per share		95,611		98,259		95,791		99,467
Basic earnings per share	$	0.34	$	0.32	$	1.15	$	0.95
Diluted earnings per share	$	0.33	$	0.31	$	1.12	$	0.92

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Stock-Based Compensation (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	9 Months Ended		9 Months Ended								9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Stock Appreciation Rights (SARs) [Member]	Sep. 30, 2012 Restricted Stock Units (RSUs) [Member] Service Based Awards [Member]	Sep. 30, 2012 Restricted Stock Units (RSUs) [Member] Performance Shares [Member]	Sep. 30, 2012 Restricted Stock Units (RSUs) [Member]	Sep. 30, 2012 Common Stock Equivalents [Member]	Sep. 30, 2012 Employee Stock Option [Member]	Sep. 30, 2011 Employee Stock Option [Member]	Sep. 30, 2012 Long Term Incentive Plan 2003 [Member]	Sep. 30, 2012 Employee Stock Purchase Plan [Member]	Sep. 30, 2011 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)										6.3
Common Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.0005	$ 0.0005								$ 0.0005
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in Dollars)	$ 46,600,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	2 years 109 days		4 years	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years	4 years	4 years
Share Based Compensation Arrangement By Share Based Payment Award Expiry Period From Date Of Grant			7 years
Share-based Compensation Arrangement by Share-based Payment Award, Description						each RSU that vests entitles the awardee to one common share	each CSE entitles the holder to one common share
Base Fee Percentage							50.00%
Proceeds from Stock Options Exercised (in Dollars)								7,700,000	15,200,000
Share Based Compensation Arrangement By Employee Stock Purchase Plan Stock Purchases As Percentage Of Employee Compensation Maximum											10.00%
Share Based Compensation Arrangement By Share Based Payment Award Maximum Share Value Authorized For Purchase Under Employee Stock Purchase Plan (in Dollars)											23,750
Share Based Compensation Arrangemen tBy Share Based Paymen tAward Exercisable Price Percentage Of Closing Price Of Another Class Of Stock											95.00%
Employee Stock Purchase Plan Maximum Number Of Shares That May Be Purchased By Eligible Participants (in Shares)											1.3
Proceeds from Stock Plans (in Dollars)											$ 2,900,000	$ 2,600,000

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Segment Information (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Segment Reporting Information, by Segment [Table Text Block]

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

Three Months Ended September 30, 2012:	Research		Consulting		Events		Consolidated
Revenues	$	284,048	$	71,731	$	18,627	$	374,406
Gross contribution		193,540		24,380		4,511		222,431
Corporate and other expenses								(172,663	)
Operating income							$	49,768

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

Nine Months Ended September 30, 2012:	Research		Consulting		Events		Consolidated
Revenues	$	836,970	$	222,970	$	81,119	$	1,141,059
Gross contribution		571,547		79,886		32,867		684,300
Corporate and other expenses								(518,254	)
Operating income							$	166,046

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

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Business and Basis of Presentation

9 Months Ended

Sep. 30, 2012

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Note 1 — Business and Basis of Presentation

Business. Gartner, Inc. is a global information technology research and advisory company founded in 1979 with its headquarters in Stamford, Connecticut. Gartner delivers its products and services through three business segments: Research, Consulting, and Events. When used in these notes, the terms “Gartner,” “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 in the United States of America (“U.S. GAAP”), as defined in the Financial Accounting Standards Board (FASB) Accounting Standards Codification (“ASC”) Topic 270 for interim financial information and with the applicable instructions of the U.S. 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, 2011. The fiscal year of Gartner represents the twelve-month calendar period from January 1 through December 31. In the opinion of management, all normal recurring accruals and adjustments 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, 2012 may not be indicative of the results of operations for the remainder of 2012.

On January 1, 2012, the Company adopted Accounting Standards Update (“ASU”) No. 2011-05, Comprehensive Income (Topic 220-10): Presentation of Comprehensive Income, and a related amendment. Comprehensive income includes income and expense items from nonowner sources and consists of two separate components: net income as reported and other comprehensive income. ASU No. 2011-05 eliminates the option to report comprehensive income and its components in the statement of stockholders’ equity. Instead, the new rule optionally requires the presentation of net income and comprehensive income in one continuous statement, or in two separate, but consecutive statements. The Company has presented net income, other comprehensive income and its components, and comprehensive income in a new, separate statement called the Condensed Consolidated Statements of Comprehensive Income. While the Company’s presentation of comprehensive income has changed, there are no changes to the components or amounts that are recognized in net income or other comprehensive income under current accounting guidance. As a result, the adoption of this new rule did not impact the Company’s results of operations, cash flows, or financial position.

