Retirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2016

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

Components of the net periodic (benefit) cost

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