Revenue Recognition (Disaggregation Of Company's Revenue From Contracts With Customers) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Net operating revenue	$ 108,508	$ 103,103
Gaming [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	94,297	89,876
Pari-Mutuel, Sports Betting And iGaming [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	3,385	3,430
Hotel Project [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,522	2,074
Food And Beverage [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	5,767	5,038
Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,537	2,685
Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	108,508	103,103
Operating Segments [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	57	32
Operating Segments [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	66,369	65,248
Operating Segments [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	16,503	15,999
Operating Segments [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	25,579	21,824
Operating Segments [Member] | Gaming [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	57	30
Operating Segments [Member] | Gaming [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	58,393	58,245
Operating Segments [Member] | Gaming [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	10,598	9,976
Operating Segments [Member] | Gaming [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	25,249	21,625
Operating Segments [Member] | Pari-Mutuel, Sports Betting And iGaming [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,282	963
Operating Segments [Member] | Pari-Mutuel, Sports Betting And iGaming [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,103	2,467
Operating Segments [Member] | Hotel Project [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,403	1,990
Operating Segments [Member] | Hotel Project [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	119	84
Operating Segments [Member] | Food And Beverage [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	3,110	2,934
Operating Segments [Member] | Food And Beverage [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	2,426	1,914
Operating Segments [Member] | Food And Beverage [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	231	190
Operating Segments [Member] | Other [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		2
Operating Segments [Member] | Other [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,181	1,116
Operating Segments [Member] | Other [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,257	1,558
Operating Segments [Member] | Other [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	$ 99	$ 9