Principles of consolidation. The accompanying interim condensed consolidated financial statements include the accounts of the Company and its wholly- and 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 is 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. Such estimates are adjusted 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 such estimates and actual results could be material and would be reflected in the Company’s consolidated financial statements in future periods.

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Condensed Consolidated Balance Sheets (Parentheticals) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Preferred stock par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock par value (in Dollars per share)	$ 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	62,579,388	62,891,251

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Fair Value Disclosures

9 Months Ended

Sep. 30, 2012

Fair Value Disclosures [Text Block]

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 approximate their fair value due to their short-term nature. The Company’s financial instruments also include borrowings outstanding under its 2010 Credit Agreement, and at September 30, 2012, the Company had $200.0 million of floating rate debt outstanding under this arrangement, which is carried at amortized cost. The Company believes the carrying amount of the outstanding borrowings reasonably approximates fair value since the rate of interest on the borrowings reflect current market rates of interest for similar instruments with comparable maturities.

FASB ASC Topic 820 provides a framework for the measurement of fair value and a valuation hierarchy based upon the transparency of inputs used in the valuation of assets and liabilities. 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 measurements consist of quoted prices in active markets for identical assets or liabilities. Level 2 measurements include significant other observable inputs such as quoted prices for similar assets or liabilities in active markets; identical assets or liabilities in inactive markets; observable inputs such as interest rates and yield curves; and other market-corroborated inputs. Level 3 measurements include significant unobservable inputs, such as internally-created valuation models.

On January 1, 2012, the Company adopted ASU No. 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs, which updates FASB ASC Topic 820 with new requirements. These include: (1) a prohibition on grouping financial instruments for purposes of determining fair value, except when an entity manages market and credit risks on the basis of the entity’s net exposure to the group; (2) an extension of the prohibition against the use of a blockage factor to all fair value measurements (that prohibition currently applies only to financial instruments with quoted prices in active markets); and (3) a requirement that for recurring Level 3 fair value measurements, entities disclose additional quantitative information about unobservable inputs, a description of the valuation process used and qualitative details about the sensitivity of the measurements and their potential impact on operating results.

The Company has a limited number of assets and liabilities recorded in its Consolidated Balance Sheets that are remeasured to fair value on a recurring basis, and the Company does not currently utilize Level 3 valuation inputs to remeasure any of its assets or liabilities. In addition, the Company typically does not transfer assets or liabilities between different levels of the fair value hierarchy. As a result, the adoption of ASU No. 2011-04 did not result in any changes to the Company’s processes for determining fair values or require additional fair value disclosures.

The Company’s assets and liabilities remeasured to fair value are presented in the following table (in thousands):

Description:	Fair Value September 30, 2012		Fair Value December 31, 2011
Assets:
Deferred compensation plan assets (1)	$	27,000	$	25,050
Pension reinsurance asset (2)		14,350		12,980
Foreign currency forward contracts (3)		—		272
	$	41,350	$	38,302
Liabilities:
Deferred compensation plan liabilities (1)	$	30,290	$	28,100
Foreign currency forward contracts (3)		240		—
Interest rate swap contract (4)		11,000		9,989
	$	41,530	$	38,089

(1)	The Company has a deferred compensation plan for the benefit of certain highly compensated employees. The assets consist of investments in money market and mutual funds, and company-owned life insurance contracts, all of which are valued based on Level 1 or Level 2 valuation inputs. The related deferred compensation plan liabilities are recorded at fair value, or the estimated amount needed to settle the liability, which the Company also considers to be based on a Level 2 input.
(2)	The Company maintains a pension reinsurance asset to fund payments for one of its defined benefit pension plans. The reinsurance asset is carried at its cash surrender value, which the Company believes approximates its fair value. The Company considers the reinsurance contract to be valued based on a Level 2 input.
(3)	The Company enters into foreign currency forward exchange contracts to hedge the effects of adverse fluctuations in foreign currency exchange rates. Valuation of the foreign currency forward contracts is based on observable foreign currency exchange rates in active markets, which the Company considers a Level 2 input.
(4)	The Company has an interest rate swap contract which hedges the interest rate on its borrowings (see Note 7 — Debt). To determine the fair value of this over-the-counter financial instrument, the Company relies on a mark-to-market valuation prepared by a third-party broker. The valuation is based on observable interest rates from recently executed market transactions or broker quotes corroborated by other observable market data. Accordingly, the fair value of the swap is determined under a Level 2 input. The Company independently corroborates the reasonableness of the swap valuation prepared by the third-party broker through the use of an electronic quotation service.

