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Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	1 Months Ended	3 Months Ended			9 Months Ended
	Aug. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jul. 01, 2020	May 21, 2020 USD ($)
Number of Gaming Entertainment Properties		29			29		29
Asset Impairment Charges, Total		$ 0		$ 0	$ 171,100	$ 0
Casino [Member] | Gaming [Member]
Taxes, Other		$ 114,800		$ 136,200	$ 259,700	$ 411,000
Senior Notes [Member] | Senior Note 8.625% Due 2025 [Member]
Debt Instrument, Face Amount								$ 600,000
Debt Instrument, Interest Rate, Stated Percentage		8.625%			8.625%			8.625%
Line of Credit [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Increase in Available Borrowing Capacity	$ 88,200
COVID 19 [Member]
Number of Re-opened Gaming Entertainment Properties							26
COVID-19 Pandemic [Member]
Asset Impairment Charges, Total			$ 171,100		$ 171,100

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