Commitments And Contingencies (Narrative) (Details) $ in Thousands, zł in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2020 PLN (zł)	Mar. 31, 2019 USD ($)	Mar. 31, 2020 PLN (zł)	Dec. 31, 2019 USD ($)
Commitments and Contingencies [Line items]
Contingent liability	$ 1,035				$ 334
General and administrative	29,532		$ 16,055
Casinos Poland [Member]
Commitments and Contingencies [Line items]
Income tax audit costs	4,200	zł 14.3
Casinos Poland [Member] | Lot Polish Airlines Invesment [Member]
Commitments and Contingencies [Line items]
General and administrative	$ 700	zł 3.0
Casinos Poland [Member] | Polish Airports Company [Member] | Lot Polish Airlines Invesment [Member]
Commitments and Contingencies [Line items]
Ownership interest	33.30%			33.30%
Review of All Tax Open Periods [Member]
Commitments and Contingencies [Line items]
Contingent liability	$ 1,000			zł 4.3