NEW ACCOUNTING STANDARDS - Contract with Customers (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Oct. 01, 2018
Outstanding gaming chips and slot tickets liability
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract related liabilities	$ 6,690	$ 3,298
Outstanding gaming chips and slot tickets liability | Effect of Change Higher/(Lower) | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract related liabilities	3,392
Loyalty points deferred revenue liability
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract related liabilities	41,061	42,314
Loyalty points deferred revenue liability | Effect of Change Higher/(Lower) | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract related liabilities	(1,253)
Patron advances and other liability
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract related liabilities	20,029	$ 17,530
Patron advances and other liability | Effect of Change Higher/(Lower) | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract related liabilities	$ 2,499