Revenue Recognition (Disaggregation Of Company's Revenue From Contracts With Customers) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Net operating revenue	$ 52,935	$ 43,564	$ 150,990	$ 123,834
Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	1,313	1,774	4,343	3,907
Canada [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	22,063	15,683	60,353	45,690
United States [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	9,199	9,360	26,073	25,542
Poland [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	20,360	16,747	60,221	48,695
Gaming [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	42,019	35,983	121,345	102,595
Gaming [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,023	1,462	3,253	3,339
Gaming [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	13,252	10,337	36,834	30,190
Gaming [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	7,637	7,615	21,815	21,056
Gaming [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	20,107	16,569	59,443	48,010
Hotel [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	562	575	1,502	1,534
Hotel [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	119	129	365	396
Hotel [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	443	446	1,137	1,138
Food And Beverage [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	5,425	4,290	14,230	11,630
Food And Beverage [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	167	200	623	303
Food And Beverage [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	4,021	2,691	10,118	7,713
Food And Beverage [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,022	1,194	2,833	3,063
Food And Beverage [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	215	205	656	551
Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	4,929	2,716	13,913	8,075
Other [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	123	112	467	265
Other [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	4,671	2,526	13,036	7,391
Other [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	97	105	288	285
Other [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	$ 38	$ (27)	$ 122	$ 134