Pensions and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 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 six months ended June 30, 2016 and 2015 (in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2016			2015			2016			2015
Service cost	$	375		$	440		$	733		$	903
Interest cost	342			294			669			603
Expected return on plan assets	(287		)	(243		)	(562		)	(499		)
Amortization of transition asset	—			(22		)	—			(44		)
Amortization of prior service cost	(19		)	(19		)	(38		)	(38		)
Amortization of actuarial loss	148			184			296			367
Net periodic pension cost	$	559		$	634		$	1,098		$	1,292