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Description Of Business And Basis Of Presentation (Narrative) (Details) | 1 Months Ended | 3 Months Ended |  | 3 Months Ended |  | 0 Months Ended |  |  | 3 Months Ended |  | 1 Months Ended |  |  | 0 Months Ended | 1 Months Ended | 3 Months Ended
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Oct. 31, 2014 | Mar. 31, 2015 USD ($) item | Mar. 31, 2015 CAD item | Dec. 31, 2014 USD ($) | Mar. 31, 2015 Percentage Of CPL Owned By CCE [Member] | Mar. 31, 2015 Percentage Of CPL Owned By Polish Airport [Member] | Mar. 31, 2015 Percentage Of CDR Owned by CCE [Member] | Mar. 31, 2015 Percentage Of CDR Owned By Unaffiliated Shareholders [Member] | Mar. 31, 2015 Century Casinos [Member] Century Bets! Inc. [Member] | Feb. 21, 2013 Casinos Poland Ltd [Member] | Apr. 30, 2013 Casinos Poland Ltd [Member] | Mar. 31, 2007 Casinos Poland Ltd [Member] | Mar. 31, 2015 Windstar Cruises [Member] item | Mar. 31, 2015 Oceania Cruises [Member] | Mar. 31, 2015 Rocky Mountain Turf Club [Member] Century Bets! Inc. [Member] | May 31, 2014 Subsequent Event [Member] Windstar Cruises [Member] item | Mar. 31, 2015 Century Downs Racetrack And Casino [Member] | Mar. 20, 2015 Century Downs Racetrack And Casino [Member] | Mar. 20, 2015 Century Downs Racetrack And Casino [Member] Century Casinos Europe GmbH [Member] | Mar. 20, 2015 Century Downs Racetrack And Casino [Member] Century Casinos Europe GmbH [Member] CAD | Oct. 31, 2014 Mendoza Central Entretenimientos S. A. [Member] Century Casinos Europe GmbH [Member] USD ($) | Oct. 31, 2014 Mendoza Central Entretenimientos S. A. [Member] Century Casinos Europe GmbH [Member] USD ($) | Mar. 31, 2015 Mendoza Central Entretenimientos S. A. [Member] Century Casinos Europe GmbH [Member] USD ($) item
Description Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  | 25.00%us-gaap_EquityMethodInvestmentOwnershipPercentage | 25.00%us-gaap_EquityMethodInvestmentOwnershipPercentage |  |  | 33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / cnty_SubsidiariesAxis = cnty_PercentageOfCplOwnedByPolishAirportMember |  |  | 75.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / cnty_SubsidiariesAxis = cnty_CenturyBetsIncMember |  | 66.60%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = cnty_CasinosPolandLtdMember | 33.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = cnty_CasinosPolandLtdMember |  |  |  |  | 75.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = cnty_CenturyDownsRacetrackAndCasinoMember | 75.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = cnty_CenturyDownsRacetrackAndCasinoMember |  |  |  |  |
Additional ownership acquired |  |  |  |  | 33.30%cnty_AdditionalOwnershipPercentageToAcquire / cnty_SubsidiariesAxis = cnty_PercentageOfCplOwnedByCceMember |  |  |  |  | 33.30%cnty_AdditionalOwnershipPercentageToAcquire / dei_LegalEntityAxis = cnty_CasinosPolandLtdMember |  |  |  |  |  |  |  |  | 60.00%cnty_AdditionalOwnershipPercentageToAcquire / us-gaap_BusinessAcquisitionAxis = cnty_CenturyDownsRacetrackAndCasinoMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember | 60.00%cnty_AdditionalOwnershipPercentageToAcquire / us-gaap_BusinessAcquisitionAxis = cnty_CenturyDownsRacetrackAndCasinoMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |  |
Ownership interest |  |  |  |  |  |  | 15.00%us-gaap_MinorityInterestOwnershipPercentageByParent / cnty_SubsidiariesAxis = cnty_PercentageOfCenturyDownsRacetrackOwnedByCenturyCasinosEuropeMember | 25.00%us-gaap_MinorityInterestOwnershipPercentageByParent / cnty_SubsidiariesAxis = cnty_PercentageOfCenturyDownsRacetrackOwnedByUnaffiliatedShareholdersMember |  |  |  |  |  |  | 25.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = cnty_RockyMountainTurfClubMember / cnty_SubsidiariesAxis = cnty_CenturyBetsIncMember |  |  |  |  |  |  | 7.50%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember | 7.50%us-gaap_MinorityInterestOwnershipPercentageByParent / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember
Number of ship-based casinos |  | 16 cnty_NumberOfShipBasedCasinos | 16 cnty_NumberOfShipBasedCasinos |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of cruise lines |  | 5 cnty_NumberOfCruiseLines | 5 cnty_NumberOfCruiseLines |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of cruise ships |  |  |  |  |  |  |  |  |  |  |  |  | 2 cnty_NumberOfCruiseShips / dei_LegalEntityAxis = cnty_WindstarCruisesMember |  |  | 3 cnty_NumberOfCruiseShips / dei_LegalEntityAxis = cnty_WindstarCruisesMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |
Number of passengers |  | 2,500 cnty_NumberOfPassengers | 2,500 cnty_NumberOfPassengers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of ships for which concession agreements will be terminated |  | 8 cnty_NumberOfShipsForWhichConcessionAgreementsWillBeTerminated | 8 cnty_NumberOfShipsForWhichConcessionAgreementsWillBeTerminated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of consulting agreement |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |
Convertible amount |  |  | 11,000,000 us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible percent of ownership interest |  | 60.00%cnty_ConvertiblePercentOfOwnershipInterest | 60.00%cnty_ConvertiblePercentOfOwnershipInterest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of credit agreement converted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,000,000 us-gaap_DebtConversionOriginalDebtAmount1 / us-gaap_BusinessAcquisitionAxis = cnty_CenturyDownsRacetrackAndCasinoMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |  |  |
Investment in Mendoza Central Entretenmientos S.A. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember | 1,000,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember |
Number of subsidiary directors the company has the right to appoint |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 cnty_NumberOfSubsidiaryDirectorsCompanyHasRightToAppoint / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember
Subsidiary share purchase option percentage | 50.00%cnty_SubsidiarySharePurchaseOptionPercentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary share purchase option term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |
Cost investment |  | $ 1,000,000 us-gaap_InvestmentOwnedAtCost |  | $ 1,000,000 us-gaap_InvestmentOwnedAtCost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 us-gaap_InvestmentOwnedAtCost / us-gaap_BusinessAcquisitionAxis = cnty_MendozaCentralEntretenimientosSMember / dei_LegalEntityAxis = cnty_CenturyCasinosEuropeGmbhMember

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