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Document And Entity Information	9 Months Ended
	Sep. 30, 2012	Oct. 31, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	GARTNER INC
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		93,655,027
Amendment Flag	false
Entity Central Index Key	0000749251
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Sep. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3

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Employee Benefits

9 Months Ended

Sep. 30, 2012

Pension and Other Postretirement Benefits Disclosure [Text Block]

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, 2012 and 2011, and $1.8 million and $2.0 million for the nine months ended September 30, 2012 and 2011, respectively.

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Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues:
Research	$ 284,048	$ 255,979	$ 836,970	$ 749,429
Consulting	71,731	70,815	222,970	219,407
Events	18,627	18,990	81,119	72,058
Total revenues	374,406	345,784	1,141,059	1,040,894
Costs and expenses:
Cost of services and product development	151,143	142,696	458,853	428,473
Selling, general and administrative	164,888	148,461	492,627	442,891
Depreciation	6,301	6,638	18,378	19,143
Amortization of intangibles	1,362	739	3,029	5,788
Acquisition and integration charges	944		2,126
Total costs and expenses	324,638	298,534	975,013	896,295
Operating income	49,768	47,250	166,046	144,599
Interest expense, net	(2,209)	(2,282)	(6,557)	(7,863)
Other expense, net	(748)	(541)	(1,802)	(1,494)
Income before income taxes	46,811	44,427	157,687	135,242
Provision for income taxes	15,436	13,963	50,607	43,364
Net income	$ 31,375	$ 30,464	$ 107,080	$ 91,878
Income per common share:
Basic (in Dollars per share)	$ 0.34	$ 0.32	$ 1.15	$ 0.95
Diluted (in Dollars per share)	$ 0.33	$ 0.31	$ 1.12	$ 0.92
Weighted average shares outstanding:
Basic (in Shares)	93,522	96,057	93,429	96,462
Diluted (in Shares)	95,611	98,259	95,791	99,467

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Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2012

Goodwill and Intangible Assets Disclosure [Text Block]

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.

The following table presents changes to the carrying amount of goodwill by reporting unit during the nine months ended September 30, 2012 (in thousands):

	Research		Consulting		Events		Total
Balance, December 31, 2011	$	366,980	$	99,677	$	41,893	$	508,550
Addition due to acquisition (1)		7,455		—		—		7,455
Foreign currency translation adjustments		2,488		683		24		3,195
Balance, September 30, 2012 (2)	$	376,923	$	100,360	$	41,917	$	519,200

(1)	The Company acquired Ideas International in the second quarter of 2012 and recorded $7.5 million of goodwill. All of the recorded goodwill resulting from the acquisition has been included in the Research segment. See Note 2—Acquisition above for additional information.
(2)	The Company does not have any accumulated goodwill impairment losses.

Amortizable Intangible Assets

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

September 30, 2012	Trade Name			Customer Relationships			Content			Software			Total
Gross cost, December 31, 2011	$	5,758		$	7,210		$	—		$	—		$	12,968
Additions due to acquisition (1)		240			3,170			3,170			1,955			8,535
Foreign currency translation adjustments		18			207			234			134			593
Gross cost		6,016			10,587			3,404			2,089			22,096
Accumulated amortization (2)		(3,210	)		(5,238	)		(284	)		(222	)		(8,954	)
Balance, September 30, 2012	$	2,806		$	5,349		$	3,120		$	1,867		$	13,142

December 31, 2011	Trade Name			Customer Relationships			Content		Software		Total
Gross cost, December 31, 2010	$	5,758		$	7,210			—	—	$	12,968
Foreign currency translation adjustments		—			—			—	—		—
Gross cost		5,758			7,210			—	—		12,968
Accumulated amortization (2)		(2,303	)		(3,605	)		—	—		(5,908	)
Balance, December 31, 2011	$	3,455		$	3,605			—	—	$	7,060

(1)	The Company acquired Ideas International in the second quarter of 2012 and recorded a total of $8.5 million of amortizable intangible assets. See Note 2—Acquisition above for additional information.
(2)	Intangible assets are being amortized against earnings over the following periods: Trade name—2 to 5 years; Customer relationships—4 years; Content—4 years; Software—3 years.

