Employee Benefit Plans (Components of Net Periodic Benefit Cost (Credit)) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Oct. 04, 2015	Jun. 28, 2015	Sep. 28, 2014	Oct. 04, 2015	Sep. 28, 2014
Foreign Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer				$ 6,500	$ 2,800
Defined Benefit Pension Benefits [Member]
Components of net periodic benefit cost (credit)
Service cost	$ 1,083		$ 1,030	3,274	3,094
Interest cost	5,176		5,914	15,602	17,761
Expected return on plan assets	(6,513)		(6,277)	(19,535)	(18,820)
Defined Benefit Plan, Curtailments		$ (816)		(816)	0
Defined Benefit Plan, Actuarial Gain (Loss)		$ (821)		(821)	0
Amortization of prior service	(59)		(72)	(182)	(214)
Net periodic benefit cost (credit)	(313)		595	(836)	1,821
Postretirement Medical Benefits [Member]
Components of net periodic benefit cost (credit)
Service cost	27		24	81	72
Interest cost	36		39	108	116
Expected return on plan assets	(265)		(241)	(797)	(723)
Defined Benefit Plan, Curtailments				0	0
Defined Benefit Plan, Actuarial Gain (Loss)				0	0
Amortization of prior service	0		0	0	0
Net periodic benefit cost (credit)	$ (202)		$ (178)	(608)	$ (535)
United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer				$ 20,000