Restructuring Charges (Tables)

9 Months Ended

Sep. 30, 2017

Restructuring And Related Activities [Abstract]

Reconciliation of Beginning and Ending Liability Balances for Restructuring Charges

A reconciliation of beginning and ending liability balances for the restructuring charges is as follows (in thousands):

	2016			2015
Description	Restructuring			Restructuring			Total
Accrual - January 1, 2017	$	209		$	1,167		$	1,376
Costs paid or settled		(209	)		(805	)		(1,014	)
Accrual - September 30, 2017	$	—		$	362		$	362