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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2013	Aug. 02, 2013
Document Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Entity Registrant Name	FORRESTER RESEARCH, INC.
Entity Central Index Key	0001023313
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		20,203,000

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 55,083	$ 98,810
Marketable investments (Note 2)	123,550	134,876
Accounts receivable, net	39,785	74,623
Deferred commissions	8,850	9,410
Prepaid expenses and other current assets	16,593	18,846
Total current assets	243,861	336,565
Long-term marketable investments (Note 2)	8,920	8,970
Property and equipment, net	42,478	46,300
Goodwill	78,480	78,954
Intangible assets, net	6,767	7,920
Other assets	11,244	9,123
Total assets	391,750	487,832
Current Liabilities:
Accounts payable	1,122	772
Accrued expenses and other current liabilities	26,869	30,078
Deferred revenue	136,803	150,479
Total current liabilities	164,794	181,329
Non-current liabilities	9,233	9,433
Total liabilities	174,027	190,762
Commitments
Stockholders' Equity (Note 6):
Preferred stock, $.01 par value Authorized - 500 shares, issued and outstanding - none
Common stock, $.01 par value Authorized - 125,000 shares Issued - 20,252 and 31,451 as of June 30, 2013 and December 31, 2012, respectively Outstanding - 20,241 and 22,293 as of June 30, 2013 and December 31, 2012, respectively	203	315
Additional paid-in capital	99,914	389,362
Retained earnings	119,197	117,648
Treasury stock - 11 and 9,158 as of June 30, 2013 and December 31, 2012, respectively, at cost	(424)	(210,843)
Accumulated other comprehensive income (loss)	(1,167)	588
Total stockholders' equity	217,723	297,070
Total liabilities and stockholders' equity	$ 391,750	$ 487,832

Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Jun. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	500	500
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	125,000	125,000
Common stock, shares issued	20,252	31,451
Common stock, shares outstanding	20,241	22,293
Treasury stock, shares	11	9,158

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues:
Research services	$ 50,512	$ 51,072	$ 100,890	$ 100,832
Advisory services and other	27,652	28,021	48,773	48,521
Total revenues	78,164	79,093	149,663	149,353
Operating expenses:
Cost of services and fulfillment	30,786	29,828	57,813	56,766
Selling and marketing	26,789	26,267	53,846	51,400
General and administrative	8,420	8,645	17,907	18,256
Depreciation	2,302	2,255	4,662	4,248
Amortization of intangible assets	554	586	1,113	1,200
Reorganization costs	314	51	1,905	1,394
Total operating expenses	69,165	67,632	137,246	133,264
Income from operations	8,999	11,461	12,417	16,089
Other income, net	255	130	631	539
Gains (losses) on investments, net	(51)	84	(102)	143
Income before income taxes	9,203	11,675	12,946	16,771
Income tax provision	3,581	3,906	4,983	5,821
Net income	$ 5,622	$ 7,769	$ 7,963	$ 10,950
Basic income per common share	$ 0.26	$ 0.34	$ 0.37	$ 0.48
Diluted income per common share	$ 0.26	$ 0.34	$ 0.36	$ 0.47
Basic weighted average common shares outstanding	21,256	22,583	21,781	22,660
Diluted weighted average common shares outstanding	21,747	23,023	22,202	23,098
Cash dividends declared per common share	$ 0.15	$ 0.14	$ 0.30	$ 0.28

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 5,622	$ 7,769	$ 7,963	$ 10,950
Other comprehensive income (loss), net of taxes:
Cumulative translation adjustments	16	(1,013)	(1,339)	(332)
Changes in market value of investments:
Unrealized gain (loss), net of taxes (benefits) of $(238) and $26 for the three months ended June 30, 2013 and 2012, and $(241) and $166 for the six months ended June 30, 2013 and 2012	(394)	17	(440)	333
Less: reclassification adjustment for net gains realized in net income, net of taxes of $15 and $2 for the three months ended June 30, 2013 and 2012, and $15 and $10 for the six months ended June 30, 2013 and 2012	24	(1)	24	(14)
Net change in market value of investments	(370)	16	(416)	319
Other comprehensive income (loss)	(354)	(997)	(1,755)	(13)
Comprehensive income	$ 5,268	$ 6,772	$ 6,208	$ 10,937

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]
Taxes (benefits) on unrealized gain	$ (238)	$ 26	$ (241)	$ 166
Taxes on reclassification adjustment	$ 15	$ 2	$ 15	$ 10

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income	$ 7,963	$ 10,950
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	4,662	4,248
Amortization of intangible assets	1,113	1,200
Net (gains) losses from investments	102	(143)
Deferred income taxes	(5,376)	(4,291)
Stock-based compensation	2,728	2,512
Amortization of premium on investments	1,265	1,460
Foreign currency (gains) losses	(34)	239
Changes in assets and liabilities, net of acquisitions
Accounts receivable	34,564	33,661
Deferred commissions	560	2,647
Prepaid expenses and other current assets	4,619	234
Accounts payable	343	(244)
Accrued expenses and other liabilities	(2,323)	(130)
Deferred revenue	(12,955)	(12,944)
Net cash provided by operating activities	37,231	39,399
Cash flows from investing activities:
Purchases of property and equipment	(1,267)	(3,245)
Purchases of marketable investments	(39,636)	(65,713)
Proceeds from sales and maturities of marketable investments	49,143	52,845
Change in restricted cash		946
Other investing activity	248	124
Net cash provided by (used in) investing activities	8,488	(15,043)
Cash flows from financing activities:
Dividends paid on common stock	(6,414)	(6,356)
Repurchases of common stock	(92,083)	(17,052)
Proceeds from issuance of common stock under employee equity incentive plans	10,513	6,634
Excess tax benefits from stock-based compensation	638	332
Payment of deferred acquisition consideration	(900)	(739)
Net cash used in financing activities	(88,246)	(17,181)
Effect of exchange rate changes on cash and cash equivalents	(1,200)	(559)
Net increase (decrease) in cash and cash equivalents	(43,727)	6,616
Cash and cash equivalents, beginning of period	98,810	81,047
Cash and cash equivalents, end of period	$ 55,083	$ 87,663

Interim Consolidated Financial Statements	6 Months Ended
Interim Consolidated Financial Statements	Jun. 30, 2013
Quarterly Financial Information Disclosure [Abstract]
Interim Consolidated Financial Statements	Note 1 — Interim Consolidated Financial Statements Basis of Presentation The accompanying unaudited interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for reporting on Form 10-Q. Accordingly, certain information and footnote disclosures required for complete financial statements are not included herein. The year-end balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America. It is recommended that these financial statements be read in conjunction with the consolidated financial statements and related notes that appear in the Forrester Research, Inc. (“Forrester”) Annual Report on Form 10-K for the year ended December 31, 2012. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the financial position, results of operations, and cash flows as of the dates and for the periods presented have been included. The results of operations for the three and six months ended June 30, 2013 may not be indicative of the results for the year ending December 31, 2013, or any other period. Fair Value Measurements The carrying amounts reflected in the Consolidated Balance Sheets for cash and cash equivalents, accounts receivable, accounts payable, and accrued expenses approximate fair value due to their short-term maturities. See Note 2 – Marketable Investments for the fair value of the Company’s marketable investments.

