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Benefit Plans (Estimated Benefit Payments Over Next Ten Years) (Details)
$ in Thousands
Dec. 30, 2016
USD ($)
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]  
2017 $ 261
2018 191
2019 266
2020 216
2021 251
2022-2026 $ 1,888