Pensions and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

The following table summarizes the components of net periodic pension cost under the Dutch Plan for the three and nine months ended September 30, 2016 and 2015 (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2016			2015			2016			2015
Service cost	$	364		$	453		$	1,097		$	1,356
Interest cost	332			301			1,001			904
Expected return on plan assets	(279		)	(249		)	(841		)	(748		)
Amortization of transition asset	—			(22		)	—			(66		)
Amortization of prior service cost	(20		)	(21		)	(58		)	(59		)
Amortization of actuarial loss	148			181			444			548
Net periodic pension cost	$	545		$	643		$	1,643		$	1,935