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Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands		3 Months Ended			6 Months Ended
	Mar. 16, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jul. 01, 2020	May 21, 2020 USD ($)
Number of Gaming Entertainment Properties		29			29
Proceeds from Lines of Credit, Total					$ 965,100	$ 776,029
Asset Impairment Charges, Total		$ 0		$ 0	171,100	0
Casino [Member] | Gaming [Member]
Taxes, Other		$ 34,800		$ 139,100	$ 144,800	$ 274,800
Line of Credit [Member] | Swing Loan [Member]
Proceeds from Issuance of Long-term Debt, Total	$ 10,000
Line of Credit [Member] | Revolving Credit Facility [Member]
Proceeds from Lines of Credit, Total	$ 660,000
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%
Subsequent Event [Member]
Number of Gaming Entertainment Properties							29
COVID 19 [Member] | Subsequent Event [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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