Commitments And Contingencies (Narrative) (Details) $ in Thousands, PLN in Millions, CAD in Millions		3 Months Ended		6 Months Ended		12 Months Ended		25 Months Ended
	Mar. 20, 2015 CAD	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2017 PLN	Jun. 30, 2017 USD ($)	Dec. 31, 2014 PLN	Dec. 31, 2014 USD ($)	Jun. 30, 2016 PLN	Jun. 30, 2016 USD ($)	Dec. 31, 2015 PLN	Dec. 31, 2015 USD ($)
Commitments and Contingencies [Line items]
Contingent liability											$ 2,171		$ 2,180
Payroll increase				$ (296)	$ (248)
Distribution to non-controlling interest		$ 1,600	$ 500	$ 1,626	$ 490
Scenario, Forecast [Member]
Commitments and Contingencies [Line items]
Payroll increase						PLN 5.0	$ 1,300
Casinos Poland Ltd [Member]
Commitments and Contingencies [Line items]
Income tax audit costs								PLN 6.4	$ 2,100
Review of Tax Year 2010 [Member]
Commitments and Contingencies [Line items]
Contingent liability												PLN 3.4	$ 900
Review of All Tax Open Periods [Member]
Commitments and Contingencies [Line items]
Contingent liability										PLN 8.6	$ 2,200
Century Casinos Europe GmbH [Member] | Century Downs Racetrack And Casino [Member]
Commitments and Contingencies [Line items]
Amount of credit agreement converted | CAD	CAD 11.0
Additional ownership acquired	60.00%