Retirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2015

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

Components of the net periodic cost (benefit)

The components of the net periodic cost (benefit) for the three and six months ended June 30, 2015 and 2014 were as follows:

	Three Months Ended
	June 30
	Pension Benefits												Postretirement
	U.S. Plans						Non-U.S. Plans						Medical Benefits
	2015			2014			2015			2014			2015			2014
Service cost	$	134		$	123		$	36		$	38		$	17		$	32
Interest cost	423			488			125			134			87			118
Expected return on plan assets	(655		)	(672		)	(146		)	(131		)	—			—
Amortization of net actuarial loss (gain)	192			30			—			—			(35		)	(11		)
Amortization of prior service cost (benefit)	10			10			65			47			—			(1		)
Foreign currency	—			—			118			(2		)	—			—
Net periodic cost (benefit)	$	104		$	(21	)	$	198		$	86		$	69		$	138

	Six Months Ended
	June 30
	Pension Benefits								Postretirement
	U.S. Plans				Non-U.S. Plans				Medical Benefits
	2015		2014		2015		2014		2015	2014
Service cost	240		247		72		76		48	64
Interest cost	855		982		248		266		196	249
Expected return on plan assets	(1,307	)	(1,342	)	(290	)	(260	)	—	—
Amortization of net actuarial loss	418		74		—		—		—	—
Amortization of prior service cost (benefit)	21		21		130		93		—	(3	)
Foreign currency	—		—		35		16		—	—
Net periodic cost (benefit)	227		(18	)	195		191		244	310