Facility Closure Reserves (Reserve Balances were Classified in the Consolidated Balance Sheets) (Details) (USD $) In Thousands	Jun. 25, 2011	Dec. 25, 2010
Other long-term liabilities	$ 199,936	$ 213,496
Total	59,205	61,673
Facility Closure [Member]
Other accrued liabilities	17,366
Other long-term liabilities	41,839
Total	$ 59,205