STOCK-BASED COMPENSATION - Reported Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Stock-based compensation expense
Total stock-based compensation, before taxes	$ 1,280	$ 873
Tax benefit	(269)	(183)
Total stock-based compensation, net of tax	1,011	690
Casino
Stock-based compensation expense
Total stock-based compensation, before taxes	42
Food and beverage
Stock-based compensation expense
Total stock-based compensation, before taxes	46	57
Hotel
Stock-based compensation expense
Total stock-based compensation, before taxes	32	28
Selling, general and administrative
Stock-based compensation expense
Total stock-based compensation, before taxes	$ 1,160	$ 788

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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