Commitments and Contingencies - Additional Information (Details)	3 Months Ended	1 Months Ended			3 Months Ended
	Mar. 31, 2015 USD ($)	Jan. 31, 2014 RIMCO right	Mar. 31, 2015 Marketing and Advertising Expense USD ($)	Oct. 26, 2010 Margaret Korrow	Mar. 31, 2015 Minimum USD ($)	Mar. 31, 2015 Maximum USD ($)	Mar. 31, 2015 Maximum Lomi Price USD ($)	Mar. 31, 2015 Amendment [Member] Franchise Loan Facility [Member] CAD
Commitments and Contingencies Disclosure [Line Items]
Leases of warehouse and retail store space under operating lease, expiring time	2029
Renewal options of leases for additional periods					1 year	20 years
Lease term (in years)	15 years
Leases of transportation and computer equipment under operating leases, expiring period (in years)						4 years
Event of default, loan due In full, term	90 days
Portion that Company might be obligated to repay in the event franchisees defaulted	$ 87,100,000
Fair value of franchise related borrowings	820,000,000
Loan facility to franchisees, maximum commitment amount	175,000,000.0
Loan facility maximum Canadian sub facility commitment amount								50,000,000
Loss contingency accrual	29,400,000
Range of possible loss not accrued					0	4,100,000
Minimum range of possible loss	50,000
Maximum range of possible loss	1,200,000
Statutory penalty damages, per violation (in dollars per violation)				100
Loss contingency, damages sought, value (not less than)							250,000
Number of franchise rights sold during period		5
Contractual commitments future minimum payments due			$ 16,800,000