REVENUE RECOGNITION - Promotional Allowances (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
Food and beverage
Promotional Allowances
Estimated departmental costs of providing promotional allowances	$ 26,025
Hotel
Promotional Allowances
Estimated departmental costs of providing promotional allowances	3,375
Other
Promotional Allowances
Estimated departmental costs of providing promotional allowances	2,128
Promotional allowances
Promotional Allowances
Estimated departmental costs of providing promotional allowances	$ 31,528