Aggregate amortization expense related to intangible assets was $1.4 million and $0.7 million for the three months ended September 30, 2012 and 2011, respectively, and $3.0 million and $5.8 million for the nine months ended September 30, 2012 and 2011, respectively.

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

2012 (remaining three months)	$	1,370
2013		5,475
2014		3,600
2015		1,995
2016		702
	$	13,142

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Segment Information

9 Months Ended

Sep. 30, 2012

Segment Reporting Disclosure [Text Block]

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, 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, amortization of intangibles, and acquisition and integration 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 intersegment 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, 2012:	Research		Consulting		Events		Consolidated
Revenues	$	284,048	$	71,731	$	18,627	$	374,406
Gross contribution		193,540		24,380		4,511		222,431
Corporate and other expenses								(172,663	)
Operating income							$	49,768

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

Nine Months Ended September 30, 2012:	Research		Consulting		Events		Consolidated
Revenues	$	836,970	$	222,970	$	81,119	$	1,141,059
Gross contribution		571,547		79,886		32,867		684,300
Corporate and other expenses								(518,254	)
Operating income							$	166,046

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

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

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:	2012		2011		2012		2011
Stock appreciation rights (SARs)	$	2.4	$	1.0	$	5.0	$	3.4
Common stock equivalents (CSEs)		0.1		0.1		0.4		0.4
Restricted stock units (RSUs)		6.7		6.7		22.6		21.0
Total expense (1)	$	9.2	$	7.8	$	28.0	$	24.8

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

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

	Three Months Ended September 30,				Nine Months Ended September 30,
Amount recorded in:	2012		2011		2012		2011
Cost of services and product development	$	3.5	$	3.3	$	12.0	$	11.3
Selling, general and administrative		5.7		4.5		16.0		13.5
Total expense (1)	$	9.2	$	7.8	$	28.0	$	24.8

Schedule of Share-based Compensation, Stock Appreciation Rights Award Activity [Table Text Block]

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)
	2012			2011
Expected dividend yield (2)		0	%		0	%
Expected stock price volatility (3)		40	%		38	%
Risk-free interest rate (4)		0.8	%		2.2	%
Expected life in years (5)		4.6			4.8

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes the changes in stock options outstanding during the nine months ended September 30, 2012:

	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, 2011		1.2		$	10.93		1.47 years	$	27.7
Exercised (1)		(0.8	)		10.80		n/a		n/a
Vested and outstanding at September 30, 2012		0.4		$	11.13		1.30 years	$	15.6
n/a=not applicable

Stock Appreciation Rights (SARs) [Member]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

The following table summarizes changes in SARs outstanding during the nine months ended September 30, 2012:

	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, 2011		2.5		$	20.39	$	7.66		4.00 years
Granted		0.4			37.81		12.99		6.36 years
Forfeited		—			—		—		n/a
Exercised		(0.8	)		18.60		6.86		n/a
Outstanding at September 30, 2012 (1), (2)		2.1		$	24.27	$	8.94		4.23 years
Vested and exercisable at September 30, 2012 (2)		0.9		$	18.50	$	7.08		3.17 years

Restricted Stock Units (RSUs) [Member]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

The following table summarizes the changes in RSUs outstanding during the nine months ended September 30, 2012:

	Restricted Stock Units (RSUs) (in millions)			Per Share Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011		3.1		$	21.53
Granted (1)		0.7			37.97
Vested and released		(1.3	)		19.51
Forfeited		—			—
Outstanding at September 30, 2012 (2), (3)		2.5		$	27.93

Common Stock Equivalents [Member]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

The following table summarizes the changes in CSEs outstanding during the nine months ended September 30, 2012:

	Common Stock Equivalents (CSEs)			Per Share Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011		97,268		$	15.93
Granted		8,631			44.63
Converted to common shares		(6,173	)		44.60
Outstanding at September 30, 2012		99,726		$	16.64

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies Disclosure [Text Block]

Note 13 — Commitments and Contingencies

Contingencies

The Company is 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, 2012, the Company did not have any indemnification agreements that could require material payments.

