Restructuring and Severance (Tables)

6 Months Ended

Jun. 30, 2018

Restructuring And Related Activities [Abstract]

Restructuring and Severance

Restructuring and severance activities during the six months ended June 30, 2018 and 2017 were as follows (in thousands):

	Six Months Ended June 30,
	2018			2017
Balance at beginning of period	$	—		$	237
Restructuring expense incurred for the period		368			—
Payments and non-cash item adjustment during the period		(368	)		(173	)
Balance at end of period	$	—		$	64