Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2017

Retirement Plans [Abstract]

Defined Benefit Plan, Net Periodic Benefit Cost

The summary of the components of net periodic pension costs for the plans for the three and nine months endedSeptember 30, 2017 and October 1, 2016 is as follows (in thousands):

		Three Months Ended
		September 30, 2017						October 1, 2016
		U.S.		U.S. Retiree		Non-U.S.		U.S.		U.S. Retiree		Non-U.S.
		Pension		Healthcare		Pension		Pension		Healthcare		Pension
		Plans		Plan		Plans		Plans		Plan		Plans
Service cost		$	113	$	137	$	1,311	$	94	$	116	$	1,253
Interest cost			1,707		155		386		1,710		135		423
Expected return on plan
	assets		(2,574)		(146)		(434)		(2,392)		(130)		(401)
Net amortization:
	Prior service credit		-		-		(47)		-		-		(51)
	Net actuarial loss		693		-		248		693		-		190
Net periodic pension
	(benefit) cost	$	(61)	$	146	$	1,464	$	105	$	121	$	1,414

		Nine Months Ended
		September 30, 2017						October 1, 2016
		U.S.		U.S. Retiree		Non-U.S.		U.S.		U.S. Retiree		Non-U.S.
		Pension		Healthcare		Pension		Pension		Healthcare		Pension
		Plans		Plan		Plans		Plans		Plan		Plans
Service cost		$	338	$	410	$	3,802	$	282	$	348	$	3,721
Interest cost			5,122		464		1,112		5,200		405		1,273
Expected return on plan
	assets		(7,724)		(440)		(1,250)		(7,226)		(390)		(1,206)
Net amortization:
	Prior service credit		-		-		(140)		-		-		(145)
	Net actuarial loss		2,078		-		714		2,027		-		570
Net periodic pension
	(benefit) cost	$	(186)	$	434	$	4,238	$	283	$	363	$	4,213