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Retirement Plans (Schedule of Expected Benefit Payments) (Details)
$ in Thousands
Jan. 02, 2016
USD ($)
Pensions [Member]  
Expected Future Benefit Payments [Abstract]  
2016 $ 17,867
2017 18,122
2018 18,609
2019 19,001
2020 19,356
2021 through 2025 101,485
Supplemental Employee Retirement Plans [Member]  
Expected Future Benefit Payments [Abstract]  
2016 2,006
2017 1,870
2018 1,707
2019 1,642
2020 1,574
2021 through 2025 6,680
Other Postretirement Benefit Plans [Member]  
Expected Future Benefit Payments [Abstract]  
2016 133
2017 129
2018 126
2019 122
2020 118
2021 through 2025 $ 526