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Description Of Business And Basis Of Presentation (Narrative) (Details) $ in Thousands, $ in Millions |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |
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Apr. 01, 2022 USD ($) | Jul. 16, 2021 room | Feb. 12, 2021 USD ($) | Feb. 12, 2021 CAD ($) | Aug. 31, 2020 | Mar. 31, 2022 USD ($) item | Mar. 31, 2022 CAD ($) item | Dec. 31, 2022 USD ($) ft² | Feb. 22, 2022 | Feb. 10, 2022 USD ($) | Feb. 10, 2022 CAD ($) | Dec. 31, 2021 USD ($) | Nov. 01, 2021 | May 31, 2021 item | Mar. 31, 2021 USD ($) | Aug. 05, 2020 USD ($) | Aug. 05, 2020 CAD ($)
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of ship-based casinos | item |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |
Number of ship based casinos, ended | item |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Restricted cash |  |  |  |  |  | $ 20 |  |  |  |  |  |  |  |  |  |  |
Polish Airports Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest by non-controlling |  |  |  |  |  | 33.30% |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | 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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forecast [Member] | Smooth Bourbon, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchased amount for remaining ownership interest |  |  |  |  |  |  |  | $ 105,000 |  |  |  |  |  |  |  |  |
Option to acquire period |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |
Ownership interest, remaining |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |
Percentage per annum, remaining ownership interest |  |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |  |  |
Forecast [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] | Nugget Sparks, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |
Marnell Gaming, LLC [Member] | Subsequent Event [Member] | 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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Marnell Gaming, LLC [Member] | Subsequent Event [Member] | Nugget Sparks, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual net rent income | $ 15,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  | 1,300 |  |  |  |  |  |  |  |  |  |  |
Estimated projects cost |  |  |  |  |  | 3,600 |  |  |  |  |  |  |  |  |  |  |
Century Casino Caruthersville [Member] | Riverboat Casino Project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Project cost |  |  |  |  |  | 1,100 |  |  |  |  |  |  |  |  |  |  |
Estimated projects cost |  |  |  |  |  | $ 47,000 |  |  |  |  |  |  |  |  |  |  |
TUI Cruises [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of ship based casinos, operating | item |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |
Cape Girardeau [Member] | Hotel Project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Project cost |  |  |  |  |  | $ 600 |  |  |  |  |  |  |  |  |  |  |
Estimated projects cost |  |  |  |  |  | $ 26,000 |  |  |  |  |  |  |  |  |  |  |
Cape Girardeau [Member] | Forecast [Member] | Hotel Project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Square footage of hotel | ft² |  |  |  |  |  |  |  | 76,000 |  |  |  |  |  |  |  |  |
Smooth Bourbon, LLC [Member] | Forecast [Member] | Nugget Sparks, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual net rent |  |  |  |  |  |  |  | $ 15,000 |  |  |  |  |  |  |  |  |
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% |  |  |  |  |  |  |  |  |  |  |
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 |  |
Deposits And Other Related To Insurance Policy [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  |  |  |  | $ 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 |  |  |  |  |

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