Transactions with Related Party Expense Disclosures (Details) (Affiliated Entity [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014 Rate	Jun. 30, 2013	Jun. 29, 2014 Rate	Jun. 30, 2013
Related Party Transaction [Line Items]
Related Party Transaction, Royalty Fee Rate	4.50%		4.50%
Royalty Expense	$ 7.1	$ 7.3	$ 13.4	$ 13.6
Related Party Transaction, Advertising Fee Rate	4.00%		4.00%
Advertising Expense	7.1	7.8	13.5	14.7
Leases, Number of Leased Restaurant Properties	291		291
Operating Leases, Rent Expense	$ 6.5	$ 6.8	$ 12.9	$ 13.4
Property Leases Identical to BKC's Lease with Third Party [Member]
Related Party Transaction [Line Items]
Leases, Number of Leased Restaurant Properties	194		194