Segment Information (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Schedule of segment reporting information, by segment

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

Three Months Ended March 31, 2015	Research		Consulting		Events		Consolidated
Revenues	$	381,090	$	76,792	$	13,304	$	471,186
Gross contribution	267,065		26,327		2,442		295,834
Corporate and other expenses							(247,152		)
Operating income							$	48,682

Three Months Ended March 31, 2014	Research		Consulting		Events		Consolidated
Revenues	$	348,114	$	84,271	$	14,317	$	446,702
Gross contribution	246,101		30,338		2,963		279,402
Corporate and other expenses							(220,232		)
Operating income							$	59,170

Schedule of reconciliation of segment gross contribution to net income

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

	Three Months Ended
	March 31,
	2015		2014
Total segment gross contribution	$	295,834	$	279,402
Costs and expenses:
Cost of services and product development - unallocated (1)	2,410		3,521
Selling, general and administrative	229,522		204,617
Depreciation and amortization	10,128		8,738
Acquisition and integration charges	5,092		3,356
Operating income	48,682		59,170
Interest expense and other	4,442		2,479
Provision for income taxes	15,889		18,955
Net income	$	28,351	$	37,736

(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.