Retirement Plans (Tables)

6 Months Ended

Jul. 04, 2015

Compensation and Retirement Disclosure [Abstract]

Components of defined pension plan costs

Components of net periodic benefit cost for the Company’s Domestic Plans, Foreign Plans and OPEB Plans are as follows (in thousands):

	Quarters Ended
	July 4, 2015									June 28, 2014
	Domestic Plans			Foreign Plans			OPEB Plans			Domestic Plans			Foreign Plans			OPEB Plans
Service cost	$	331		$	649		$	2		$	323		$	606		$	3
Interest cost	806			802			44			788			924			49
Expected return on assets	(973		)	(952		)	—			(1,018		)	(1,095		)	—
Amortization of unrecognized:
Prior service costs (credits)	3			5			(2		)	3			5			(2		)
Cumulative actuarial net loss (gains)	104			60			(5		)	—			14			(11		)
Net periodic benefit cost	$	271		$	564		$	39		$	96		$	454		$	39

	Six Months Ended
	July 4, 2015									June 28, 2014
	Domestic Plans			Foreign Plans			OPEB Plans			Domestic Plans			Foreign Plans			OPEB Plans
Service cost	$	662		$	1,290		$	6		$	645		$	1,197		$	6
Interest cost	1,612			1,593			87			1,576			1,827			98
Expected return on assets	(1,946		)	(1,890		)	—			(2,036		)	(2,164		)	—
Amortization of unrecognized:
Prior service costs (credits)	6			11			(4		)	6			10			(4		)
Cumulative actuarial net loss (gains)	208			119			(10		)	—			28			(22		)
Net periodic benefit cost	$	542		$	1,123		$	79		$	191		$	898		$	78