Marketable Investments

6 Months Ended

Jun. 30, 2013

Investments Debt And Equity Securities [Abstract]

Marketable Investments

Note 2 — Marketable Investments

The following table summarizes the Company’s marketable investments (in thousands):


			Gross		Gross
	Amortized		Unrealized		Unrealized			Market
	Cost		Gains		Losses			Value
June 30, 2013
Available-for-sale securities
State and municipal obligations	$	18,478	$	16	$	(4	)	$	18,490
Federal agency and corporate obligations		105,300		169		(409	)		105,060

Total short-term available-for-sale securities		123,778		185		(413	)		123,550
ARS, long-term		11,000		—		(2,080	)		8,920

Total available-for-sale securities	$	134,778	$	185	$	(2,493	)	$	132,470


			Gross		Gross
	Amortized		Unrealized		Unrealized			Market
	Cost		Gains		Losses			Value
December 31, 2012
Available-for-sale securities
State and municipal obligations	$	18,859	$	27	$	(14	)	$	18,872
Federal agency and corporate obligations		115,653		380		(29	)		116,004

Total short-term available-for-sale securities		134,512		407		(43	)		134,876
ARS, long-term		11,000		—		(2,030	)		8,970

Total available-for-sale securities	$	145,512	$	407	$	(2,073	)	$	143,846

Realized gains and losses on securities are included in earnings and are determined using the specific identification method. Realized gains or losses on the sale of the Company’s federal agency, state, municipal and corporate obligations were not material in the three and six months ended June 30, 2013 or 2012.

The following table summarizes the maturity periods of the marketable securities in the Company’s portfolio as of June 30, 2013. In February 2008, certain auction rate securities (“ARS”) that Forrester held experienced failed auctions that limited the liquidity of these securities. These auction failures have continued and based on current market conditions, it is likely that auction failures will continue. The following table reflects the ARS at their contractual maturity dates of between 2024 and 2034 (in thousands).


	FY 2013		FY2014		FY2015		Thereafter		Total
State and municipal obligations	$	6,309	$	10,092	$	2,089	$	—	$	18,490
Federal agency and corporate obligations		20,245		32,273		36,640		15,902		105,060
ARS		—		—		—		8,920		8,920

Total	$	26,554	$	42,365	$	38,729	$	24,822	$	132,470

The following table shows the gross unrealized losses and market value of Forrester’s available-for-sale securities with unrealized losses that are not deemed to be other-than-temporary, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands):


	As of June 30, 2013
	Less Than 12 Months				12 Months or Greater
	Market		Unrealized		Market		Unrealized
	Value		Losses		Value		Losses
State and municipal bonds	$	4,593	$	4	$	—	$	—
Federal agency and corporate obligations		57,448		409		—		—
ARS		—		—		8,920		2,080

Total	$	62,041	$	413	$	8,920	$	2,080


	As of December 31, 2012
	Less Than 12 Months				12 Months or Greater
	Market		Unrealized		Market		Unrealized
	Value		Losses		Value		Losses
State and municipal bonds	$	9,430	$	14	$	—	$	—
Federal agency and corporate obligations		17,716		29		—		—
ARS		—		—		8,970		2,030

Total	$	27,146	$	43	$	8,970	$	2,030

Fair Value

The Company measures certain financial assets at fair value on a recurring basis, including cash equivalents, available-for-sale securities and trading securities. The fair values of these financial assets have been classified as Level 1, 2 or 3 within the fair value hierarchy as described in the accounting standards for fair value measurements.

Level 1 — Fair value based on quoted prices in active markets for identical assets or liabilities.

Level 2 — Fair value based on inputs other than Level 1 inputs that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3 — Fair value based on unobservable inputs that are supported by little or no market activity and such inputs are significant to the fair value of the assets or liabilities.

The following table represents the Company’s fair value hierarchy for its financial assets (cash equivalents and investments) measured at fair value on a recurring basis as of June 30, 2013 and December 31, 2012 (in thousands):


	As of June 30, 2013
	Level 1		Level 2		Level 3		Total
Money market funds (1)	$	964	$	—	$	—	$	964
State and municipal obligations		—		18,490		—		18,490
Federal agency and corporate obligations (2)		—		111,209		—		111,209
ARS		—		—		8,920		8,920

Total	$	964	$	129,699	$	8,920	$	139,583


	As of December 31, 2012
	Level 1		Level 2		Level 3		Total
Money market funds (1)	$	815	$	—	$	—	$	815
State and municipal obligations		—		18,872		—		18,872
Federal agency and corporate obligations (2)		—		148,117		—		148,117
ARS		—		—		8,970		8,970

Total	$	815	$	166,989	$	8,970	$	176,774

(1)	Included in cash and cash equivalents.

(2)	$6.1 million and $32.1 million are included in cash and cash equivalents at June 30, 2013 and December 31, 2012, respectively, as original maturities at the time of purchase were 90 days or less.

Level 2 assets consist of the Company’s entire portfolio of federal, state, municipal and corporate bonds, excluding those municipal bonds described below with an auction reset feature. Level 2 assets have been initially valued at the transaction price and subsequently valued, at the end of each reporting period, typically utilizing third party pricing services or other market observable data. The pricing services utilize industry standard valuation methods, including both income and market based approaches and observable market inputs to determine value. These observable market inputs include reportable trades, benchmark yields, credit spreads, broker/dealer quotes, bids, offers, current spot rates and other industry and economic events.

