Restructuring Charges (Tables)

12 Months Ended

Dec. 31, 2020

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, 2017	$	1,551		$	807		$	191		$	2,549
Restructuring charges		1,457			—			130			1,587
Cash payments		(1,379	)		(156	)		(181	)		(1,716	)
Adjustment to liability		410			(451	)		(128	)		(169	)
Balance at December 31, 2018		2,039			200			12			2,251
Restructuring charges		6,071			1,817			492			8,380
Cash payments		(5,169	)		(752	)		(272	)		(6,193	)
Adjustment to liability		(6	)		74			7			75
Balance at December 31, 2019		2,935			1,339			239			4,513
Restructuring charges		6,563			5,784			1,093			13,440
Cash payments		(7,051	)		(2,573	)		(1,201	)		(10,825	)
Non-cash items(1)		—			(1,789	)		—			(1,789	)
Adjustment to liability		(7	)		5			(107	)		(109	)
Balance at December 31, 2020	$	2,440		$	2,766		$	24		$	5,230

(1) Represents the impact related to the closure and liquidation of GES’ United Kingdom-based audio-visual services business during the year ended December 31, 2020.