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Income Taxes

9 Months Ended

Sep. 30, 2012

Income Tax Disclosure [Text Block]

Note 9 — Income Taxes

The provision for income taxes was $15.4 million for the three months ended September 30, 2012 compared to $14.0 million in the prior year quarter. The effective tax rate was 33.0% for the three months ended September 30, 2012 and 31.4% for the same period in 2011. The increase in the effective tax rate was primarily due to a change in the estimated annual mix of pre-tax income by jurisdiction. The provision for income taxes was $50.6 million for the nine months ended September 30, 2012 compared to $43.4 million for the same period in 2011. The effective tax rate was 32.1% for both the nine months ended September 30, 2012 and 2011.

As of September 30, 2012 and December 31, 2011, the Company had gross unrecognized tax benefits of $20.0 million and $18.3 million, respectively. It is reasonably possible that the gross unrecognized tax benefits will decrease by $4.8 million within the next 12 months, primarily due to settlements of outstanding audits and the expiration of the relevant statutes of limitation. As of September 30, 2012 and December 31, 2011, the Company had Other liabilities of $15.2 million and $15.4 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. The Company disagrees with certain of the proposed adjustments and is disputing this matter through applicable IRS and judicial procedures, as appropriate. Separately, in the second quarter of 2011 the IRS commenced an audit of the Company’s 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.

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Equity (Detail) - Share Repurchase Activity (Parentheticals) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Average purchase price for shares	$ 48.27	$ 34.58	$ 39.51	$ 36.33

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Debt

9 Months Ended

Sep. 30, 2012

Debt Disclosure [Text Block]

Note 7 — Debt

Credit Agreement

The Company has a credit arrangement that provides for a five-year, $200.0 million term loan and a $400.0 million revolving credit facility that it entered into in December 2010 (the “2010 Credit Agreement”). 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, 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 as of September 30, 2012 and December 31, 2011.

The following table provides information regarding the Company’s borrowings under the 2010 Credit Agreement:

Description:	Amount Outstanding September 30, 2012 (In thousands)		Contractual Annualized Interest Rate September 30, 2012		Amount Outstanding December 31, 2011 (In thousands)
Term loan (1)	$	157,500	1.86	%	$	180,000
Revolver (1), (2)		42,500	1.86	%		20,000
Total	$	200,000			$	200,000

(1)

The term and revolver contractual rates consisted of a 0.36%, three-month floating Eurodollar base rate plus a margin of 1.50%. However, the Company has an interest rate swap contract which converts the floating Eurodollar base rates to a fixed base rate on $200.0 million of borrowings (see below). As a result, the effective annual interest rate on the total debt outstanding under the 2010 Credit Facility, including the effect of the swap, was 3.76% as of September 30, 2012 and December 31, 2011.

(2)

The Company had $354.2 million of additional borrowing capacity on the revolver (not including the expansion feature) as of September 30, 2012.

Interest Rate Swap Hedge

The Company has a $200.0 million notional fixed-for-floating interest rate swap contract which it designates as a 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 floating Eurodollar base rate on $200.0 million of notional borrowings. The Company entered into this swap contract in December 2010 and it matures in September 2015.

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 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. There was no ineffective portion of the hedge at September 30, 2012 or December 31, 2011. The interest rate swap had a negative fair value to the Company of $11.0 million and $9.9 million at September 30, 2012 and December 31, 2011, respectively, which is deferred and classified in OCI, net of tax effect.

Letters of Credit

The Company had $10.1 million of letters of credit and related guarantees outstanding at September 30, 2012. The Company enters into these instruments in the ordinary course of business to facilitate transactions with customers and others.

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Equity

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Note Disclosure [Text Block]

Note 8 — Equity

Share Repurchase Program

The Company has a $500.0 million share repurchase program, of which $231.0 million remained available for share repurchases as of September 30, 2012. Repurchases 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 market 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 may be funded from operating cash flow or borrowings.

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Number of shares repurchased (1)		95,833		1,543,069		2,260,093		3,886,521
Cost of repurchased shares (in thousands)	$	4,626	$	53,354	$	89,300	$	141,214

(1) The average purchase price for the shares was $48.27 and $39.51 for the three and nine months ended September 30, 2012 respectively, and $34.58 and $36.33 for the three and nine months ended September 30, 2011, respectively.

