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Basis of Presentation (Details Textual) | Mar. 31, 2015 agency state person bed facility
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Number of beds | 86,000 geo_NumberofBedsinFacilityWhichHasNoticeofIntenttoAwardContractFor
Correctional, detention and residential treatment facilities including projects under development | 106 geo_CorrectionalDetentionAndResidentialTreatmentFacilitiesIncludingProjectsUnderDevelopment
Provision of monitoring services tracking offenders (more than 70,000) | 70,000 geo_ProvisionOfMonitoringServicesTrackingOffenders
Number of federal, state and local correctional agencies to which company provides monitoring services | 900 geo_NumberOfFederalStateAndLocalCorrectionalAgencies
Number of states in which entity operates | 50 us-gaap_NumberOfStatesInWhichEntityOperates

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- Definition Correctional, Detention and Residential Treatment Facilities Including Projects Under Development. + References No definition available. + Details
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Balance Type: | na
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- Definition Number of Beds in Facility Which Has Notice of Intent to Award Contract For + References No definition available. + Details
Name: | geo_NumberofBedsinFacilityWhichHasNoticeofIntenttoAwardContractFor
Namespace Prefix: | geo_
Data Type: | xbrli:integerItemType
Balance Type: | na
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- Definition Number of federal, state and local correctional agencies. + References No definition available. + Details
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Namespace Prefix: | geo_
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Balance Type: | na
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- Definition Provision of monitoring services tracking offenders. + References No definition available. + Details
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Balance Type: | na
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- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
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- Details
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