Commitments and Contingencies - Additional Information (Detail)	12 Months Ended							12 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2011 USD ($) Plaintiff	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Jun. 14, 2011 USD ($)	Dec. 31, 2011 Franchise Loan Program USD ($)	Dec. 31, 2011 Other Debt Facilities USD ($)	Dec. 31, 2011 Marketing and Advertising Expense USD ($)	Dec. 31, 2011 Franchise Loan Facility CAD	Dec. 31, 2011 Franchise Loan Facility USD ($)	Dec. 31, 2011 Franchise Loan Facility Amendment CAD	Dec. 31, 2011 Franchise Loan Facility Amendment USD ($)	Dec. 31, 2011 Minimum	Dec. 31, 2011 Maximum
Commitments and Contingencies Disclosure [Line Items]
Leases of warehouse and retail store space under operating lease, expiring time	2028
Rental expense	$ 93,600,000	$ 96,100,000	$ 88,100,000
Sublease income	3,100,000	2,800,000	1,500,000
Future sublease rental income in one year	4,700,000
Future sublease rental income in two years	3,700,000
Future sublease rental income in three years	3,000,000
Future sublease rental income in four years	2,600,000
Future sublease rental income in five years	2,100,000
Future sublease rental income in five years and there after	8,800,000
Accrued Litigation Expense	41,720,000	1,677,000
Required employee service period to be eligible for 401(k) savings plan	1 year
Maximum 401 (K) plan contribution rates as percentage of employees earnings	100.00%
Employer 401 (k) matching contribution to employee, Maximum	50.00%
Initial Employer 401(K) Matching Contribution to Employee	4.00%
Compensation expense related to 401(k) savings plan	891,000	841,000	844,000
Renewal options of leases for additional periods												1 year	20 years
Leases of transportation and computer equipment under operating leases, expiring period													5 years
Portion that Company might be obligated to repay in the event franchisees defaulted	128,800,000	121,000,000			108,500,000	20,300,000
Debt instrument, maturity date										May 16, 2012
Loan facility maximum Canadian sub facility commitment amount								25,000,000		35,000,000
Line of Credit Facility, Maximum Borrowing Capacity									60,000,000		150,000,000
Number of Plaintiffs	247
Accrued probable losses associated with litigation	41,500,000
Insurance Coverage for litigation expenses	5,000,000
Loss contingency, compensatory damages awarded				13,500,000
Loss contingency, punitive damages awarded				80,000,000
Loss contingency, damages awarded in excess of maximum award permitted by law				53,700,000
Loss contingency, damages awarded, final judgment				39,800,000
Bond required to be posted pending post trial motion				5,000,000
Non cancellable commitments							38,700,000
Non cancellable commitments due in 2012							19,500,000
Non cancellable commitments due in 2013							17,300,000
Non cancellable commitments due in 2014							$ 1,900,000