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Century Downs Racetrack And Casino (Narrative) (Details)
CAD in Millions, $ in Millions
3 Months Ended
Mar. 20, 2015
CAD
Mar. 20, 2015
USD ($)
Mar. 20, 2015
CAD
Nov. 29, 2013
CAD
Mar. 31, 2016
item
mi
Jun. 30, 2015
USD ($)
Business Acquisition [Line Items]            
Distribution to non-controlling interest | $           $ 0.5
Agreement term for allocation of gaming revenue         10 years  
Century Downs Racetrack And Casino [Member]            
Business Acquisition [Line Items]            
Number of slot machines | item         544  
Number of lottery terminals | item         7  
Ownership percentage 75.00% 75.00% 75.00%   75.00%  
Owned by noncontrolling interest 25.00% 25.00% 25.00%   25.00%  
Horse race track length, furlongs | item         5.5  
Horse race track length, miles | mi         0.7  
Century Casinos Europe GmbH [Member] | Century Downs Racetrack And Casino [Member]            
Business Acquisition [Line Items]            
Additional ownership acquired 60.00% 60.00% 60.00% 60.00%    
Ownership percentage       15.00%    
Amount of credit agreement converted | CAD     CAD 11.0 CAD 11.0    
Gain on conversion of debt receivable to equity | $   $ 0.6        
Gain on conversion of debt receivable to equity recognized in accumulated other comprehensive income | $   $ 0.1        
Century Casinos Europe GmbH [Member] | Loan A [Member] | Century Downs Racetrack And Casino [Member]            
Business Acquisition [Line Items]            
Amount of credit agreement converted | CAD CAD 11.0