Segment Information (Tables)

12 Months Ended

Dec. 31, 2022

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
2022
Revenues	$	4,604,791	$	389,273	$	481,782	$	5,475,846
Gross contribution	3,414,574		210,726		189,834		3,815,134
Corporate and other expenses							(2,715,028)
Operating income							$	1,100,106
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

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).

	2022		2021		2020
Total segment gross contribution	$	3,815,134	$	3,329,516	$	2,770,898
Costs and expenses:
Cost of services and product development - unallocated (1)	33,059		39,647		16,519
Selling, general and administrative	2,480,944		2,155,658		2,038,963
Depreciation and amortization	191,946		212,405		218,984
Acquisition and integration charges	9,079		6,055		6,282
Operating income	1,100,106		915,751		490,150
Interest expense and other, net	(72,911)		(98,191)		(119,203)
Gain on event cancellation insurance claims	—		152,310		—
Loss on extinguishment of debt	—		—		(44,814)
Less: Provision for income taxes	219,396		176,310		59,388
Net income	$	807,799	$	793,560	$	266,745

(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, 2022 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).

	2022		2021
Long-lived assets (1):
United States and Canada	$	622,993	$	706,854
Europe, Middle East and Africa	252,573		298,083
Other International	123,138		125,572
Total long-lived assets	$	998,704	$	1,130,509

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