Segment Information (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Schedule of Segment Reporting Information by Segment

The tables below present information about the Company’s reportable segments for the years ended December 31 (in thousands).

	Research		Conferences		Consulting		Consolidated
2021
Revenues	$	4,101,392	$	214,449	$	418,121	$	4,733,962
Gross contribution	3,036,925		133,748		158,843		3,329,516
Corporate and other expenses							(2,413,765)
Operating income							$	915,751
2020
Revenues	$	3,602,892	$	120,140	$	376,371	$	4,099,403
Gross contribution	2,597,852		57,302		115,744		2,770,898
Corporate and other expenses							(2,280,748)
Operating income							$	490,150
2019
Revenues	$	3,374,548	$	476,869	$	393,904	$	4,245,321
Gross contribution	2,351,720		241,757		118,450		2,711,927
Corporate and other expenses							(2,341,840)
Operating income							$	370,087

Schedule of Reconciliation of Segment Gross Contribution to Net Income

The table below provides a reconciliation of total segment gross contribution to net income for the years ended December 31 (in thousands).

	2021		2020		2019
Total segment gross contribution	$	3,329,516	$	2,770,898	$	2,711,927
Costs and expenses:
Cost of services and product development - unallocated (1)	39,647		16,519		17,174
Selling, general and administrative	2,155,658		2,038,963		2,103,424
Depreciation and amortization	212,405		218,984		211,779
Acquisition and integration charges	6,055		6,282		9,463
Operating income	915,751		490,150		370,087
Interest expense and other, net	(98,191)		(119,203)		(92,273)
Gain on event cancellation insurance claims	152,310		—		—
Loss from divested operations	—		—		(2,075)
Loss on extinguishment of debt	—		(44,814)		—
Less: Provision for income taxes	176,310		59,388		42,449
Net income	$	793,560	$	266,745	$	233,290

(1)The unallocated amounts consist of certain bonus and fringe costs recorded in consolidated Cost of services and product development that are not allocated to segment expense. The Company’s policy is to allocate bonuses to segments at 100% of a segment employee’s target bonus. Amounts above or below 100% are absorbed by corporate.

Schedule of Revenue from External Customers and Long-Lived Assets by Geographical Areas

Disaggregated revenue information by reportable segment for the three years ended December 31, 2021 is presented in Note 9 — Revenue and Related Matters. Long-lived asset information by geographic location as of December 31 is summarized in the table below (in thousands).

	2021		2020
Long-lived assets (1):
United States and Canada	$	706,854	$	820,973
Europe, Middle East and Africa	298,083		265,782
Other International	125,572		153,609
Total long-lived assets	$	1,130,509	$	1,240,364

(1)Excludes goodwill and intangible assets for all dates.