Revision of Prior Period Financial Statements (Tables)

12 Months Ended

Dec. 31, 2013

Statements of Balance Sheet [Member]

Revised Consolidated Financial Statements

Revised Consolidated Balance Sheet

	As of December 31, 2012
	As Previously Reported		Adjustments		As Revised
Current Assets:
Prepaid expenses and other current assets	$	18,846	$	58	$	18,904
Total current assets		336,565		58		336,623
Other assets		9,123		125		9,248
Total assets	$	487,832	$	183	$	488,015
Current Liabilities:
Deferred revenue	$	150,479	$	16	$	150,495
Total current liabilities		181,329		16		181,345
Non-current liabilities		9,433		30		9,463
Total liabilities		190,762		46		190,808
Retained earnings		117,648		137		117,785
Total stockholders’ equity		297,070		137		297,207
Total liabilities and stockholders’ equity	$	487,832	$	183	$	488,015

Statements of Income [Member]

Revised Consolidated Financial Statements

The effects of these prior period errors on the consolidated financial statements are as follows (in thousands, except per share amounts):

Revised Consolidated Statements of Income

	Year Ended December 31, 2012								Year Ended December 31, 2011
	As Previously Reported			Adjustments			As Revised		As Previously Reported		Adjustments			As Revised
Revenues:
Research services	$	202,998		$	93		$	203,091	$	191,648	$	(153	)	$	191,495
Advisory services and other		89,932			8			89,940		91,968		(128	)		91,840
Total revenues		292,930			101			293,031		283,616		(281	)		283,335
Income from operations		30,659			101			30,760		36,997		(281	)		36,716
Gains (losses) on investments, net		(449	)		543			94		1,018		(1,417	)		(399	)
Income before income taxes		31,510			644			32,154		38,645		(1,698	)		36,947
Income tax provision		5,936			(78	)		5,858		15,635		(679	)		14,956
Net income	$	25,574		$	722		$	26,296	$	23,010	$	(1,019	)	$	21,991
Basic income per common share	$	1.14		$	0.03		$	1.17	$	1.02	$	(0.05	)	$	0.97
Diluted income per common share	$	1.12		$	0.03		$	1.15	$	0.99	$	(0.04	)	$	0.95

Statements of Cash Flows [Member]

Revised Consolidated Financial Statements

Revised Consolidated Statements of Cash Flows

	Year Ended December 31, 2012									Year Ended December 31, 2011
	As Previously Reported			Adjustments			As Revised			As Previously Reported			Adjustments			As Revised
Cash flows from operating activities:
Net income	$	25,574		$	722		$	26,296		$	23,010		$	(1,019	)	$	21,991
Net (gains) losses from investments		449			(543	)		(94	)		(1,018	)		1,417			399
Deferred income taxes		(10,385	)		(582	)		(10,967	)		15,137			—			15,137
Prepaid expenses and other current assets		6,279			331			6,610			(7,805	)		(679	)		(8,484	)
Accrued expenses and other liabilities		376			173			549			2,485			—			2,485
Deferred revenue		1,807			(101	)		1,706			16,364			281			16,645