Revenue Recognition (Disaggregation Of Company's Revenue From Contracts With Customers) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Net operating revenue	$ 388,506	$ 304,268	$ 218,227
Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	567	1,413	5,685
United States [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	283,285	198,344	49,998
Canada [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	46,428	50,240	80,650
Poland [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	58,226	54,271	81,894
Gaming [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	331,877	253,281	176,866
Gaming [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	152	830	4,302
Gaming [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	249,397	168,904	42,285
Gaming [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	25,604	30,319	49,450
Gaming [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	56,724	53,228	80,829
Pari-Mutuel, Sports Betting And iGaming [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	18,848	17,660	10,783
Pari-Mutuel, Sports Betting And iGaming [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	8,492	7,502	58
Pari-Mutuel, Sports Betting And iGaming [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	10,356	10,158	10,725
Hotel Project [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	8,286	5,910	2,521
Hotel Project [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	8,241	5,826	2,030
Hotel Project [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	45	84	491
Food And Beverage [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	17,788	16,194	20,022
Food And Beverage [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue		105	799
Food And Beverage [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	11,761	9,795	4,804
Food And Beverage [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	5,606	5,832	13,507
Food And Beverage [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	421	462	912
Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	11,707	11,223	8,035
Other [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	415	478	584
Other [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	5,394	6,317	821
Other [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	4,817	3,847	6,477
Other [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	$ 1,081	$ 581	$ 153