REVENUE - Balances from Contract with Customer (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Contract liabilities:
Contract assets		$ 25,500
Deferred revenue	$ 34,253	37,629
Revenue, performance obligation		33,500
Franchise Fees
Contract liabilities:
Balance at end of period	28,300
Deferred revenue	6,300
Deferred franchise and license fees
Contract liabilities:
Balance at beginning of period	33,464	38,011
Recognition of revenue included in beginning balance	(10,423)	(7,745)
Contract liability, net of revenue, recognized during the period	5,252	3,198
Balance at end of period	28,293	33,464
PRO Access and loyalty program points ()
Contract liabilities:
Balance at beginning of period	24,836	24,464
Recognition of revenue included in beginning balance	(24,836)	(24,464)
Contract liability, net of revenue, recognized during the period	22,896	24,836
Balance at end of period	22,896	24,836
Gift card liability
Contract liabilities:
Balance at beginning of period	3,416	4,172
Recognition of revenue included in beginning balance	(2,049)	(2,562)
Contract liability, net of revenue, recognized during the period	1,743	1,806
Balance at end of period	$ 3,110	$ 3,416