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Retirement Plans (Details) (USD $)
 3 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Minimum
    
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]    
Estimated future employer contributions to defined benefit plans in current fiscal year $ 8,000,000  
Maximum
    
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]    
Estimated future employer contributions to defined benefit plans in current fiscal year 10,000,000  
U.S. Pension Plans
    
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]    
Interest cost 1,595,000 1,419,000
Expected return on plan assets (2,308,000) (2,038,000)
Net amortization: Net actuarial loss (gain) 485,000 881,000
Net periodic pension (benefit) cost (228,000) 262,000
Defined benefit plan, contributions by employer 1,000,000  
U.S. Retiree Healthcare Plan
    
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]    
Service cost 199,000 238,000
Interest cost 118,000 85,000
Expected return on plan assets (107,000) (88,000)
Net amortization: Prior service credit (13,000) (13,000)
Net amortization: Net actuarial loss (gain) (4,000)  
Net periodic pension (benefit) cost 193,000 222,000
Non-U.S. Pension Plans
    
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]    
Service cost 1,212,000 1,152,000
Interest cost 592,000 499,000
Expected return on plan assets (392,000) (228,000)
Net amortization: Prior service credit (47,000) (62,000)
Net amortization: Net actuarial loss (gain) 97,000 131,000
Net periodic pension (benefit) cost $ 1,462,000 $ 1,492,000