Acquisitions and Purchase Accounting (Details) (USD $) In Thousands, unless otherwise specified	Sep. 25, 2012	Feb. 20, 2012
Allocation of purchase price
Cash and cash equivalents	$ 11,962
Accounts receivable	8,041
Inventories	7,296	500
Prepaid expenses and other current assets	3,399
Income taxes receivable	698
Deferred income tax asset	7,292
Facilities and equipment	138,952
Franchise rights	627,000
Goodwill	289,144
Other assets	24,686
Accounts payable	(24,631)
Other accrued liabilities	(59,941)
Other deferred items	(41,402)
Insurance reserves	(13,969)
Deferred income tax liability	(210,791)
Total consideration	$ 767,736