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Derivatives and Hedging

9 Months Ended

Sep. 30, 2012

Derivative Instruments and Hedging Activities Disclosure [Text Block]

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, including 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, 2012
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	$	(11,000	)	Other liabilities	$	(6,617	)
Foreign currency forwards (2)		30		40,530		(240	)	Accrued liabilities		—
Total		31	$	240,530	$	(11,240	)		$	(6,617	)

December 31, 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	$	(9,891	)	Other liabilities	$	(5,934	)
Interest rate swaps (3)		2		30,750		(98	)	Other liabilities		—
Foreign currency forwards (2)		60		99,585		272		Other current assets		—
Total		63	$	330,335	$	(9,717	)		$	(5,934	)

(1)	The Company has designated 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 deferred and are recorded in OCI, net of tax effect.
(2)	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 currency. 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 expense, net since the Company does not designate these contracts as hedges for accounting purposes. Substantially all of the outstanding contracts at September 30, 2012 matured by the end of October 2012.
(3)	These swaps matured in January 2012. Changes in the fair value of these swaps were recognized in earnings.
(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 contained credit-risk guarantees.

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:	2012		2011			2012			2011
Interest expense, net (1)	$	907	$	1,022		$	2,657		$	3,100
Other expense (income), net (2)		36		(1,976	)		(563	)		1,794
Total expense (income), net	$	943	$	(954	)	$	2,094		$	4,894

(1)	Consists of interest expense from interest rate swap contracts.
(2)	Consists of realized and unrealized gains and losses on foreign currency forward contracts.

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Fair Value Disclosures (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012
Borrowings Fair Value Disclosure	$ 200.0

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Employee Benefits (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Defined Benefit Plan, Net Periodic Benefit Cost	$ 0.6	$ 0.6	$ 1.8	$ 2.0

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Derivatives and Hedging (Detail) - Derivative Gains And Losses That Have Been Recognized In Condensed Consolidated Statements Of Operations (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
DerivativeInstruments Gain Loss Recognized In Income Net	$ 943		$ (954)		$ 2,094		$ 4,894
Interest Expense [Member]
DerivativeInstruments Gain Loss Recognized In Income Net	907	[1]	1,022	[1]	2,657	[1]	3,100	[1]
Other Income And Expense [Member]
DerivativeInstruments Gain Loss Recognized In Income Net	$ 36	[2]	$ (1,976)	[2]	$ (563)	[2]	$ 1,794	[2]

[1] Consists of interest expense from interest rate swap contracts.

[2] Consists of realized and unrealized gains and losses on foreign currency forward contracts.

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Earnings per Share (Detail) - Calculations Of Basic And Diluted Earnings Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Numerator:
Net income used for calculating basic and diluted earnings per share (in Dollars)	$ 31,375		$ 30,464		$ 107,080		$ 91,878
Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share	93,522		96,057		93,429		96,462
Common stock equivalents associated with stock-based compensation plans (1)	2,089	[1]	2,202	[1]	2,362	[1]	3,005	[1]
Shares used in the calculation of diluted earnings per share	95,611		98,259		95,791		99,467
Basic earnings per share (in Dollars per share)	$ 0.34		$ 0.32		$ 1.15		$ 0.95
Diluted earnings per share (in Dollars per share)	$ 0.33		$ 0.31		$ 1.12		$ 0.92

[1] Certain common stock equivalents were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive. These amounted to 0.4 million and 1.6 million for the three months ended September 30, 2012 and 2011, respectively, and 0.7 million and 0.3 million for the nine months ended September 30, 2012 and 2011, respectively.

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Goodwill and Intangible Assets (Detail) - Changes to Carrying Amount of Goodwill by Reporting Unit (Parentheticals) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Addition due to acquisition	$ 7,455	[1]
Research [Member]
Addition due to acquisition	7,455	[1]
Ideas International Limited [Member]
Addition due to acquisition	$ 7,500

[1] The Company acquired Ideas International in the second quarter of 2012 and recorded $7.5 million of goodwill. All of the recorded goodwill resulting from the acquisition has been included in the Research segment. See Note 2-Acquisition above for additional information.