Level 3 assets at June 30, 2013 and December 31, 2012 consist entirely of municipal bonds with an auction reset feature (ARS). Prior to 2008, the fair value of the ARS investments approximated par value due to the frequent resets through the auction process. While the Company continues to receive interest income on its ARS investments at each interest reset date (which occurs at either seven or 35 day intervals for each security), these investments trade infrequently and therefore do not have a readily determinable market value. Interest rates on the securities ranged from 0.1% to 0.4% and 0.1% to 0.5% during the six months ended June 30, 2013 and 2012, respectively. The Company values the ARS using a discounted cash flow model that includes unobservable inputs including estimates of future interest rates, discount rates and expected holding periods of the securities, which is considered a Level 3 valuation. Unobservable inputs included in the valuation as of June 30, 2013 include a weighted average interest rate of 1.7%, a weighted average discount rate of 5.3%, and a weighted average holding period of 8.7 years. The valuation resulted in an unrealized loss recorded in accumulated other comprehensive income (loss) in the Consolidated Balance Sheets of $2.1 million at June 30, 2013 and $2.0 million at December 31, 2012. The Company believes that the loss is temporary due to the strong underlying credit rating of the securities and the fact that the Company does not intend to sell the securities and is not likely to be required to sell the securities. The assumptions used in valuing the ARS are volatile and subject to change as the underlying sources of these assumptions and market conditions change. Significant increases or decreases in any of the valuation assumptions in isolation would result in a significant change in the fair value.

The following table provides a summary of changes in fair value of the Company’s Level 3 financial assets for the six months ended June 30, 2013 and 2012 (in thousands):


	ARS
Balance at December 31, 2011	$	9,565
Sales		—
Gains included in other comprehensive income (loss)		121

Balance at June 30, 2012	$	9,686


	ARS
Balance at December 31, 2012	$	8,970
Sales		—
Losses included in other comprehensive income (loss)		(50	)

Balance at June 30, 2013	$	8,920

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References + Details

Non-Marketable Investments	6 Months Ended
Non-Marketable Investments	Jun. 30, 2013
Investments Debt And Equity Securities [Abstract]
Non-Marketable Investments	Note 3 — Non-Marketable Investments At June 30, 2013 and December 31, 2012, the carrying value of the Company’s non-marketable investments, which were composed primarily of interests in technology-related private equity funds, was $6.6 million and $6.9 million, respectively, and is included in other assets in the Consolidated Balance Sheets. One of the Company’s investments, with a book value of $1.0 million and $1.2 million at June 30, 2013 and December 31, 2012, respectively, is being accounted for using the cost method and, accordingly, is valued at cost unless an other-than-temporary impairment in its value occurs. The other investments are being accounted for using the equity method as the investments are limited partnerships and the Company has an ownership interest in excess of 5% and, accordingly, the Company records its share of the investee’s operating results each period. The Company recorded a gain (loss) from its non-marketable investments of $(0.1) million and $0.1 million during both the three and six months ended June 30, 2013 and 2012, respectively, which is included in gains (losses) on investments, net in the Consolidated Statements of Income. In May 2013, the Company extended the expiration date of a cash bonus plan, originally adopted in 2000, that would pay a bonus, after the return of invested capital from certain of the Company’s investments, to certain key employees. To date, no bonuses have been paid under the plan. The plan will now automatically expire on June 30, 2015, subject to earlier expiration as provided in the plan in the event that prior to such date there are less than 10 participants in the plan or all of the Company’s invested capital (as defined in the plan) has been returned to the Company.

Reorganization

6 Months Ended

Jun. 30, 2013

Restructuring And Related Activities [Abstract]

Reorganization

Note 4 — Reorganization

The following table rolls forward the activity in the reorganization accrual for the six months ended June 30, 2013 (in thousands):


	Workforce
	Reduction
Accrual at December 31, 2012	$	14
Additions		1,905
Cash payments		(1,319	)

Accrual at June 30, 2013	$	600

During the six months ended June 30, 2013 the Company incurred $1.9 million of severance and related costs for the elimination of 31 jobs or approximately 2.5% of its workforce worldwide to streamline its operations. The accrual at June 30, 2013 is expected to be paid by the end of 2013.

Net Income Per Common Share

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Net Income Per Common Share

Note 5 — Net Income Per Common Share

Basic net income per common share is computed by dividing net income by the basic weighted average number of common shares outstanding during the period. Diluted net income per common share is computed by dividing net income by the diluted weighted average number of common shares and common equivalent shares outstanding during the period. The weighted average number of common equivalent shares outstanding has been determined in accordance with the treasury-stock method. Common equivalent shares consist of common stock issuable on the exercise of outstanding options and vesting of restricted stock units when dilutive.

Basic and diluted weighted average common shares are as follows (in thousands):


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
Basic weighted average common shares outstanding		21,256		22,583		21,781		22,660
Weighted average common equivalent shares		491		440		421		438

Diluted weighted average common shares outstanding		21,747		23,023		22,202		23,098

Options excluded from diluted weighted average share calculation as effect would have been anti-dilutive		295		559		746		483

Stockholders' Equity

6 Months Ended

Jun. 30, 2013

Equity [Abstract]

Stockholders' Equity

Note 6 — Stockholders’ Equity

Equity Plans

Stock option activity for the six months ended June 30, 2013 is presented below (in thousands, except per share data):


	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding at December 31, 2012		1,936		$	29.03
Granted		430			34.91
Exercised		(408	)		24.70
Forfeited		(52	)		31.49

Outstanding at June 30, 2013		1,906		$	31.21		7.15	$	10,553

Exercisable at June 30, 2013		967		$	28.61		5.33	$	7,870

Restricted stock unit activity for the six months ended June 30, 2013 is presented below (in thousands, except per share data):


				Weighted-
				Average
	Number of			Grant Date
	Shares			Fair Value
Unvested at December 31, 2012		301		$	32.98
Granted		207			34.58
Vested or settled		(67	)		32.91
Forfeited		(52	)		30.79

Unvested at June 30, 2013		389		$	34.14

Stock-Based Compensation

Forrester recognizes the fair value of stock-based compensation in net income over the requisite service period of the individual grantee, which generally equals the vesting period. Stock-based compensation was recorded in the following expense categories (in thousands):


	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2013			2012		2013		2012
Cost of services and fulfillment	$	743		$	725	$	1,647	$	1,378
Selling and marketing		150			207		572		431
General and administrative		(25	)		257		509		703

Total	$	868		$	1,189	$	2,728	$	2,512

In 2009, the Company issued to its employees 95,496 performance-based RSUs. The vesting of the RSUs was subject to performance criteria and would vest at 100% or 40% on April 1, 2012, or the RSUs could be forfeited, depending on whether specified revenue growth and certain operating margin targets related to full year 2011 performance were achieved. Based on 2011 financial performance, 40% of the then outstanding RSUs vested on April 1, 2012. Compensation expense in 2010 and 2009 was recognized based on an estimate of 100% vesting of the RSUs and in the second quarter of 2011 the Company modified it assessment of vesting to the 40% level.

In 2010, the Company issued to its employees approximately 63,000 performance-based RSUs. The vesting of the RSUs was subject to performance criteria and would vest at 100% or 40% on April 1, 2013, or the RSUs could be forfeited, depending on whether specified revenue growth and certain operating margin targets related to full year 2012 performance were achieved. Based on 2012 financial performance these RSUs were forfeited. Compensation expense through the third quarter of 2011 was recognized based on an estimate of 100% vesting of the RSUs and in the fourth quarter of 2011 the Company modified its assessment of vesting to a zero percent level. The Company continued to utilize a zero percent vesting estimate through March 31, 2013.

