Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
ACCRUED EXPENSES [Abstract]
Compensation and benefits	$ 38,902	$ 36,087
Utilities and sewage	6,802	5,114
Accrued income, ad valorem, and franchise taxes	3,651	4,817
Reserve for self insurance, litigation, environmental and tax matters (Note 19)	7,878	8,810
Medical claims liability	5,960	4,671
Accrued Operating Expenses	9,512	3,258
Accrued Acquisition Costs	4,306	0
Accrued financing fee	18,592	0
Other accrued expense	17,571	14,831
Accrued expenses	$ 113,174	$ 77,588