Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Dec. 25, 2016
Accounts Receivable Allowances [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 14,542	$ 16,815	$ 13,485
Additions charged to operating costs and other	11,830	11,747	17,154
Deductions	13,123	14,020	13,824
Balance at end of period	13,249	14,542	16,815
Valuation Allowance for Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	0	0	36,204
Additions charged to operating costs and other	0	0	0
Deductions	0	0	36,204
Balance at end of period	$ 0	$ 0	$ 0