In 2011, the Company issued to its employees approximately 71,000 performance-based RSUs. The vesting of the RSUs is subject to performance criteria and will vest at 100% or 40% on April 1, 2014, or the RSUs could be forfeited, depending on whether specified revenue growth and certain operating margin targets related to full year 2013 performance are achieved. Compensation expense through the third quarter of 2011 was recognized based on an estimate of 100% vesting of the RSUs and in the fourth quarter of 2011 the Company modified its assessment of vesting to a zero percent level. The Company continued to utilize a zero percent vesting estimate through the six months ended June 30, 2013.

Forrester utilizes the Black-Scholes valuation model for estimating the fair value of stock options. Options granted under the equity incentive plans and shares subject to purchase under the employee stock purchase plan were valued using the following assumptions:


	Three Months Ended						Three Months Ended
	June 30, 2013						June 30, 2012
	Equity Incentive			Employee Stock			Equity Incentive			Employee Stock
	Plans			Purchase Plan			Plans			Purchase Plan
Average risk-free interest rate		0.71	%		0.11	%		0.89	%		0.14	%
Expected dividend yield		2.1	%		2.1	%		1.7	%		1.7	%
Expected life		4.9 Years			0.5 Years			4.5 Years			0.5 Years
Expected volatility		36	%		25	%		40	%		31	%
Weighted average fair value	$	9.27		$	5.97		$	9.81		$	7.54

	Six Months Ended						Six Months Ended
	June 30, 2013						June 30, 2012
	Equity Incentive			Employee Stock			Equity Incentive			Employee Stock
	Plans			Purchase Plan			Plans			Purchase Plan
Average risk-free interest rate		0.72	%		0.11	%		0.89	%		0.14	%
Expected dividend yield		2.1	%		2.1	%		1.7	%		1.7	%
Expected life		4.8 Years			0.5 Years			4.5 Years			0.5 Years
Expected volatility		37	%		25	%		40	%		31	%
Weighted average fair value	$	9.05		$	5.97		$	9.84		$	7.54

Dividends

In the first six months of 2013, the Company declared and paid dividends of $0.30 per share or $6.4 million in the aggregate. In the first six months of 2012, the Company declared and paid dividends of $0.28 per share or $6.4 million in the aggregate. In July 2013, the Company declared a dividend of $0.15 per share payable on September 18, 2013 to shareholders of record as of September 4, 2013.

Treasury Stock

Forrester’s Board of Directors has authorized an aggregate $385.0 million, including $25 million authorized in July 2013 and $50 million authorized in February 2013, to purchase common stock under the stock repurchase program. The shares repurchased may be used, among other things, in connection with Forrester’s employee and director equity incentive and purchase plans. As of June 30, 2013, Forrester had repurchased approximately 11.7 million shares of common stock at an aggregate cost of approximately $302.9 million.

On April 3, 2013 the Company commenced a “modified Dutch auction” self-tender offer to repurchase up to $130 million of its common stock at a price per share within the range of $32.00 to $36.00. A “modified Dutch auction” self-tender offer allows stockholders to indicate how many shares and at what price within the company’s specified range (in increments of $0.25 per share) they wish to tender. When the tender offer expired, based upon the number of shares tendered and the prices specified by the tendering stockholders, the Company determined the purchase price, which was the lowest price per share within the range that enabled the Company to purchase up to $130 million of its common stock. The tender offer expired on May 1, 2013 and the Company purchased 2,054,732 shares of its common stock on May 7, 2013 at a purchase price of $36.00 per share for an aggregate purchase price of $74.0 million, plus approximately $1.1 million of expenses related to the tender offer.

On June 30, 2013, the Company retired 11.7 million shares of treasury stock. These retired shares are now included in the Company’s pool of authorized but unissued shares. The retired stock had a carrying value of approximately $302.5 million. The Company’s accounting policy upon the formal retirement of treasury stock is to deduct the par value of the retired stock from Common Stock and to reflect any excess of cost over par value as a deduction from Additional Paid-in Capital.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Subparagraph (SAB TOPIC 4.C)
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph d
-Article 4

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 16: http://www.xbrl.org/2003/role/presentationRef
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-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 17: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 18: http://www.xbrl.org/2003/role/presentationRef
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-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 19: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

+ Details

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Note 7 — Income Taxes Forrester provides for income taxes on an interim basis according to management’s estimate of the effective tax rate expected to be applicable for the full fiscal year. Certain items such as changes in tax rates and tax benefits related to disqualifying dispositions of incentive stock options are treated as discrete items and are recorded in the period in which they arise.

Operating Segments

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Operating Segments

Note 8 — Operating Segments

Forrester is organized into two client groups with each client group responsible for writing relevant research for the roles within the client organization on a worldwide basis. The two client groups, which are considered operating segments, are: Business Technology (“BT”) and Marketing and Strategy (“M&S”). In addition, the Company’s Events segment supports both client groups. Each client group generates revenues through sales of research, advisory and other service offerings targeted at specific roles within their targeted clients. Each client group consists of research personnel focused primarily on issues relevant to particular roles and to the day-to-day responsibilities of persons within the roles. Amounts included in the Events segment relate to the operations of the events production department. Revenue reported in the Events segment consists primarily of sponsorships and event tickets to Forrester events.

Forrester evaluates reportable segment performance and allocates resources based on direct margin. Direct margin, as presented below, is defined as operating income excluding sales expenses, certain marketing and fulfillment expenses, stock-based compensation expense, general and administrative expenses, depreciation expense, amortization of intangible assets and reorganization costs. In the first quarter of 2013, the Company modified segment direct margin for each of the BT and M&S client groups to reflect the transfer of revenue and direct costs related to one product line from BT to M&S and to reallocate certain shared consulting costs between BT & M&S. Accordingly, the 2012 amounts have been reclassified to conform to the current presentation. The accounting policies used by the segments are the same as those used in the consolidated financial statements.

