Retirement Plans (Tables)

6 Months Ended

Jun. 29, 2013

Compensation and Retirement Disclosure [Abstract]

Components of defined pension plan costs

Components of net periodic benefit cost for the Company’s defined benefit pension plans and OPEB plans are as follows (in thousands):

	Quarters Ended
	June 29, 2013								June 30, 2012
	Domestic Plans			Foreign Plans			OPEB Plans		Domestic Plans			Foreign Plans			OPEB Plans
Net periodic benefit cost:
Service cost	$	268		$	704		$	3	$	178		$	594		$	3
Interest cost	721			945			49		761			963			62
Expected return on assets	(887		)	(979		)	—		(813		)	(914		)	—
Amortization of unrecognized:
Prior service costs	—			5			—		—			6			—
Cumulative actuarial net loss	49			131			2		2			11			—
Net periodic benefit cost	$	151		$	806		$	54	$	128		$	660		$	65

	Six Months Ended
	June 29, 2013								June 30, 2012
	Domestic Plans			Foreign Plans			OPEB Plans		Domestic Plans			Foreign Plans			OPEB Plans
Net periodic benefit cost:
Service cost	$	535		$	1,421		$	7	$	356		$	1,203		$	7
Interest cost	1,442			1,907			99		1,521			1,950			123
Expected return on assets	(1,774		)	(1,976		)	—		(1,626		)	(1,851		)	—
Amortization of unrecognized:
Prior service costs	—			10			—		—			11			—
Cumulative actuarial net loss	98			264			4		4			22			—
Net periodic benefit cost	$	301		$	1,626		$	110	$	255		$	1,335		$	130