Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016
ACCRUED EXPENSES [Abstract]
Compensation and benefits	$ 102,474	$ 83,355
Utilities and sewage	18,077	16,446
Accrued income, ad valorem, and franchise taxes	30,546	19,179
Reserve for self insurance, litigation, environmental and tax matters (Note 19)	13,101	12,479
Medical claims liability	8,502	5,070
Accrued operating expenses	61,230	55,128
Accrued interest payable	16,125	15,961
Liabilities for sale	19,172	0
Other accrued expense	44,396	35,178
Accrued expenses	$ 313,623	$ 242,796