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Basis of Presentation - Additional Information (Details) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 26, 2021 bed | Jun. 30, 2021 USD ($) bed facility person detainee | Jun. 30, 2020 USD ($) | Jun. 30, 2021 USD ($) bed facility person detainee | Jun. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |
Number of beds |  | 90,000 |  | 90,000 |  |
Correctional, detention and residential treatment facilities including projects under development | facility |  | 114 |  | 114 |  |
Provision of monitoring services tracking offenders, number of individuals (more than) | person |  | 200,000 |  | 200,000 |  |
Provision of monitoring services tracking offenders using technology products (in detainees) | detainee |  | 100,000 |  | 100,000 |  |
Revenues | $ |  | $ 565,419 | $ 587,829 | $ 1,141,796 | $ 1,192,846 |
Ravenhall | Bureau Of Prisons B O P |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |
Number of beds in detention facility | 1,940 |  |  |  |  |
Expiration date | May 31, 2021 |  |  |  |  |
Spring Correctional Facility | Bureau Of Prisons B O P |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |
Number of beds in detention facility | 1,732 |  |  |  |  |
Expiration date | Nov. 30, 2021 |  |  |  |  |
Flightline Correctional Facility | Bureau Of Prisons B O P |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |
Number of beds in detention facility | 1,800 |  |  |  |  |
Expiration date | Nov. 30, 2021 |  |  |  |  |
North Lake Correctional Facility | Bureau Of Prisons B O P |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |
Number of beds in detention facility | 1,800 |  |  |  |  |
Expiration date | Sep. 30, 2022 |  |  |  |  |
Reeves County Detention Center I & II | Bureau Of Prisons B O P |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |
Number of beds in detention facility | 1,800 |  |  |  |  |
Expiration date | Sep. 30, 2022 |  |  |  |  |
Reeves County Detention Center III | Bureau Of Prisons B O P |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |
Number of beds in detention facility | 1,376 |  |  |  |  |
Expiration date | Jun. 30, 2022 |  |  |  |  |
Great Plains, Big Spring, Flightline, Northlake Correctional Facilities, Reeves County Detention Center I & II and Reeves County Detention Center III | Bureau Of Prisons B O P |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |
Revenues | $ |  |  |  |  |  | $ 145,000

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