Restructuring (Tables)

3 Months Ended

Mar. 31, 2016

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

The following table summarizes the restructuring accrual activity during the three months ended March 31, 2016:

	Balance as of January 1, 2016		Expenses, Net		Cash			Noncash			Balance as of March 31, 2016
	(in thousands)
Employee severance and other personnel benefits:
2014 European workforce reduction	$	523	$	—	$	—		$	—		$	523
2014 European leases and equipment write-off	58		—		(22		)	(3		)	33
Total	$	581	$	—	$	(22	)	$	(3	)	$	556