Revenue Recognition (Disaggregation Of Company's Revenue From Contracts With Customers) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Net operating revenue	$ 52,445	$ 39,648	$ 98,057	$ 80,270
Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	1,541	1,274	3,035	2,134
Canada [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	21,988	15,331	38,289	30,004
United States [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	8,809	8,476	16,874	16,183
Poland [Member]
Disaggregation of Revenue [Line Items]
Net operating revenue	20,107	14,567	39,859	31,949
Gaming [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	41,986	32,605	79,326	66,612
Gaming [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	1,081	1,109	2,230	1,877
Gaming [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	13,649	10,105	23,582	19,852
Gaming [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	7,381	7,022	14,179	13,441
Gaming [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	19,875	14,369	39,335	31,442
Hotel [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	494	505	940	959
Hotel [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	121	132	246	268
Hotel [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	373	373	694	691
Food And Beverage [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	5,054	3,781	8,805	7,340
Food And Beverage [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	235	102	456	102
Food And Beverage [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	3,656	2,533	6,097	5,022
Food And Beverage [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	949	985	1,811	1,870
Food And Beverage [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	214	161	441	346
Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	4,911	2,757	8,986	5,359
Other [Member] | Corporate And Other [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	225	63	349	155
Other [Member] | Canada [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	4,562	2,561	8,364	4,862
Other [Member] | United States [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	106	96	190	181
Other [Member] | Poland [Member]
Disaggregation of Revenue [Line Items]
Operating revenue	$ 18	$ 37	$ 83	$ 161