Restructuring Charges (Tables)

9 Months Ended

Sep. 30, 2017

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, 2016	$	2,274		$	1,092		$	416		$	3,782
Restructuring charges		442			237			138			817
Cash payments		(1,048	)		(449	)		(451	)		(1,948	)
Adjustment to liability		—			—			2			2
Balance at September 30, 2017	$	1,668		$	880		$	105		$	2,653