REFRANCHISING (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Apr. 28, 2016 USD ($)	Jun. 30, 2016 USD ($) store	Mar. 31, 2016 USD ($) franchise	Dec. 31, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 store
Franchisor Disclosure [Line Items]
Gains on refranchising			$ 1,015		$ 338
Disposal Group, Held-for-sale, Not Discontinued Operations
Franchisor Disclosure [Line Items]
Gains on refranchising			$ 1,000	$ 300
Disposal Group, Held-for-sale, Not Discontinued Operations | Company Owned Stores
Franchisor Disclosure [Line Items]
Number of franchises | franchise			94
Forecast | Disposal Group, Held-for-sale, Not Discontinued Operations
Franchisor Disclosure [Line Items]
Gains on refranchising	$ 20,000	$ 20,000
Forecast | Franchisee Group 1 | Disposal Group, Held-for-sale, Not Discontinued Operations | Company Owned Stores
Franchisor Disclosure [Line Items]
Number of franchises | store		84
Forecast | Franchisee Group 2 | Disposal Group, Held-for-sale, Not Discontinued Operations | Company Owned Stores
Franchisor Disclosure [Line Items]
Number of franchises | store						10