Other Noncurrent Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Jan. 01, 2011
OTHER NONCURRENT LIABILITIES [Abstract]
Accrued pension liability	$ 27,318	$ 18,068
Reserve for self insurance, litigation, environmental and tax matters	28,810	26,756
Other	2,117	5,936
Total other noncurrent liabilities	$ 58,245	$ 50,760