Revenue Recognition (Disaggregation Of Company's Revenue From Contracts With Customers) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Net operating revenue	$ 161,179	$ 112,552	$ 406,448	$ 326,776
United States Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	116,861	70,718	277,636	206,275
Canada Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	20,921	20,065	56,262	55,105
Poland Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	23,397	21,733	72,489	65,265
Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue		36	61	131
Gaming [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	111,232	93,505	306,373	277,853
Gaming [Member] | United States Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	75,711	60,150	200,089	179,524
Gaming [Member] | Canada Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	12,407	11,841	34,606	33,728
Gaming [Member] | Poland Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	23,114	21,478	71,617	64,481
Gaming [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue		36	61	120
Pari-Mutuel, Sports Betting And iGaming [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	6,095	6,067	14,537	14,755
Pari-Mutuel, Sports Betting And iGaming [Member] | United States Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	3,178	2,965	6,847	6,300
Pari-Mutuel, Sports Betting And iGaming [Member] | Canada Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	2,917	3,102	7,690	8,455
Hotel [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	15,937	2,619	30,694	7,234
Hotel [Member] | United States Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	15,791	2,485	30,305	6,895
Hotel [Member] | Canada Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	146	134	389	339
Food And Beverage [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	18,492	7,031	36,078	18,095
Food And Beverage [Member] | United States Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	14,242	3,319	25,922	9,314
Food And Beverage [Member] | Canada Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	4,012	3,509	9,449	8,171
Food And Beverage [Member] | Poland Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	238	203	707	610
Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	9,423	3,330	18,766	8,839
Other [Member] | United States Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	7,939	1,799	14,473	4,242
Other [Member] | Canada Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	1,439	1,479	4,128	4,412
Other [Member] | Poland Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	45	52	165	174
Other [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue				11
Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	161,179	112,552	406,448	326,776
Operating Segments [Member] | United States Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	116,861	70,718	277,636	206,275
Operating Segments [Member] | Canada Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	20,921	20,065	56,262	55,105
Operating Segments [Member] | Poland Segment [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	$ 23,397	21,733	72,489	65,265
Operating Segments [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue		$ 36	$ 61	$ 131