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
	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