Restructuring and Severance (Tables)

3 Months Ended

Mar. 31, 2018

Restructuring And Related Activities [Abstract]

Restructuring and Severance

Restructuring and severance activities during the three months ended March 31, 2018 and 2017 were as follows (in thousands):

	Three Months Ended March 31,
	2018			2017
Balance at beginning of period	$	—		$	237
Restructuring expense incurred for the period		110			—
Payments and non-cash item adjustment during the period		(110	)		(103	)
Balance at end of period	$	—		$	134