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Acquisition (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Purchase Price Allocation [Table Text Block]

The following table summarizes the preliminary allocation of the purchase price to the fair value of the assets acquired and liabilities assumed in the acquisition (dollars in thousands):

Assets:
Cash	$	8,502
Fees receivable		1,310
Prepaid expenses and other current assets		560
Goodwill and amortizable intangible assets (1)		15,990
Total assets	$	26,362
Liabilities:
Accounts payable and accrued liabilities	$	2,203
Deferred revenues (2)		5,321
Total liabilities	$	7,524

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Debt (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Debt [Table Text Block]

The following table provides information regarding the Company’s borrowings under the 2010 Credit Agreement:

Description:	Amount Outstanding September 30, 2012 (In thousands)		Contractual Annualized Interest Rate September 30, 2012		Amount Outstanding December 31, 2011 (In thousands)
Term loan (1)	$	157,500	1.86	%	$	180,000
Revolver (1), (2)		42,500	1.86	%		20,000
Total	$	200,000			$	200,000

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Goodwill and Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Goodwill Impairment Test Number Of Reporting Units	3		3
Amortization of Intangible Assets	$ 1,362	$ 739	$ 3,029	$ 5,788

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Stock-Based Compensation (Detail) - Summary Of Changes In SARs Outstanding (Parentheticals) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Intrinsic value, SARs outstanding	45.4
Intrinsic values, SARs vested and exercisable	25.5
Stock Appreciation Rights (SARs) [Member] | Unvested [Member]
Unvested SARs (in Shares)	1,200,000
Stock Appreciation Rights (SARs) [Member]
Unvested SARs (in Shares)	2,100,000	[1],[2]	2,500,000

[1] As of September 30, 2012, 1.2 million of SARs outstanding were unvested. The Company expects that substantially all of these unvested awards will vest in future periods.

[2] As of September 30, 2012, total SARs outstanding had an intrinsic value of $45.4 million. SARs vested and exercisable had an intrinsic value of $25.5 million.

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Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 31,375	$ 30,464	$ 107,080	$ 91,878
Other comprehensive income (loss):
Foreign currency translation adjustments	5,383	(5,352)	3,720	(3,828)
Unrealized loss on interest rate swap hedge	(470)	(5,283)	(1,139)	(8,170)
Amortization of pension unrealized actuarial gain	(51)	(33)	(157)	(100)
	4,862	(10,668)	2,424	(12,098)
Tax effect of comprehensive income items	188	2,113	456	3,268
Other comprehensive income (loss), net of tax effect	5,050	(8,555)	2,880	(8,830)
Comprehensive income	$ 36,425	$ 21,909	$ 109,960	$ 83,048

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Stock-Based Compensation

9 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

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, 2012, the Company had 6.3 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 then recognized as expense 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. Currently 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-based 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-based 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-based 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:	2012		2011		2012		2011
Stock appreciation rights (SARs)	$	2.4	$	1.0	$	5.0	$	3.4
Common stock equivalents (CSEs)		0.1		0.1		0.4		0.4
Restricted stock units (RSUs)		6.7		6.7		22.6		21.0
Total expense (1)	$	9.2	$	7.8	$	28.0	$	24.8

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

	Three Months Ended September 30,				Nine Months Ended September 30,
Amount recorded in:	2012		2011		2012		2011
Cost of services and product development	$	3.5	$	3.3	$	12.0	$	11.3
Selling, general and administrative		5.7		4.5		16.0		13.5
Total expense (1)	$	9.2	$	7.8	$	28.0	$	24.8

(1) The three months ended September 30, 2012 and 2011 included charges of $1.5 million and $0.2 million, respectively, related to awards to retirement-eligible employees, since awards granted to retirement-eligible employees vest on an accelerated basis. The nine months ended September 30, 2012 and 2011 included charges of $4.7 million and $3.0 million, respectively, for retirement-eligible employees.

As of September 30, 2012, the Company had $46.6 million of total unrecognized stock-based compensation cost, which is expected to be expensed over the remaining weighted-average service period of approximately 2.3 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) permit the holder to participate in the appreciation of the Common Stock. SARs are 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. At the present time, 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 as reported on the New York Stock Exchange 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 during the nine months ended September 30, 2012:

	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, 2011		2.5		$	20.39	$	7.66		4.00 years
Granted		0.4			37.81		12.99		6.36 years
Forfeited		—			—		—		n/a
Exercised		(0.8	)		18.60		6.86		n/a
Outstanding at September 30, 2012 (1), (2)		2.1		$	24.27	$	8.94		4.23 years
Vested and exercisable at September 30, 2012 (2)		0.9		$	18.50	$	7.08		3.17 years

n/a=not applicable

(1)	As of September 30, 2012, 1.2 million of SARs outstanding were unvested. The Company expects that substantially all of these unvested awards will vest in future periods.
(2)	As of September 30, 2012, total SARs outstanding had an intrinsic value of $45.4 million. SARs vested and exercisable had an intrinsic value of $25.5 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)
	2012			2011
Expected dividend yield (2)		0	%		0	%
Expected stock price volatility (3)		40	%		38	%
Risk-free interest rate (4)		0.8	%		2.2	%
Expected life in years (5)		4.6			4.8

