Operating Segment and Enterprise Wide Reporting (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Schedule of Information by Reportable Segment

The Company provides information by reportable segment in the tables below (in thousands):

	Research Segment			Consulting Segment			Events Segment			Consolidated
Year Ended December 31, 2023
Research revenues	$	334,396		$	—		$	—		$	334,396
Consulting revenues		28,826			89,402			—			118,228
Events revenues		—			—			28,155			28,155
Total segment revenues		363,222			89,402			28,155			480,779
Segment expenses		(132,444	)		(45,028	)		(20,557	)		(198,029	)
Selling, marketing, administrative and other expenses											(250,756	)
Amortization of intangible assets											(11,956	)
Restructuring costs											(13,272	)
Interest expense, other income, and gains on investments											(481	)
Income before income taxes										$	6,285

	Research Segment			Consulting Segment			Events Segment			Consolidated
Year Ended December 31, 2022
Research revenues	$	354,453		$	—		$	—		$	354,453
Consulting revenues		41,559			111,028			—			152,587
Events revenues		—			—			30,747			30,747
Total segment revenues		396,012			111,028			30,747			537,787
Segment expenses		(133,566	)		(56,889	)		(21,801	)		(212,256	)
Selling, marketing, administrative and other expenses											(270,381	)
Amortization of intangible assets											(13,161	)
Restructuring costs											(9,335	)
Interest expense, other income, and gains on investments											(1,930	)
Income before income taxes										$	30,724

	Research Segment			Consulting Segment			Events Segment			Consolidated
Year Ended December 31, 2021
Research revenues	$	325,340		$	—		$	—		$	325,340
Consulting revenues		47,247			108,867			—			156,114
Events revenues		—			—			12,861			12,861
Total segment revenues		372,587			108,867			12,861			494,315
Segment expenses		(118,155	)		(51,770	)		(12,709	)		(182,634	)
Selling, marketing, administrative and other expenses											(257,576	)
Amortization of intangible assets											(15,129	)
Integration costs											(334	)
Interest expense, other expense, and gains on investments											(5,451	)
Income before income taxes										$	33,191

Schedule of Net Long-lived Tangible Assets by Location

Net long-lived tangible assets by location as of December 31, 2023 and 2022 are as follows (in thousands):

	2023		2022
United States	$	48,001	$	60,631
United Kingdom		8,194		8,678
Europe (excluding United Kingdom)		186		319
Asia Pacific		2,742		3,550
Total	$	59,123	$	73,178

Schedule of Revenues by Geographic Destination, Based on Location Products and Services and as a Percentage of Total Revenues

Revenues by geographic destination, based on the location products and services are consumed, and as a percentage of total revenues for the years ended December 31, 2023, 2022, and 2021 are as follows (dollars in thousands):

	2023		2022		2021
United States	$	373,483	$	426,041	$	381,662
Europe (excluding United Kingdom)		37,912		36,664		41,264
United Kingdom		21,311		20,079		21,913
Canada		16,416		20,759		17,213
Asia Pacific		23,604		26,548		26,768
Other		8,053		7,696		5,495
Total	$	480,779	$	537,787	$	494,315

	2023			2022			2021
United States		78	%		79	%		77	%
Europe (excluding United Kingdom)		8			7			9
United Kingdom		4			4			5
Canada		3			4			3
Asia Pacific		5			5			5
Other		2			1			1
Total		100	%		100	%		100	%