Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Components of the net periodic benefit cost

The components of the net periodic benefit cost for the three and nine months ended September 30, 2013 and 2012 were as follows:

	Three Months Ended
	September 30
	Pension Benefits												Postretirement
	U.S. Plans						Non-U.S. Plans						Medical Benefits
	2013			2012			2013			2012			2013			2012
Service cost	$	85		$	175		$	34		$	33		$	39		$	34
Interest cost	221			485			122			131			110			140
Expected return on plan assets	(363		)	(569		)	(116		)	(118		)	—			—
Amortization of net actuarial loss	217			281			—			—			49			17
Amortization of prior service cost	9			94			(353		)	38			(25		)	(145		)
Foreign currency	—			—			(56		)	(10		)	—			—
Net periodic cost	$	169		$	466		$	(369	)	$	74		$	173		$	46

	Nine Months Ended
	September 30
	Pension Benefits												Postretirement
	U.S. Plans						Non-U.S. Plans						Medical Benefits
	2013			2012			2013			2012			2013			2012
Service cost	$	517		$	514		$	100		$	99		$	115		$	104
Interest cost	1,352			1,446			365			392			332			419
Expected return on plan assets	(2,183		)	(1,709		)	(347		)	(353		)	—			—
Amortization of net actuarial loss	1,313			849			—			—			150			51
Amortization of prior service cost	55			286			(192		)	115			(77		)	(435		)
Foreign currency	—			—			(27		)	13			—			—
Net periodic cost	$	1,054		$	1,386		$	(101	)	$	266		$	520		$	139