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Earn Out

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Number of casinos owned and operated.

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Number Of Premium Rooms

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Number of ship-based casinos.

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Number Of Standard Rooms

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Project Costs

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Quarterly Earn Out Period

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Amount of direct write-downs of accounts receivable charged against the allowance.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Description Of Business And Basis Of Presentation (Narrative) (Details) $ in Thousands, € in Millions, $ in Millions					1 Months Ended			3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($) item	Jul. 16, 2021 USD ($) room	Feb. 12, 2021 USD ($)	Feb. 12, 2021 CAD ($)	Jun. 30, 2021 USD ($) item	Aug. 31, 2020	Mar. 31, 2020 USD ($)	Sep. 30, 2021 USD ($) item	Sep. 30, 2021 CAD ($)	Sep. 30, 2021 USD ($) room item	Sep. 30, 2021 CAD ($) room item	Sep. 30, 2020 USD ($)	Sep. 30, 2021 EUR (€) item	May 31, 2021 USD ($) item	Dec. 31, 2020 USD ($)	Aug. 05, 2020 USD ($)	Aug. 05, 2020 CAD ($)	Dec. 06, 2019 USD ($)	Oct. 31, 2014
Description Of Business And Basis Of Presentation [Line Items]
Number of ship-based casinos \| item	2							2		2			2
Number of ship based casinos, ended \| item														2
Number of ship based casinos, operating \| item					1
Assets held for sale	$ 8,381							$ 8,381		$ 8,381					$ 8,271
Earn outs								47		47
Restricted cash	$ 196							$ 196		$ 196
UniCredit Bank Austria [Member]
Description Of Business And Basis Of Presentation [Line Items]
Revolving credit facility, amount drew							$ 7,400
Refinanced amount					$ 7,400
Lot Polish Airlines Invesment [Member] \| Polish Airports Company [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership interest by non-controlling	33.30%							33.30%		33.30%			33.30%
Casinos Poland [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership percentage	66.60%							66.60%		66.60%			66.60%
Number of casinos owned and operated \| item										8	8
Mendoza Central Entretenimientos S. A. [Member]
Description Of Business And Basis Of Presentation [Line Items]
Impairment intangible assets							1,000
Wrote-down receivable							300
Century Resorts Management GmbH [Member] \| Mendoza Central Entretenimientos S. A. [Member]
Description Of Business And Basis Of Presentation [Line Items]
Ownership interest	7.50%							7.50%		7.50%			7.50%						7.50%
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%							75.00%		75.00%			75.00%
Century Casino Bath [Member]
Description Of Business And Basis Of Presentation [Line Items]
Gain in general and administrative expenses												$ 7,400
Macquarie Capital [Member] \| Revolving Credit Facility [Member]
Description Of Business And Basis Of Presentation [Line Items]
Revolving credit facility, amount drew							$ 9,950
Credit facility amount	$ 10,000							$ 10,000		$ 10,000								$ 10,000
Maturity date										Dec. 06, 2024	Dec. 06, 2024
Macquarie Capital [Member] \| Line Of Credit [Member]
Description Of Business And Basis Of Presentation [Line Items]
Line of credit facility														$ 50
Century Sports [Member]
Description Of Business And Basis Of Presentation [Line Items]
Lease term																3 years	3 years
Annual net rent										$ 400	$ 0.5
Century Casino Caruthersville [Member] \| Hotel [Member]
Description Of Business And Basis Of Presentation [Line Items]
Project costs	900	$ 2,200
Number of rooms \| room		36
Century Casino Caruthersville [Member] \| Riverboat Casino Project [Member]
Description Of Business And Basis Of Presentation [Line Items]
Project cost	45,200							45,200		$ 45,200
Cape Girardeau [Member] \| Hotel [Member]
Description Of Business And Basis Of Presentation [Line Items]
Number of standard rooms \| room										56	56
Number of premium rooms \| room										14	14
Number of grand suites \| item										5	5
Project cost	$ 23,100							$ 23,100		$ 23,100
Term Loan [Member] \| UniCredit Bank Austria [Member]
Description Of Business And Basis Of Presentation [Line Items]
Term loan \| €													€ 6.0
Maturity date										Dec. 31, 2025	Dec. 31, 2025
Term Loan [Member] \| Macquarie Capital [Member]
Description Of Business And Basis Of Presentation [Line Items]
Maturity date										Dec. 06, 2026	Dec. 06, 2026
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%							25.00%		25.00%			25.00%
Deposits And Other Related To A Cash Guarantee [Member]
Description Of Business And Basis Of Presentation [Line Items]
Restricted cash												600
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		$ 200		200
Cash Held In Escrow [Member]
Description Of Business And Basis Of Presentation [Line Items]
Restricted cash	200							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		$ 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] \| Land [Member]
Description Of Business And Basis Of Presentation [Line Items]
Held for sale assets	4,700							4,700		4,700
Century Casino Calgary, Land And Building [Member] \| Buildings And Improvements [Member]
Description Of Business And Basis Of Presentation [Line Items]
Held for sale assets	3,500							3,500		3,500
Century Casino Calgary, Land And Building [Member] \| Furniture, Fixtures And Equipment [Member]
Description Of Business And Basis Of Presentation [Line Items]
Held for sale assets	$ 100							100		100
Century Casino Calgary [Member] \| General and Administrative Expenses [Member]
Description Of Business And Basis Of Presentation [Line Items]
Earn outs								$ 100	$ 0.1	$ 100	$ 0.1