Restructuring Charges (Tables)

9 Months Ended

Sep. 30, 2018

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		869			—			130			999
Cash payments		(1,052	)		(97	)		(181	)		(1,330	)
Adjustment to liability		438			(451	)		(128	)		(141	)
Balance at September 30, 2018	$	1,806		$	259		$	12		$	2,077