Schedule II - Valuation and Qualifying Accounts Schedule II - Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2016

Valuation and Qualifying Accounts [Abstract]

Schedule II Valuation of Qualifying Accounts [Table Text Block]

		Balance at Beginning of Year			Additions Charged to Income		Deductions From Reserves		Balance at End of Year
	(Amounts are in thousands)
Year Ended December 31, 2016
Reserves not deducted from assets:
Self-insurance reserves:
Current			$	135,865		341,699		338,010		139,554
Noncurrent			214,474			1,651		—		216,125
			$	350,339		343,350		338,010		355,679
Year Ended December 26, 2015
Reserves not deducted from assets:
Self-insurance reserves:
Current			$	151,153		300,336		315,624		135,865
Noncurrent			213,213			1,261		—		214,474
			$	364,366		301,597		315,624		350,339
Year Ended December 27, 2014
Reserves not deducted from assets:
Self-insurance reserves:
Current			$	150,860		317,734		317,441		151,153
Noncurrent			205,181			8,032		—		213,213
			$	356,041		325,766		317,441		364,366