Restructuring Charges (Tables)

12 Months Ended

Dec. 31, 2023

Restructuring and Related Activities [Abstract]

Changes to Restructuring Liability by Major Restructuring Activity

Changes to the restructuring liability by major restructuring activity are as follows:

	GES						Other Restructurings
(in thousands)	Severance & Employee Benefits			Facilities			Severance & Employee Benefits			Total
Balance at December 31, 2020	$	2,440		$	2,766		$	24		$	5,230
Restructuring charges		1,829			4,107			130			6,066
Cash payments		(2,302	)		(3,506	)		(91	)		(5,899	)
Non-cash items(1)		—			(1,906	)		—			(1,906	)
Adjustment to liability		9			(28	)		(37	)		(56	)
Balance at December 31, 2021		1,976			1,433			26			3,435
Restructuring charges		624			2,351			84			3,059
Cash payments		(988	)		(863	)		(83	)		(1,934	)
Non-cash items(1)		—			(1,167	)		—			(1,167	)
Adjustment to liability		(3	)		64			(15	)		46
Balance at December 31, 2022		1,609			1,818			12			3,439
Restructuring charges		648			327			199			1,174
Cash payments		(623	)		(807	)		(213	)		(1,643	)
Adjustment to liability		—			40			2			42
Balance at December 31, 2023	$	1,634		$	1,378		$	—		$	3,012

(1)Represents non-cash adjustments related to a write-down of certain ROU assets and leasehold improvements as a result of vacating certain facilities prior to the lease term during the year ended December 31, 2022 and a write down of certain ROU assets as a result of vacating certain facilities prior to the lease term during the year ended December 31, 2021.