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Description Of Business And Basis Of Presentation (Summary Of The Time Period Casinos Closure And Reopen With Gaming Floor Open) (Details)	6 Months Ended
	Jun. 30, 2021
Colorado [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	March 17, 2020
Reopen Date	June 15 and June 17, 2020
Gaming Floor Open	100.00%
Missouri [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	March 17, 2020
Reopen Date	June 1, 2020
Gaming Floor Open	94.00%
West Virginia [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	March 17, 2020
Reopen Date	June 5, 2020
Gaming Floor Open	100.00%
Edmonton [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	March 17, 2020
Reopen Date	June 13, 2020
Edmonton [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	December 13, 2020
Reopen Date	June 10, 2021
Gaming Floor Open	100.00%
Calgary [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	March 17, 2020
Reopen Date	June 13, 2020
Calgary [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	December 13, 2020
Reopen Date	June 10, 2021
Gaming Floor Open	100.00%
Poland [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	March 13, 2020
Reopen Date	May 18, 2020
Poland [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	December 29, 2020
Reopen Date	February 12, 2021
Poland [Member]
Description Of Business And Basis Of Presentation [Line Items]
Closure Date	March 20, 2021
Reopen Date	May 28, 2021
Gaming Floor Open	69.00%

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