Segment Information (Tables)

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of segment reporting information, by segment

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

Three Months Ended March 31, 2019 (1)	Research		Conferences		Consulting		Consolidated
Revenues	$	825,374	$	51,932	$	93,138	$	970,444
Gross contribution	575,168		18,876		28,718		622,762
Corporate and other expenses							(573,963		)
Operating income							$	48,799

Three Months Ended March 31, 2018	Research		Conferences		Consulting		Other		Consolidated
Revenues	$	763,924	$	46,087	$	82,896	$	70,658	$	963,565
Gross contribution	531,456		16,190		24,124		43,044		614,814
Corporate and other expenses									(623,525		)
Operating loss									$	(8,711	)

(1) During 2018, the Company divested all of its non-core businesses that comprised its Other segment and, as a result, the Company is no longer recording any additional operating activity in the Other segment.

Schedule of reconciliation of segment gross contribution to net income (loss)

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

	Three Months Ended
	March 31,
	2019			2018
Total segment gross contribution	$	622,762		$	614,814
Costs and expenses:
Cost of services and product development - unallocated (1)	(1,037		)	8,458
Selling, general and administrative	518,770			487,745
Depreciation and amortization	53,458			68,056
Acquisition and integration charges	2,772			59,266
Operating income (loss)	48,799			(8,711		)
Interest expense and other, net	25,671			34,160
Loss from divested operations	2,075			—
Provision (benefit) for income taxes	258			(23,284		)
Net income (loss)	$	20,795		$	(19,587	)

(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.