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Postretirement Benefits Expected Future Benefit Payments (Details)
$ in Thousands
12 Months Ended
Jan. 03, 2016
USD ($)
Compensation and Retirement Disclosure [Abstract]  
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year $ 100
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months 100
Defined Benefit Plan, Expected Future Benefit Payments, Year Two 126
Defined Benefit Plan, Expected Future Benefit Payments, Year Three 152
Defined Benefit Plan, Expected Future Benefit Payments, Year Four 155
Defined Benefit Plan, Expected Future Benefit Payments, Rolling Year Five 162
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter $ 890