Revenue Recognition (Disaggregation Of Company's Revenue From Contracts With Customers) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Net operating revenue	$ 103,103	$ 72,415
Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	32	123
United States [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	65,248	64,371
Canada [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	15,999	2,011
Poland [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	21,824	5,910
Gaming [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	89,876	63,428
Gaming [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	30
Gaming [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	58,245	57,909
Gaming [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	9,976
Gaming [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	21,625	5,519
Pari-Mutuel, Sports Betting And iGaming [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	3,430	2,484
Pari-Mutuel, Sports Betting And iGaming [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	963	931
Pari-Mutuel, Sports Betting And iGaming [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,467	1,553
Hotel Project [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,074	1,750
Hotel Project [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,990	1,750
Hotel Project [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	84
Food And Beverage [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	5,038	2,720
Food And Beverage [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,934	2,684
Food And Beverage [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,914	36
Food And Beverage [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	190
Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,685	2,033
Other [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2	123
Other [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,116	1,097
Other [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,558	422
Other [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	$ 9	$ 391