ACQUISITIONS (Details) $ in Thousands				3 Months Ended
	Apr. 24, 2020 USD ($)	Jul. 10, 2019 USD ($)	Jan. 23, 2019 USD ($) casino	Mar. 31, 2020 USD ($) shares	Mar. 31, 2019 USD ($) shares
Business Acquisition [Line Items]
Transaction costs				$ 1,766	$ 6,878
Number of common shares repurchased | shares				1,649,768	0
Black Hawk Casinos
Business Acquisition [Line Items]
Number of businesses acquired | casino			3
Total consideration paid				$ 53,800
Total consideration paid, net of cash acquired				50,451	$ 0
Transaction costs				600	400
Net revenue from date of acquisition				4,500
Black Hawk Casinos | License
Business Acquisition [Line Items]
Identifiable intangible assets			$ 3,300	0
Black Hawk Casinos | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets			$ 2,100
Acquired intangible assets, useful life			10 years
Black Hawk Casinos | Rated Player Relationships
Business Acquisition [Line Items]
Identifiable intangible assets			$ 600
Acquired intangible assets, useful life			6 years
Isle Kansas City and Lady Luck Vicksburg
Business Acquisition [Line Items]
Total consideration paid		$ 230,000
Transaction costs				438	0
Shreveport & MontBleu Properties [Member] | Subsequent Event
Business Acquisition [Line Items]
Total consideration paid	$ 155,000
Bally's Atlantic City [Member] | Subsequent Event
Business Acquisition [Line Items]
Total consideration paid	$ 25,000
Bally's, Shreveport & Montbleu
Business Acquisition [Line Items]
Transaction costs				$ 703	$ 0