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Receivables Schedule of Valuation and Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of period $ 43,028 $ 48,119 $ 25,531
Additions charged to costs and expenses 29,248 5,060 2,317
Additions through acquisitions 0 0 34,159
Deductions (19,490) (10,151) (13,888)
Balance at end of period $ 52,786 $ 43,028 $ 48,119