The following tables present information about reportable segments (in thousands):


	BT		M&S		Events		Consolidated
Three Months Ended June 30, 2013
Revenue	$	38,434	$	31,807	$	7,923	$	78,164
Direct margin		25,798		20,376		4,123		50,297
Selling, marketing, administrative and other expenses								(40,430	)
Amortization of intangible assets								(554	)
Reorganization costs								(314	)
Other income and gains/losses on investments								204

Income before income taxes							$	9,203


	BT		M&S		Events		Consolidated
Three Months Ended June 30, 2012
Revenue	$	39,523	$	31,222	$	8,348	$	79,093
Direct margin		26,851		20,054		4,261		51,166
Selling, marketing, administrative and other expenses								(39,068	)
Amortization of intangible assets								(586	)
Reorganization costs								(51	)
Other income and gains/losses on investments								214

Income before income taxes							$	11,675


	BT		M&S		Events		Consolidated
Six Months Ended June 30, 2013
Revenue	$	77,309	$	63,589	$	8,765	$	149,663
Direct margin		52,829		41,694		3,860		98,383
Selling, marketing, administrative and other expenses								(82,948	)
Amortization of intangible assets								(1,113	)
Reorganization costs								(1,905	)
Other income and gains/losses on investments								529

Income before income taxes							$	12,946


	BT		M&S		Events		Consolidated
Six Months Ended June 30, 2012
Revenue	$	77,848	$	62,402	$	9,103	$	149,353
Direct margin		53,058		40,734		3,968		97,760
Selling, marketing, administrative and other expenses								(79,077	)
Amortization of intangible assets								(1,200	)
Reorganization costs								(1,394	)
Other income and gains/losses on investments								682

Income before income taxes							$	16,771

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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+ Details

Recent Accounting Pronouncements	6 Months Ended
Recent Accounting Pronouncements	Jun. 30, 2013
Accounting Changes And Error Corrections [Abstract]
Recent Accounting Pronouncements	Note 9 — Recent Accounting Pronouncements In July 2012, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2012-02, Intangibles – Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment. This accounting standard allows an entity the option to first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test for indefinite-lived intangibles other than goodwill. Under that option, an entity would no longer be required to calculate the fair value of an indefinite-lived intangible asset unless the entity determines, based on that qualitative assessment, that it is more likely than not that the fair value of the indefinite-lived intangible asset is less than its carrying amount. This ASU was effective for annual and interim indefinite-lived intangible asset impairment tests performed for fiscal years beginning after September 15, 2012. As the Company does not have any indefinite-lived intangible assets as of June 30, 2013 other than goodwill, the adoption of this standard on January 1, 2013 did not have an impact on the Company’s consolidated financial results. In February 2013, the FASB issued ASU No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income. This accounting standard requires companies to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, companies are required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income. This ASU is effective for reporting periods beginning after December 15, 2012. Other than requiring additional disclosures, adoption of this ASU did not have a significant impact on the Company’s consolidated financial results.

Recent Accounting Pronouncements (Policies)	6 Months Ended
Recent Accounting Pronouncements (Policies)	Jun. 30, 2013
Accounting Changes And Error Corrections [Abstract]
Intangibles - Goodwill and Other	In July 2012, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2012-02, Intangibles – Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment. This accounting standard allows an entity the option to first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test for indefinite-lived intangibles other than goodwill. Under that option, an entity would no longer be required to calculate the fair value of an indefinite-lived intangible asset unless the entity determines, based on that qualitative assessment, that it is more likely than not that the fair value of the indefinite-lived intangible asset is less than its carrying amount. This ASU was effective for annual and interim indefinite-lived intangible asset impairment tests performed for fiscal years beginning after September 15, 2012. As the Company does not have any indefinite-lived intangible assets as of June 30, 2013 other than goodwill, the adoption of this standard on January 1, 2013 did not have an impact on the Company’s consolidated financial results.
Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income	In February 2013, the FASB issued ASU No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income. This accounting standard requires companies to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, companies are required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income. This ASU is effective for reporting periods beginning after December 15, 2012. Other than requiring additional disclosures, adoption of this ASU did not have a significant impact on the Company’s consolidated financial results.

Marketable Investments (Tables)

6 Months Ended

Jun. 30, 2013

Investments Debt And Equity Securities [Abstract]

Summary of Company's Marketable Investments

The following table summarizes the Company’s marketable investments (in thousands):


			Gross		Gross
	Amortized		Unrealized		Unrealized			Market
	Cost		Gains		Losses			Value
June 30, 2013
Available-for-sale securities
State and municipal obligations	$	18,478	$	16	$	(4	)	$	18,490
Federal agency and corporate obligations		105,300		169		(409	)		105,060

Total short-term available-for-sale securities		123,778		185		(413	)		123,550
ARS, long-term		11,000		—		(2,080	)		8,920

Total available-for-sale securities	$	134,778	$	185	$	(2,493	)	$	132,470


			Gross		Gross
	Amortized		Unrealized		Unrealized			Market
	Cost		Gains		Losses			Value
December 31, 2012
Available-for-sale securities
State and municipal obligations	$	18,859	$	27	$	(14	)	$	18,872
Federal agency and corporate obligations		115,653		380		(29	)		116,004

Total short-term available-for-sale securities		134,512		407		(43	)		134,876
ARS, long-term		11,000		—		(2,030	)		8,970

Total available-for-sale securities	$	145,512	$	407	$	(2,073	)	$	143,846

Summary of Maturity Periods of the Marketable Securities

The following table reflects the ARS at their contractual maturity dates of between 2024 and 2034 (in thousands).


	FY 2013		FY2014		FY2015		Thereafter		Total
State and municipal obligations	$	6,309	$	10,092	$	2,089	$	—	$	18,490
Federal agency and corporate obligations		20,245		32,273		36,640		15,902		105,060
ARS		—		—		—		8,920		8,920

Total	$	26,554	$	42,365	$	38,729	$	24,822	$	132,470

Summary of Gross Unrealized Losses and Market Value of Available-for-Sale Securities with Unrealized Losses


	As of June 30, 2013
	Less Than 12 Months				12 Months or Greater
	Market		Unrealized		Market		Unrealized
	Value		Losses		Value		Losses
State and municipal bonds	$	4,593	$	4	$	—	$	—
Federal agency and corporate obligations		57,448		409		—		—
ARS		—		—		8,920		2,080

Total	$	62,041	$	413	$	8,920	$	2,080


	As of December 31, 2012
	Less Than 12 Months				12 Months or Greater
	Market		Unrealized		Market		Unrealized
	Value		Losses		Value		Losses
State and municipal bonds	$	9,430	$	14	$	—	$	—
Federal agency and corporate obligations		17,716		29		—		—
ARS		—		—		8,970		2,030

Total	$	27,146	$	43	$	8,970	$	2,030

Summary of Company's Fair Value Hierarchy for its Financial Assets


	As of June 30, 2013
	Level 1		Level 2		Level 3		Total
Money market funds (1)	$	964	$	—	$	—	$	964
State and municipal obligations		—		18,490		—		18,490
Federal agency and corporate obligations (2)		—		111,209		—		111,209
ARS		—		—		8,920		8,920

Total	$	964	$	129,699	$	8,920	$	139,583


	As of December 31, 2012
	Level 1		Level 2		Level 3		Total
Money market funds (1)	$	815	$	—	$	—	$	815
State and municipal obligations		—		18,872		—		18,872
Federal agency and corporate obligations (2)		—		148,117		—		148,117
ARS		—		—		8,970		8,970

Total	$	815	$	166,989	$	8,970	$	176,774

(1)	Included in cash and cash equivalents.

