Financing Obligations (Details) (USD $) In Millions, unless otherwise specified	2 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Dec. 31, 2011		May 19, 2008 Sale Leaseback Transaction Agreement for Properties properties	Jun. 30, 2008 Master Lease Agreement [Member]	Dec. 31, 2011 Master Lease Agreement [Member] properties	Jul. 31, 2008 Support Center Sale Leaseback Agreement [Member]	Dec. 31, 2011 2012 [Member] payments	Dec. 31, 2011 2015 [Member] payments
Sale Leaseback Transaction [Line Items]
2012	$ 16.6	[1]
2013	18.4
2014	18.6
2015	20.2	[1]
2016	18.6
Thereafter	217.9
Total minimum lease payments	310.3
Less interest	(143.7)
Total financing obligations	166.6
Less current portion	(3.9)	[2]
Long-term financing obligations	162.7
Number of Monthly Leaseback Obligation Payments in Fiscal Year							11	13
Parcels of Real Property Under Sale Leaseback Transaction			181		181
Sale Leaseback Transaction, Gross Proceeds				337.2		39.0
Number of Options to Extend Initial Sale Leaseback Term				4
Sales Leaseback Term				20 years		15 years
Extensions Period for Option to Extend Sale Leaseback Initial Term, In Years				5 years
Properties Assigned to Franchisee or Released From Lessor					80
Reduction in Property and Equipment and Financing Obligations as a Result of Sales Transactions	$ 34.0				$ 149.8

[1] Due to the varying closing date of the Company's fiscal year, 11 monthly payments will be made in fiscal 2012 and 13 monthly payments will be made in fiscal 2015.

[2] Included in current maturities of capital lease and financing obligations on the consolidated balance sheet.