Description Of Business And Basis Of Presentation (Narrative) (Details) CAD in Millions			1 Months Ended	3 Months Ended				9 Months Ended		12 Months Ended
	Mar. 20, 2015 CAD	Mar. 20, 2015 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2017 item	Sep. 30, 2016 USD ($) item	Jun. 30, 2016 item	Sep. 30, 2015 USD ($) item	Sep. 30, 2016 USD ($) item	Sep. 30, 2015 USD ($) item	Dec. 31, 2018 CAD	Oct. 31, 2014	Dec. 31, 2013
Description Of Business And Basis Of Presentation [Line Items]
Number of ship-based casinos | item					13			13
Number of cruise ship owners | item								4
Number of ships for which concession agreements will be terminated | item							8		8
Consideration to be received in relation to early termination of concession agreements | $			$ 4,000,000
Loss on disposition of fixed assets | $			$ 600,000		$ (5,000)		$ (136,000)	$ (42,000)	$ (281,000)
Scenario, Forecast [Member]
Description Of Business And Basis Of Presentation [Line Items]
Estimated project costs | CAD										CAD 50.0
Correction of Prior Year Balances [Member]
Description Of Business And Basis Of Presentation [Line Items]
Understatement to cash provided by operating activities, adjustment | $									1,000,000
Understatement to cash used in investing activities, adjustment | $									$ 1,000,000
Percentage Of CBS Owned By CCE [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership percentage					75.00%			75.00%
Lot Polish Airlines Invesment [Member]
Description Of Business And Basis Of Presentation [Line Items]
Owned by noncontrolling interest					33.30%			33.30%				33.30%
Casinos Poland Ltd [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership percentage					66.60%			66.60%
Number of casinos owned and operated | item								8
Century Bets! Inc. [Member]
Description Of Business And Basis Of Presentation [Line Items]
Owned by noncontrolling interest					25.00%			25.00%
Century Casinos Europe GmbH [Member] | Percentage Of Century Downs Racetrack Owned By Century Casinos Europe [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership percentage					75.00%			75.00%
Oceania Cruises [Member]
Description Of Business And Basis Of Presentation [Line Items]
Term of consulting agreement								2 years
Consulting Fee | $								$ 2,000,000
Consulting Fee payable per quarter | $								$ 250,000
TUI Cruises, TUI Discovery [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of passengers | item						2,067
TUI Cruises, Mein Schiff 5 [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of passengers | item					2,500
TUI Cruises, Mein Schiff 6 [Member] | Scenario, Forecast [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of passengers | item				2,500
Taihu International Cruises [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of passengers | item								1,200
Century Downs Racetrack And Casino [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership percentage					75.00%			75.00%
Owned by noncontrolling interest					25.00%			25.00%
Century Downs Racetrack And Casino [Member] | Century Casinos Europe GmbH [Member]
Description Of Business And Basis Of Presentation [Line Items]
Additional ownership acquired	60.00%	60.00%
Amount of credit agreement converted | CAD	CAD 11.0
Gain on conversion of debt receivable to equity recognized in accumulated other comprehensive income | $		$ 100,000
Gain on conversion of debt receivable to equity | $		$ 600,000
Mendoza Central Entretenimientos S. A. [Member] | Century Casinos Europe GmbH [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership interest					7.50%			7.50%			7.50%