(2)	$6.1 million and $32.1 million included in cash and cash equivalents at June 30, 2013 and December 31, 2012, respectively, as original maturities at the time of purchase were 90 days or less.

Summary of Changes in Fair Value of Level 3 Financial Assets

The following table provides a summary of changes in fair value of the Company’s Level 3 financial assets for the six months ended June 30, 2013 and 2012 (in thousands):


	ARS
Balance at December 31, 2011	$	9,565
Sales		—
Gains included in other comprehensive income (loss)		121

Balance at June 30, 2012	$	9,686


	ARS
Balance at December 31, 2012	$	8,970
Sales		—
Losses included in other comprehensive income (loss)		(50	)

Balance at June 30, 2013	$	8,920

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details

Reorganization (Tables)

6 Months Ended

Jun. 30, 2013

Restructuring And Related Activities [Abstract]

Summary of Roll Forward of Activity in Reorganization Accrual

The following table rolls forward the activity in the reorganization accrual for the six months ended June 30, 2013 (in thousands):


	Workforce
	Reduction
Accrual at December 31, 2012	$	14
Additions		1,905
Cash payments		(1,319	)

Accrual at June 30, 2013	$	600

Net Income Per Common Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Summary of Basic and Diluted Weighted Average Common Shares

Basic and diluted weighted average common shares are as follows (in thousands):


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
Basic weighted average common shares outstanding		21,256		22,583		21,781		22,660
Weighted average common equivalent shares		491		440		421		438

Diluted weighted average common shares outstanding		21,747		23,023		22,202		23,098

Options excluded from diluted weighted average share calculation as effect would have been anti-dilutive		295		559		746		483

Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2013

Equity [Abstract]

Summary of Stock Option Activity

Stock option activity for the six months ended June 30, 2013 is presented below (in thousands, except per share data):


	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding at December 31, 2012		1,936		$	29.03
Granted		430			34.91
Exercised		(408	)		24.70
Forfeited		(52	)		31.49

Outstanding at June 30, 2013		1,906		$	31.21		7.15	$	10,553

Exercisable at June 30, 2013		967		$	28.61		5.33	$	7,870

Details of Restricted Stock Unit Activity

Restricted stock unit activity for the six months ended June 30, 2013 is presented below (in thousands, except per share data):


				Weighted-
				Average
	Number of			Grant Date
	Shares			Fair Value
Unvested at December 31, 2012		301		$	32.98
Granted		207			34.58
Vested or settled		(67	)		32.91
Forfeited		(52	)		30.79

Unvested at June 30, 2013		389		$	34.14

Summary of Stock-Based Compensation Recorded in Expense Categories

Stock-based compensation was recorded in the following expense categories (in thousands):


	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2013			2012		2013		2012
Cost of services and fulfillment	$	743		$	725	$	1,647	$	1,378
Selling and marketing		150			207		572		431
General and administrative		(25	)		257		509		703

Total	$	868		$	1,189	$	2,728	$	2,512

Assumptions for Valuation of Options Granted under Equity Incentive Plans and Shares Subject to Purchase under Employee Stock Purchase Plan

Options granted under the equity incentive plans and shares subject to purchase under the employee stock purchase plan were valued using the following assumptions:


	Three Months Ended						Three Months Ended
	June 30, 2013						June 30, 2012
	Equity Incentive			Employee Stock			Equity Incentive			Employee Stock
	Plans			Purchase Plan			Plans			Purchase Plan
Average risk-free interest rate		0.71	%		0.11	%		0.89	%		0.14	%
Expected dividend yield		2.1	%		2.1	%		1.7	%		1.7	%
Expected life		4.9 Years			0.5 Years			4.5 Years			0.5 Years
Expected volatility		36	%		25	%		40	%		31	%
Weighted average fair value	$	9.27		$	5.97		$	9.81		$	7.54

	Six Months Ended						Six Months Ended
	June 30, 2013						June 30, 2012
	Equity Incentive			Employee Stock			Equity Incentive			Employee Stock
	Plans			Purchase Plan			Plans			Purchase Plan
Average risk-free interest rate		0.72	%		0.11	%		0.89	%		0.14	%
Expected dividend yield		2.1	%		2.1	%		1.7	%		1.7	%
Expected life		4.8 Years			0.5 Years			4.5 Years			0.5 Years
Expected volatility		37	%		25	%		40	%		31	%
Weighted average fair value	$	9.05		$	5.97		$	9.84		$	7.54

Operating Segments (Tables)

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Summary of Information about Reportable Segments

The following tables present information about reportable segments (in thousands):


	BT		M&S		Events		Consolidated
Three Months Ended June 30, 2013
Revenue	$	38,434	$	31,807	$	7,923	$	78,164
Direct margin		25,798		20,376		4,123		50,297
Selling, marketing, administrative and other expenses								(40,430	)
Amortization of intangible assets								(554	)
Reorganization costs								(314	)
Other income and gains/losses on investments								204

Income before income taxes							$	9,203


	BT		M&S		Events		Consolidated
Three Months Ended June 30, 2012
Revenue	$	39,523	$	31,222	$	8,348	$	79,093
Direct margin		26,851		20,054		4,261		51,166
Selling, marketing, administrative and other expenses								(39,068	)
Amortization of intangible assets								(586	)
Reorganization costs								(51	)
Other income and gains/losses on investments								214

Income before income taxes							$	11,675


	BT		M&S		Events		Consolidated
Six Months Ended June 30, 2013
Revenue	$	77,309	$	63,589	$	8,765	$	149,663
Direct margin		52,829		41,694		3,860		98,383
Selling, marketing, administrative and other expenses								(82,948	)
Amortization of intangible assets								(1,113	)
Reorganization costs								(1,905	)
Other income and gains/losses on investments								529

Income before income taxes							$	12,946


	BT		M&S		Events		Consolidated
Six Months Ended June 30, 2012
Revenue	$	77,848	$	62,402	$	9,103	$	149,353
Direct margin		53,058		40,734		3,968		97,760
Selling, marketing, administrative and other expenses								(79,077	)
Amortization of intangible assets								(1,200	)
Reorganization costs								(1,394	)
Other income and gains/losses on investments								682

