REVENUE RECOGNITION - Loyalty Programs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Hotel
Disaggregation of Revenue [Line Items]
Goods and services provided without charge	$ 19,939	$ 11,697	$ 11,347
Food and beverage
Disaggregation of Revenue [Line Items]
Goods and services provided without charge	31,569	23,051	23,674
Other
Disaggregation of Revenue [Line Items]
Goods and services provided without charge	7,594	5,772	5,927
Loyalty Programs
Disaggregation of Revenue [Line Items]
Goods and services provided without charge	$ 59,102	$ 40,520	$ 40,948