Segment Information (Tables)

6 Months Ended

Jun. 30, 2016

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



Three Months Ended June 30, 2016	Research		Consulting		Events		Consolidated
Revenues	$	449,170	$	94,068	$	66,760	$	609,998
Gross contribution	313,688		33,274		36,062		383,024
Corporate and other expenses							(299,725		)
Operating income							$	83,299



Three Months Ended June 30, 2015	Research		Consulting		Events		Consolidated
Revenues	$	385,718	$	88,336	$	73,882	$	547,936
Gross contribution	269,846		33,255		39,442		342,543
Corporate and other expenses							(257,323		)
Operating income							$	85,220



Six Months Ended June 30, 2016	Research		Consulting		Events		Consolidated
Revenues	$	889,441	$	179,008	$	98,815	$	1,167,264
Gross contribution	621,874		62,651		49,045		733,570
Corporate and other expenses							(585,842		)
Operating income							$	147,728



Six Months Ended June 30, 2015	Research		Consulting		Events		Consolidated
Revenues	$	766,808	$	165,128	$	87,186	$	1,019,122
Gross contribution	536,911		59,582		41,884		638,377
Corporate and other expenses							(504,475		)
Operating income							$	133,902

The following table provides a reconciliation of total segment gross contribution to net income for the periods indicated (in thousands):



	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
Total segment gross contribution	$	383,024	$	342,543	$	733,570	$	638,377
Costs and expenses:
Cost of services and product development - unallocated (1)	4,448		5,102		9,769		7,512
Selling, general and administrative	272,009		237,991		529,420		467,513
Depreciation and amortization	15,235		10,547		30,252		20,675
Acquisition and integration charges	8,033		3,683		16,401		8,775
Operating income	83,299		85,220		147,728		133,902
Interest expense and other	6,108		5,708		10,230		10,150
Provision for income taxes	29,280		28,357		49,420		44,246
Net income	$	47,911	$	51,155	$	88,078	$	79,506


(1)	The unallocated amounts consist of certain bonus and related fringe costs recorded in Consolidated cost of services and product development expense that are not allocated to segment expense. The Company's policy is to only allocate bonus and related fringe charges to segments for up to 100% of the segment employee's target bonus. Amounts above 100% are absorbed by corporate.