Interim Consolidated Financial Statements (Tables)

6 Months Ended

Jun. 30, 2014

Statements of Income [Member]

Revised Consolidated Financial Statements

Revised Consolidated Statements of Income

	Three Months Ended June 30, 2013								Six Months Ended June 30, 2013
	As Previously Reported			Adjustments			As Revised		As Previously Reported			Adjustments			As Revised
Revenues:
Research services	$	50,512		$	800		$	51,312	$	100,890		$	700		$	101,590
Advisory services and events		27,652			(11	)		27,641		48,773			(49	)		48,724
Total revenues		78,164			789			78,953		149,663			651			150,314
Income from operations		8,999			789			9,788		12,417			651			13,068
Gains (losses) on investments, net		(51	)		149			98		(102	)		—			(102	)
Income before income taxes		9,203			938			10,141		12,946			651			13,597
Income tax provision		3,581			375			3,956		4,983			260			5,243
Net income	$	5,622		$	563		$	6,185	$	7,963		$	391		$	8,354
Basic income per common share	$	0.26		$	0.03		$	0.29	$	0.37		$	0.01		$	0.38
Diluted income per common share	$	0.26		$	0.02		$	0.28	$	0.36		$	0.02		$	0.38

Statements of Cash Flows [Member]

Revised Consolidated Financial Statements

Revised Consolidated Statements of Cash Flows

	Six Months Ended June 30, 2013
	As Previously Reported			Adjustments			As Revised
Cash flows from operating activities:
Net income	$	7,963		$	391		$	8,354
Prepaid expenses and other current assets		4,619			260			4,879
Deferred revenue		(12,955	)		(651	)		(13,606	)
Net cash provided by operating activities		37,231			—			37,231