REVENUE - Contract with Customer (Details) - USD ($)	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Contract With Customer [Line Items]
Contract assets	$ 0	$ 25,500,000
Deferred franchise and license fees
Contract liabilities:
Balance at Beginning of Period	33,464,000
Recognition of revenue included in beginning balance	(7,931,000)
Contract liability, net of revenue, recognized during the period	3,476,000
Balance at the End of Period	29,009,000
Deferred revenue, expected to be recognized over next 12 months	6,300,000
PRO Access and loyalty program points
Contract liabilities:
Balance at Beginning of Period	24,836,000
Recognition of revenue included in beginning balance	(21,266,000)
Contract liability, net of revenue, recognized during the period	22,562,000
Balance at the End of Period	26,132,000
Gift card liability
Contract liabilities:
Balance at Beginning of Period	3,416,000
Recognition of revenue included in beginning balance	(1,945,000)
Contract liability, net of revenue, recognized during the period	324,000
Balance at the End of Period	$ 1,795,000