Pension and Other Postretirement Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2016

Pension and Other Postretirement Benefit Plans [Abstract]

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

Amounts recognized for the Dutch Plan in the Consolidated Balance Sheets for the years ended December 31, 2016 and 2015 consist of (in thousands):

	2016			2015
Deferred tax asset	$	2,328		$	2,660
Other long-term liabilities	9,948			9,643
Accumulated other comprehensive loss	(9,169		)	(9,540		)

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

The following table summarizes the change in the projected benefit obligation and the fair value of plan assets for the Dutch Plan for the years ended December 31, 2016 and 2015 (in thousands):

	2016			2015
Projected Benefit Obligation:
Projected benefit obligation at beginning of year	$	50,759		$	59,338
Service cost	1,456			1,787
Interest cost	1,329			1,192
Benefits paid	(1,139		)	(982		)
Administrative expenses	(31		)	(169		)
Actuarial (gain) loss, net	5,225			(4,416		)
Unrealized (gain) loss on foreign exchange	(1,517		)	(5,991		)
Projected benefit obligation at end of year	$	56,082		$	50,759
Fair Value of Plan Assets:
Fair value of plan assets at beginning of year	$	41,116		$	47,528
Increase (decrease) in plan asset value	6,328			(2,279		)
Employer contributions	1,118			1,829
Benefits paid	(1,139		)	(982		)
Administrative expenses	(31		)	(169		)
Unrealized gain (loss) on foreign exchange	(1,258		)	(4,811		)
Fair value of plan assets at end of year	$	46,134		$	41,116
Under-funded status of the plan at end of the year	$	(9,948	)	$	(9,643	)
Accumulated Benefit Obligation	$	47,980		$	43,969

Schedule of Net Benefit Costs [Table Text Block]

The components of net periodic pension cost for the Dutch Plan under this plan for the years ended December 31, 2016, 2015, and 2014 included (in thousands):

	2016			2015			2014
Service cost	$	1,456		$	1,787		$	1,445
Interest cost	1,329			1,192			1,756
Expected return on plan assets	(1,117		)	(986		)	(1,303		)
Unrecognized pension asset, net	—			(96		)	(87		)
Prior service cost	(81		)	(85		)	7
Unrecognized net actuarial loss	593			727			540
Net periodic pension cost	$	2,180		$	2,539		$	2,358

Schedule of Assumptions Used [Table Text Block]

The following actuarial assumptions were used to determine the actuarial present value of our projected benefit obligation and the net periodic pension costs for the Dutch Plan at December 31, 2016 and 2015:

	2016	2015
Weighted average assumed discount rate	1.90%	2.60%
Expected long-term rate of return on plan assets	1.90%	2.60%
Weighted average rate of compensation increase	2.75%	3.00%

Schedule of Expected Benefit Payments [Table Text Block]

Expected benefit payments to eligible participants under this plan for the next five years are as follows (in thousands):

2017	$	1,118
2018	$	1,156
2019	$	1,169
2020	$	1,275
2021	$	1,356
Succeeding five years	$	8,147