Retirement Benefit Plans

6 Months Ended

Jun. 30, 2016

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Retirement Benefit Plans

10. Retirement Benefit Plans

Our defined benefit pension plans and postretirement medical plan are described in Note 13 of our annual report on Form 10-K for the year ended December 31, 2015. We have contributed $104 and $185 during the second quarter of 2016 and $209 and $464 during the first six months of 2016 to our pension plans and to our postretirement medical plan, respectively.

The components of the net periodic (benefit) cost for the three and six months ended June 30, 2016 and 2015 were as follows:

	Three Months Ended
	June 30
	Pension Benefits												Postretirement
	U.S. Plans						Non-U.S. Plans						Medical Benefits
	2016			2015			2016			2015			2016		2015
Service cost	$	97		$	134		$	36		$	36		$	24	$	17
Interest cost	415			423			103			125			100		87
Expected return on plan assets	(603		)	(655		)	(97		)	(146		)	—		—
Amortization of net actuarial loss (gain)	8			192			—			—			—		(35		)
Amortization of prior service cost	10			10			32			65			—		—
Foreign currency	—			—			(16		)	118			—		—
Net periodic (benefit) cost	$	(73	)	$	104		$	58		$	198		$	124	$	69

	Six Months Ended
	June 30
	Pension Benefits												Postretirement
	U.S. Plans						Non-U.S. Plans						Medical Benefits
	2016			2015			2016			2015			2016		2015
Service cost	$	177		$	240		$	72		$	72		$	48	$	48
Interest cost	830			855			208			248			199		196
Expected return on plan assets	(1,200		)	(1,307		)	(194		)	(290		)	—		—
Amortization of net actuarial loss	17			418			—			—			—		—
Amortization of prior service cost	21			21			64			130			—		—
Foreign currency	—			—			24			35			—		—
Net periodic (benefit) cost	$	(155	)	$	227		$	174		$	195		$	247	$	244