Description Of Business And Basis Of Presentation (Narrative) (Details) $ in Thousands, $ in Millions							1 Months Ended	3 Months Ended	9 Months Ended			12 Months Ended
	Oct. 26, 2022 item	Aug. 24, 2022 USD ($)	Apr. 01, 2022 USD ($)	Jul. 16, 2021 room	Feb. 12, 2021 USD ($)	Feb. 12, 2021 CAD ($)	Aug. 31, 2020	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) item	Sep. 30, 2022 CAD ($) item	Sep. 30, 2021 USD ($)	Dec. 31, 2022 USD ($) ft²	Feb. 10, 2022 USD ($)	Feb. 10, 2022 CAD ($)	Dec. 31, 2021 USD ($)	Nov. 01, 2021	Aug. 05, 2020 USD ($)	Aug. 05, 2020 CAD ($)
Description Of Business And Basis Of Presentation [Line Items]
Purchased amount for ownership interest									$ 95,000
Number of ship-based casinos | item									1
Earn outs								$ 47			$ 47
Restricted cash								196	$ 100,100		196
Acquisition escrow in restricted cash									$ 100,100
Polish Airports Company [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership interest by non-controlling									33.30%
Smooth Bourbon, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Purchased amount for ownership interest			$ 95,000
Ownership interest			50.00%
Payments for acquisition in cash			$ 29,300
Subsequent Event [Member] | Hotel Project [Member]
Description Of Business And Basis Of Presentation [Line Items]
Project cost												$ 1,000
Forecast [Member] | Smooth Bourbon, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Option to acquire period												5 years
Plan [Member] | Real estate assets relating to Rocky Gap [Member]
Description Of Business And Basis Of Presentation [Line Items]
Lease term		15 years
Lessee, Operating Lease, Option to Extend									four five year renewal options	four five year renewal options
Annual rent		$ 15,500
Payments to Acquire Productive Assets		203,900
Plan [Member] | Smooth Bourbon, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Purchased amount for remaining ownership interest									$ 105,000
Ownership interest, remaining									50.00%	50.00%
Percentage per annum, remaining ownership interest									2.00%	2.00%
Plan [Member] | Nugget Sparks, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Purchased amount for ownership interest									$ 100,000
Ownership interest									100.00%
Casinos Poland [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership percentage									66.60%
Number of casinos owned and operated | item									8	8
Century Resorts Management [Member] | Mendoza Central Entretenimientos S. A. [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership interest																7.50%
Marnell Gaming, LLC [Member] | Smooth Bourbon, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership interest			50.00%
Marnell Gaming, LLC [Member] | Plan [Member] | Nugget Sparks, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership interest									100.00%
Marnell Gaming, LLC [Member] | Smooth Bourbon, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership percentage									50.00%
Century Resorts Management 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%
Century Sports [Member]
Description Of Business And Basis Of Presentation [Line Items]
Lease term																	3 years	3 years
Annual net rent income									$ 400	$ 0.5
Century Casino Caruthersville [Member] | Hotel Project [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of rooms | room				36
Project cost									2,700
Century Casino Caruthersville [Member] | Riverboat Casino Project [Member]
Description Of Business And Basis Of Presentation [Line Items]
Project cost									2,100
Estimated projects cost									51,900
Century Casino Caruthersville [Member] | Subsequent Event [Member] | Barge [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of slot machines | item	299
Number of table games | item	4
Century Casino Caruthersville [Member] | Subsequent Event [Member] | Land-based pavilion [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of slot machines | item	400
Number of table games | item	7
Century Casino Caruthersville [Member] | Subsequent Event [Member] | Riverboat and the barge [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of slot machines | item	519
Number of table games | item	7
Cape Girardeau [Member] | Hotel Project [Member]
Description Of Business And Basis Of Presentation [Line Items]
Project cost									1,400
Estimated projects cost									$ 30,500
Cape Girardeau [Member] | Forecast [Member] | Hotel Project [Member]
Description Of Business And Basis Of Presentation [Line Items]
Square footage of hotel | ft²												68,000
Smooth Bourbon, LLC [Member] | Nugget Sparks, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Annual rent			$ 15,000
Century Nevada Acquisition, Inc. [Member] | Smooth Bourbon, LLC [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership percentage									50.00%
Rocky Gap Casino Resort [Member] | Plan [Member]
Description Of Business And Basis Of Presentation [Line Items]
Lessee, Operating Lease, Option to Extend									four five year renewal options	four five year renewal options
Payments for acquisition in cash		$ 56,100
Century Downs Racetrack And Casino [Member] | Unaffiliated Shareholders [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership interest by non-controlling									25.00%
Acquisition Escrow [Member] | Casinos Poland [Member]
Description Of Business And Basis Of Presentation [Line Items]
Restricted cash									$ 100
Deposits And Other Related To Payments Of Prizes And Giveaways [Member] | Casinos Poland [Member]
Description Of Business And Basis Of Presentation [Line Items]
Restricted cash								200			200
Cash Held In Escrow [Member]
Description Of Business And Basis Of Presentation [Line Items]
Restricted cash								200			200
Deposits And Other Related To Insurance Policy [Member] | Maximum [Member]
Description Of Business And Basis Of Presentation [Line Items]
Restricted cash								$ 100	$ 100		$ 100
Century Casino Calgary, Casino Operations [Member]
Description Of Business And Basis Of Presentation [Line Items]
Total consideration																	$ 7,500	$ 10.0
Quarterly earn out period							3 years
Working capital					$ 100	$ 0.1
Century Casino Calgary, Land And Building [Member]
Description Of Business And Basis Of Presentation [Line Items]
Sell of land and building													$ 6,300	$ 8.0
Century Casino Calgary, Land And Building [Member] | Land [Member]
Description Of Business And Basis Of Presentation [Line Items]
Held for sale assets															$ 4,800
Century Casino Calgary, Land And Building [Member] | Buildings And Improvements [Member]
Description Of Business And Basis Of Presentation [Line Items]
Held for sale assets															$ 3,600