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Business Segments and Geographic Information - Additional Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) Segment Facility | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Schedule Of Equity Method Investments [Line Items] |  |  |
Number of reportable business segments | Segment | 4 |  |
Number of managed correctional facilities in Australia | Facility | 3 |  |
Equity in earnings (losses) of affiliates, net of income tax provision | $ 2,703 | $ 4,534 | $ 4,771
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] | srt:ChiefExecutiveOfficerMember |  |
Segment reporting CODM profit loss measure how used description | Revenue and operating income for each segment are used by the CODM to assess the performance of each segment in a financial period. The performance of the operating segments is evaluated based on segment operating income, which is defined as income before income taxes before the following: unallocated corporate general and administrative expenses, interest expense, net, loss on extinguishment of debt, and certain gains and losses not allocated to the operating segments. The CODM uses segment operating income as the measure to make resource (including financial or capital resources) allocation decisions for each segment, predominantly in the annual budget and forecasting process. |  |
ISAP Contract | Revenue Benchmark | Product Concentration Risk |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Percentage of revenue | 10.00% | 14.00% | 17.00%
SACS |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Equity in earnings (losses) of affiliates, net of income tax provision | $ 300 | $ 1,700 | $ 2,500
Investment in joint venture | 7,200 | 9,100 |
Dividend distributions received | 1,900 | 2,200 | 1,900
GEO Amey |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Equity in earnings (losses) of affiliates, net of income tax provision | 2,400 | 2,900 | 2,200
Investment in joint venture | 10,300 |  |
Dividend distributions received | 3,200 | 800 | $ 2,600
Advances to affiliate | $ 10,300 | $ 11,200 |

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