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Employee Benefit Plans (Schedule of Expected Benefit Payments, Other Postretirement Benefits) (Details) - USD ($)
$ in Thousands
Dec. 30, 2018
Dec. 31, 2017
Foreign Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
2018   $ 11,786
2019   12,166
2020   12,566
2021   13,151
2022   13,275
2023-2026   71,963
UNITED STATES    
Defined Benefit Plan Disclosure [Line Items]    
2018   18,593
2019   18,860
2020   19,125
2021   19,392
2022   19,630
2023-2026   97,295
Other Postretirement Benefit Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
2018   147
2019   166
2020   178
2021   195
2022   211
2023-2026   $ 1,153
Scenario, Forecast [Member] | Foreign Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year $ 8,800