v2.4.0.6
Leasing Arrangements - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Location
Dec. 31, 2010
Location
Dec. 31, 2009
Location
Leases Disclosure [Line Items]      
Number of Restaurants 33,510 32,737 32,478
Lease term 20 years    
Minimum
     
Leases Disclosure [Line Items]      
Escalation timing 1 year    
Maximum
     
Leases Disclosure [Line Items]      
Escalation timing 5 years    
Ground Leases
     
Leases Disclosure [Line Items]      
Number of Restaurants 14,139    
Company-operated
     
Leases Disclosure [Line Items]      
Number of Restaurants 6,435 6,399 6,262
Rents in excess of minimum rents $ 165.2 $ 142.5 $ 129.6
Franchised
     
Leases Disclosure [Line Items]      
Number of Restaurants 27,075 26,338 26,216
Rents in excess of minimum rents $ 173.4 $ 167.3 $ 154.7