Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 25, 2013	Dec. 25, 2012
Acquired Indefinite-lived Intangible Assets [Line Items]
Franchise rights, less accumulated amortization	$ 21,219	$ 14,066
Accumulated depreciation	56,564	39,123
Membership interests, shares authorized (shares)	1,000,000	1,000,000
Membership interests, shares issued (shares)	1,000,000	1,000,000
Membership interests, shares outstanding (shares)	1,000,000	1,000,000
Franchise Rights [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Franchise rights, less accumulated amortization	$ 23,322	$ 15,535