Income before income taxes							$	16,771

Marketable Investments - Summary of Company's Marketable Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 134,778	$ 145,512
Gross Unrealized Gains	185	407
Gross Unrealized Losses	(2,493)	(2,073)
Total short and long term	132,470	143,846
State and Municipal Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,478	18,859
Gross Unrealized Gains	16	27
Gross Unrealized Losses	(4)	(14)
Total short and long term	18,490	18,872
Federal Agency and Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	105,300	115,653
Gross Unrealized Gains	169	380
Gross Unrealized Losses	(409)	(29)
Total short and long term	105,060	116,004
Total Short-Term Available-for-Sale Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	123,778	134,512
Gross Unrealized Gains	185	407
Gross Unrealized Losses	(413)	(43)
Total short and long term	123,550	134,876
ARS [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	11,000	11,000
Gross Unrealized Gains
Gross Unrealized Losses	(2,080)	(2,030)
Total short and long term	$ 8,920	$ 8,970

Marketable Investments - Summary of Maturity Periods of the Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
FY 2013, Total	$ 26,554
FY 2014, Total	42,365
FY 2015, Total	38,729
Thereafter, Total	24,822
Total short and long term	132,470	$ 143,846
State and Municipal Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
FY 2013, Total	6,309
FY 2014, Total	10,092
FY 2015, Total	2,089
Thereafter, Total
Total short and long term	18,490	18,872
Federal Agency and Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
FY 2013, Total	20,245
FY 2014, Total	32,273
FY 2015, Total	36,640
Thereafter, Total	15,902
Total short and long term	105,060	116,004
ARS [Member]
Schedule of Available-for-sale Securities [Line Items]
FY 2013, Total
FY 2014, Total
FY 2015, Total
Thereafter, Total	8,920
Total short and long term	$ 8,920	$ 8,970

Marketable Investments - Summary of Gross Unrealized Losses and Market Value of Available-for-Sale Securities with Unrealized Losses (Detail) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Less Than 12 Months, Market Value	$ 62,041	$ 27,146
Available for sale securities, Less Than 12 Months, Unrealized Losses	413	43
Available for sale securities, 12 Months or Greater, Market Value	8,920	8,970
Available for sale securities, 12 Months or Greater, Unrealized Losses	2,080	2,030
State and Municipal Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Less Than 12 Months, Market Value	4,593	9,430
Available for sale securities, Less Than 12 Months, Unrealized Losses	4	14
Available for sale securities, 12 Months or Greater, Market Value
Available for sale securities, 12 Months or Greater, Unrealized Losses
Federal Agency and Corporate Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Less Than 12 Months, Market Value	57,448	17,716
Available for sale securities, Less Than 12 Months, Unrealized Losses	409	29
Available for sale securities, 12 Months or Greater, Market Value
Available for sale securities, 12 Months or Greater, Unrealized Losses
ARS [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Less Than 12 Months, Market Value
Available for sale securities, Less Than 12 Months, Unrealized Losses
Available for sale securities, 12 Months or Greater, Market Value	8,920	8,970
Available for sale securities, 12 Months or Greater, Unrealized Losses	$ 2,080	$ 2,030

Marketable Investments - Summary of Company's Fair Value Hierarchy (Parenthetical) (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Original maturities	90 days
Federal Agency and Corporate Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 6.1	$ 32.1

Marketable investments - Additional information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized loss recorded in accumulated other comprehensive income (loss)	$ 2.1		$ 2.0
ARS [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average interest rate	1.70%
Weighted average discount rate	5.30%
Weighted average holding period	8 years 8 months 12 days
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intervals for each security	7 days
Interest rates on securities ranged	0.10%	0.10%
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intervals for each security	35 days
Interest rates on securities ranged	0.40%	0.50%

Marketable Investments - Summary of Changes in Fair Value of Level3 Financial Asset (Detail) - ARS [Member] - Level 3 [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets, Beginning Balance	$ 8,970	$ 9,565
Sales
Gains (Losses)included in other comprehensive income (loss)	(50)	121
Fair value of assets, Ending Balance	$ 8,920	$ 9,686

Non-Marketable Investments - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2013 USD ($) Participant	Jun. 30, 2012 USD ($)	Dec. 31, 2012 USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Book value of investment	$ 1,000,000		$ 1,000,000		$ 1,200,000
Bonus paid under cash bonus plan			$ 0
Cash bonus plan expiration date			Jun. 30, 2015
Technology Related Private Equity Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying value of the Company's non-marketable investments	6,600,000		$ 6,600,000		$ 6,900,000
Non-marketable Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Gain (losses) from non-marketable investments	$ (100,000)	$ 100,000	$ (100,000)	$ 100,000
Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Participant in the cash bonus plan \| Participant			10
Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Ownership interest of company	5.00%		5.00%

Reorganization - Summary of Roll Forward of Activity in Reorganization Accrual (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Additions	$ 314	$ 51	$ 1,905	$ 1,394
Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Accrual Beginning Balance			14
Additions			1,905
Cash payments			(1,319)
Accrual Ending Balance	$ 600		$ 600

Reorganization - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2013 USD ($) Job
Restructuring And Related Activities [Abstract]
Severance and related costs \| $	$ 1.9
Number of jobs eliminated worldwide \| Job	31
Number of jobs eliminated worldwide, percentage	2.50%

Net Income Per Common Share - Summary of Basic and Diluted Weighted Average Common Shares (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding	21,256	22,583	21,781	22,660
Weighted average common equivalent shares	491	440	421	438
Diluted weighted average common shares outstanding	21,747	23,023	22,202	23,098
Options excluded from diluted weighted average share calculation as effect would have been anti-dilutive	295	559	746	483

Stockholders' Equity - Summary of Stock Option Activity (Detail) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2013 USD ($) $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of Shares, Outstanding at December 31, 2012 \| shares	1,936
Number of Shares, Granted \| shares	430
Number of Shares, Exercised \| shares	(408)
Number of Shares, Forfeited \| shares	(52)
Number of Shares, Outstanding at June 30, 2013 \| shares	1,906
Number of Shares, Exercisable at June 30, 2013 \| shares	967
Weighted Average Exercise Price Per Share, Outstanding, Beginning balance \| $ / shares	$ 29.03
Weighted Average Exercise Price Per Share, Granted \| $ / shares	34.91
Weighted Average Exercise Price Per Share, Exercised \| $ / shares	24.70
Weighted Average Exercise Price Per Share, Forfeited \| $ / shares	31.49
Weighted Average Exercise Price Per Share, Outstanding, Ending balance \| $ / shares	31.21
Weighted Average Exercise Price Per Share, Exercisable at June 30, 2013 \| $ / shares	$ 28.61
Weighted Average Remaining Contractual Term, Outstanding at June 30, 2013	7 years 1 month 24 days
Weighted Average Remaining Contractual Term, Exercisable at June 30, 2013	5 years 3 months 29 days
Aggregate Intrinsic Value, Outstanding at June 30, 2013 \| $	$ 10,553
Aggregate Intrinsic Value, Exercisable at June 30, 2013 \| $	$ 7,870

