Acquisition (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	May 30, 2012
Business Acquisition [Line Items]
Restaurants Acquired	278
Equity ownership	28.90%
Purchase price, cash on hand and inventory	3.8
Purchase price, franchise fees	9.4
Purchase price, ROFR	3.6
Number of States for ROFR		20
Loan, Payment Period		5 years
Restaurants to be remodeled		455
Purchase price	74.5
Purchase price, equity	57711
Purchase price, cash	16.8
Convertible Preferred Stock, Common Shares Issuable upon Conversion		9,414,580
Sale of Stock, Price Per Share		$ 6.13
Property Leases Owned in Fee by BKC [Member]
Business Acquisition [Line Items]
Restaurants Acquired	81
Property Leases Identical to BKC's Lease with Third Party [Member]
Business Acquisition [Line Items]
Restaurants Acquired	197