Commitments and Contingencies (Details)		9 Months Ended
	Feb. 27, 2013 USD ($)	Sep. 30, 2015 CAD	Sep. 30, 2015 USD ($)	Oct. 26, 2010 $ / violation
Commitments and Contingencies Disclosure [Line Items]
Leases of warehouse and retail store space under operating lease, expiring time		2033
Lease term (in years)		15 years
Event of default, loan due In full, term (in days)		90 days
Portion that company might be obligated to repay in the event franchisees defaulted			$ 78,000,000
Fair value of franchise related borrowings			1,000,000
Loan facility to franchisees, maximum commitment amount			175,000,000.0
Loss contingency accrual			16,200,000
Minimum range of possible loss			125,000
Maximum range of possible loss			1,300,000
Marketing and Advertising Expense
Commitments and Contingencies Disclosure [Line Items]
Contractual commitments future minimum payments due			9,100,000
Margaret Korrow
Commitments and Contingencies Disclosure [Line Items]
Statutory penalty damages, per violation (in dollars per violation) | $ / violation				100
Minimum
Commitments and Contingencies Disclosure [Line Items]
Renewal options of leases for additional periods (in years)		1 year
Range of possible loss not accrued			0
Maximum
Commitments and Contingencies Disclosure [Line Items]
Renewal options of leases for additional periods (in years)		20 years
Leases of transportation and computer equipment under operating leases, expiring period (in years)		4 years
Range of possible loss not accrued			$ 2,900,000
Maximum | Lomi Price
Commitments and Contingencies Disclosure [Line Items]
Loss contingency, damages sought, value (not less than)	$ 250,000
Amendment | Franchise Loan Facility
Commitments and Contingencies Disclosure [Line Items]
Loan facility maximum Canadian sub facility commitment amount | CAD		CAD 50,000,000