Stockholders' Equity - Details of Restricted Stock Unit Activity (Detail) shares in Thousands	6 Months Ended
	Jun. 30, 2013 $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of Shares, Unvested at December 31, 2012 \| shares	301
Number of Shares, Granted \| shares	207
Number of Shares, Vested or settled \| shares	(67)
Number of Shares, Forfeited \| shares	(52)
Number of Shares, Unvested at June 30, 2013 \| shares	389
Weighted Average Grant Date Fair Value, Unvested, Beginning Balance \| $ / shares	$ 32.98
Weighted Average Grant Date Fair Value, Granted \| $ / shares	34.58
Weighted Average Grant Date Fair Value, Vested or settled \| $ / shares	32.91
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	30.79
Weighted Average Grant Date Fair Value , Unvested, Ending Balance \| $ / shares	$ 34.14

Stockholders' Equity - Summary of Stock-Based Compensation Recorded in Expense Categories (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total allocated share-based compensation expense	$ 868	$ 1,189	$ 2,728	$ 2,512
Cost of Services and Fulfillment [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total allocated share-based compensation expense	743	725	1,647	1,378
Selling and Marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total allocated share-based compensation expense	150	207	572	431
General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total allocated share-based compensation expense	$ (25)	$ 257	$ 509	$ 703

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended				3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2013	Jun. 30, 2013	Apr. 30, 2013	Feb. 28, 2013	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU's issued		389,000			389,000		389,000					301,000
Dividend declared and paid per share							$ 0.30	$ 0.28
Aggregate dividend declared for the year							$ 6.4	$ 6.4
Dividend declared					$ 0.15	$ 0.14	$ 0.30	$ 0.28
Aggregate cost of repurchase of common stock							$ 302.9
Authorized to Purchase of common stock under the stock repurchase program				$ 50.0			$ 385.0
Cumulative repurchase of common stock		11,700,000			11,700,000		11,700,000
Repurchase of self-tender			$ 130.0
Increment in per share value			$ 0.25
Purchase of common stock			2,054,732
Purchase price of common stock			$ 36.00
Aggregate price of stock			$ 74.0
Expenses related to tender offer			$ 1.1
Treasury stock, retired		11,700,000
Carrying value of retired stock		$ 302.5
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price per share			$ 32.00
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price per share			$ 36.00
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend declared	$ 0.15
Authorized to Purchase of common stock under the stock repurchase program	$ 25.0
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU's issued									71,000	63,000	95,496
Performance of RSU's Vesting									100% or 40% on April 1, 2014	100% or 40% on April 1, 2013	100% or 40% on April 1, 2012
Performance of Outstanding RSU's											40.00%
Compensation expense Estimate vesting									100.00%	100.00%	100.00%
Modified Estimate vesting of RSU's							0.00%			0.00%	40.00%

Stockholders' Equity - Assumptions for Valuation of Options Granted under Equity Incentive Plans and Shares Subject to Purchase under Employee Stock Purchase Plan (Detail) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Equity Incentive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average risk-free interest rate	0.71%	0.89%	0.72%	0.89%
Expected dividend yield	2.10%	1.70%	2.10%	1.70%
Expected life	4 years 10 months 24 days	4 years 6 months	4 years 9 months 18 days	4 years 6 months
Expected volatility	36.00%	40.00%	37.00%	40.00%
Weighted average fair value	$ 9.27	$ 9.81	$ 9.05	$ 9.84
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average risk-free interest rate	0.11%	0.14%	0.11%	0.14%
Expected dividend yield	2.10%	1.70%	2.10%	1.70%
Expected life	6 months	6 months	6 months	6 months
Expected volatility	25.00%	31.00%	25.00%	31.00%
Weighted average fair value	$ 5.97	$ 7.54	$ 5.97	$ 7.54

Operating Segments - Additional Information (Detail)	6 Months Ended
Operating Segments - Additional Information (Detail)	Jun. 30, 2013 Segment
Segment Reporting [Abstract]
Number of Operating Segments	2

Operating Segments - Summary of Information about Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Revenue	$ 78,164	$ 79,093	$ 149,663	$ 149,353
Direct margin	50,297	51,166	98,383	97,760
Selling, marketing, administrative and other expenses	(40,430)	(39,068)	(82,948)	(79,077)
Amortization of intangible assets	(554)	(586)	(1,113)	(1,200)
Reorganization costs	(314)	(51)	(1,905)	(1,394)
Other income and gains/losses on investments	204	214	529	682
Income before income taxes	9,203	11,675	12,946	16,771
BT [Member]
Segment Reporting Information [Line Items]
Revenue	38,434	39,523	77,309	77,848
Direct margin	25,798	26,851	52,829	53,058
Selling, marketing, administrative and other expenses
Amortization of intangible assets
Reorganization costs
Other income and gains/losses on investments
Income before income taxes
M&S [Member]
Segment Reporting Information [Line Items]
Revenue	31,807	31,222	63,589	62,402
Direct margin	20,376	20,054	41,694	40,734
Selling, marketing, administrative and other expenses
Amortization of intangible assets
Reorganization costs
Other income and gains/losses on investments
Income before income taxes
Events [Member]
Segment Reporting Information [Line Items]
Revenue	7,923	8,348	8,765	9,103
Direct margin	4,123	4,261	3,860	3,968
Selling, marketing, administrative and other expenses
Amortization of intangible assets
Reorganization costs
Other income and gains/losses on investments
Income before income taxes

Recent Accounting Pronouncements - Additional Information (Detail)	Jun. 30, 2013 USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Indefinite-lived intangible assets	$ 0

Marketable Investments - Summary of Company's Fair Value Hierarchy (Detail) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	$ 139,583	$ 176,774
Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	964	815
State and Municipal Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	18,490	18,872
Federal Agency and Corporate Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	111,209	148,117
ARS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	8,920	8,970
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	964	815
Level 1 [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	964	815
Level 1 [Member] \| State and Municipal Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis
Level 1 [Member] \| Federal Agency and Corporate Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis
Level 1 [Member] \| ARS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	129,699	166,989
Level 2 [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis
Level 2 [Member] \| State and Municipal Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	18,490	18,872
Level 2 [Member] \| Federal Agency and Corporate Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	111,209	148,117
Level 2 [Member] \| ARS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	8,920	8,970
Level 3 [Member] \| Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis
Level 3 [Member] \| State and Municipal Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis
Level 3 [Member] \| Federal Agency and Corporate Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis
Level 3 [Member] \| ARS [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on recurring basis	$ 8,920	$ 8,970