Pensions and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2015

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, 2015 and 2014 (in thousands):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
Service cost	$	453		$	361		$	1,356		$	1,103
Interest cost	301			439			904			1,341
Expected return on plan assets	(249		)	(326		)	(748		)	(995		)
Amortization of transition asset	(22		)	(21		)	(66		)	(65		)
Amortization of prior service cost	(21		)	2			(59		)	5
Amortization of actuarial loss	181			135			548			405
Net periodic pension cost	$	643		$	590		$	1,935		$	1,794