Pension and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Contributions for Pension and Other Postretirement Benefits

Contributions were as follows:

	Three Months Ended March 31,
	2017		2016
Foreign defined benefit pension plans	$	424	$	430
Other postretirement benefits (e.g. net payments)		275		241
U.K. defined contribution pension plan		65		62
U.S. defined contribution plan		650		503

Net Periodic Pension and Other Postretirement Costs

Net periodic pension and other postretirement costs include the following components:

	Three Months Ended March 31,
U.S. Defined Benefit Pension Plans	2017			2016
Service cost	$	411		$	346
Interest cost		2,098			2,258
Expected return on plan assets		(3,127	)		(3,011	)
Amortization of prior service cost		13			105
Amortization of actuarial loss		936			1,128
Net benefit costs	$	331		$	826
	Three Months Ended March 31,
Foreign Defined Benefit Pension Plans	2017			2016
Service cost	$	90		$	31
Interest cost		445			568
Expected return on plan assets		(538	)		(647	)
Amortization of actuarial loss		181			176
Net benefit costs	$	178		$	128
	Three Months Ended March 31,
Other Postretirement Benefit Plans	2017			2016
Service cost	$	172		$	158
Interest cost		172			200
Amortization of prior service cost		(405	)		(258	)
Amortization of actuarial loss		8			37
Net benefit costs	$	(53	)	$	137