(1)	The Company did not make any SARs grants during the three months ended September 30, 2012 and 2011.
(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 the Company’s 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). Beginning January 1, 2012, the expected life has been calculated based on the Company’s historical exercise data. Previously, the Company determined the expected life based on a simplified calculation permitted by SEC SAB No. 107 and SAB No. 110 since the necessary historical exercise data was not available. The change in methodology had an insignificant impact on the calculation of the expected life.

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 of the rights of a Gartner stockholder, including voting rights and the right to receive dividends and distributions, 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, 2012:

	Restricted Stock Units (RSUs) (in millions)			Per Share Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011		3.1		$	21.53
Granted (1)		0.7			37.97
Vested and released		(1.3	)		19.51
Forfeited		—			—
Outstanding at September 30, 2012 (2), (3)		2.5		$	27.93

(1)	The 0.7 million RSUs granted in 2012 consisted of 0.3 million 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 awarded to executives represents the target amount of the award for the year, which is tied to an increase in the Company’s subscription-based Research contract value (“CV”) for 2012. The final number of performance-based RSUs that will be granted to executives in 2012 could range from 0% to 200% of the target amount, depending on the actual increase in CV for the year as measured on December 31, 2012. If the specified minimum level of achievement is not met, the performance-based RSUs will be forfeited in their entirety, and any compensation expense previously 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, 2012:

	Common Stock Equivalents (CSEs)			Per Share Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011		97,268		$	15.93
Granted		8,631			44.63
Converted to common shares		(6,173	)		44.60
Outstanding at September 30, 2012		99,726		$	16.64

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 $7.7 million and $15.2 million in cash from option exercises in the nine months ended September 30, 2012 and 2011, respectively.

The following table summarizes the changes in stock options outstanding during the nine months ended September 30, 2012:

	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, 2011		1.2		$	10.93		1.47 years	$	27.7
Exercised (1)		(0.8	)		10.80		n/a		n/a
Vested and outstanding at September 30, 2012		0.4		$	11.13		1.30 years	$	15.6
n/a=not applicable

(1) Options exercised during the nine months ended September 30, 2012 had an intrinsic value of $22.1 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, 2012, the Company had 1.3 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 $2.9 million and $2.6 million in cash from share purchases under the ESP Plan in the nine months ended September 30, 2012 and 2011, respectively.

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Equity (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2012
Stock Repurchase Program, Authorized Amount	$ 500.0
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 231.0

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Equity (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Treasury Stock by Class [Table Text Block]

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Number of shares repurchased (1)		95,833		1,543,069		2,260,093		3,886,521
Cost of repurchased shares (in thousands)	$	4,626	$	53,354	$	89,300	$	141,214

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Stock-Based Compensation (Detail) - Stock-Based Compensation Expense Recognized In Consolidated Statements Of Operations (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Total expense (1)	$ 9,200,000	[1]	$ 7,800,000	[1]	$ 28,021,000	[1]	$ 24,750,000	[1]
Retirement Eligible Employees Equity Award [Member]
Total expense (1)	1,500,000		200,000		4,700,000		3,000,000
Cost of Sales [Member]
Stock-based compensation expense	3,500,000		3,300,000		12,000,000		11,300,000
Selling, General and Administrative Expenses [Member]
Stock-based compensation expense	$ 5,700,000		$ 4,500,000		$ 16,000,000		$ 13,500,000

[1] The three months ended September 30, 2012 and 2011 included charges of $1.5 million and $0.2 million, respectively, related to awards to retirement-eligible employees, since awards granted to retirement-eligible employees vest on an accelerated basis. The nine months ended September 30, 2012 and 2011 included charges of $4.7 million and $3.0 million, respectively, for retirement-eligible employees.

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Accounting Policies, by Policy (Policies)

9 Months Ended

Sep. 30, 2012

Consolidation, Policy [Policy Text Block]

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

Use of Estimates, Policy [Policy Text Block]

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 is 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. Such estimates are adjusted 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 such estimates and actual results could be material and would be reflected in the Company’s consolidated financial statements in future periods.