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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 |  |  |  |  |
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Apr. 03, 2023 USD ($) | Oct. 26, 2022 item | Aug. 24, 2022 USD ($) | Apr. 01, 2022 USD ($) | Jul. 16, 2021 room | Dec. 31, 2022 item | Aug. 31, 2020 USD ($) | Mar. 31, 2023 USD ($) ft² room item | Mar. 31, 2023 CAD ($) ft² room item | Dec. 31, 2022 item | Sep. 30, 2022 USD ($) | Sep. 30, 2022 CAD ($) | Dec. 31, 2022 | Mar. 31, 2022 USD ($) | Feb. 10, 2022 USD ($) | Feb. 10, 2022 CAD ($) | Dec. 31, 2020 | Aug. 31, 2020 CAD ($) | Dec. 31, 2019 USD ($)
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of ship-based casinos | item |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |
Earn outs |  |  |  |  |  |  |  | $ 574 |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  |  |  |  |  |  | 100,200 |  |  |  |  |  | $ 20 |  |  |  |  |
Acquisition escrow in restricted cash |  |  |  |  |  |  |  | $ 100,200 |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option to acquire period |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |
Ownership interest |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for acquisition in cash |  |  |  | $ 29,300 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [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% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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% |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |
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% |  |  |  |  |  |  |  |  |  |  |
Macquarie Capital [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000
Century Casino Caruthersville [Member] | Hotel Project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rooms | room |  |  |  |  | 36 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Project cost |  |  |  |  |  |  |  | $ 3,600 |  |  |  |  |  |  |  |  |  |  |
Century Casino Caruthersville [Member] | Riverboat Casino Project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of rooms | room |  |  |  |  |  |  |  | 38 | 38 |  |  |  |  |  |  |  |  |  |
Project cost |  |  |  |  |  |  |  | $ 5,400 |  |  |  |  |  |  |  |  |  |  |
Estimated projects cost |  |  |  |  |  |  |  | 51,900 |  |  |  |  |  |  |  |  |  |  |
Amount received for project financing |  |  |  |  |  |  |  | $ 10,900 |  |  |  |  |  |  |  |  |  |  |
Century Casino Caruthersville [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] | Land-based pavilion [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of slot machines | item |  |  |  |  |  | 424 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of table games | item |  |  |  |  |  | 6 |  |  |  |  |  |  |  |  |  |  |  |  |
Century Casino Caruthersville [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] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Square footage of hotel | ft² |  |  |  |  |  |  |  | 68,000 | 68,000 |  |  |  |  |  |  |  |  |  |
Number of rooms | room |  |  |  |  |  |  |  | 69 | 69 |  |  |  |  |  |  |  |  |  |
Project cost |  |  |  |  |  |  |  | $ 7,100 |  |  |  |  |  |  |  |  |  |  |
Estimated projects cost |  |  |  |  |  |  |  | $ 30,500 |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  | $ 200 |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |
Quarterly earn out received |  |  |  |  |  |  |  | $ 600 | $ 0.8 |  |  |  |  |  |  |  |  |  |
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 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |
Annual rent |  |  |  |  |  |  |  |  |  |  | $ 400 | $ 0.5 |  |  |  |  |  |  |

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