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Commitments and Contingencies - Additional Information (Details) $ in Millions | 3 Months Ended | 9 Months Ended
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Dec. 19, 2017 Claim | Sep. 30, 2020 USD ($) bed facility Installment
Commitments and Contingencies [Line Items] |  |
Estimate of possible loss |  | $ 19.4
Number of deferred payment installment related to payroll taxes | Installment |  | 2
Deferred payment related to payroll taxes amount |  | $ 27.6
Estimated construction existing active capital projects cost |  | 62.0
Cost already spent on existing active capital projects |  | 42.0
Remaining capital required for existing active capital projects |  | $ 20.0
Number of vacant beds at idle facilities marketed to potential customers | bed |  | 2,100
Number of marketed idle facilities | facility |  | 4
Property and Equipment, Net |  |
Commitments and Contingencies [Line Items] |  |
Carrying values of idle facilities marketed to potential customers |  | $ 50.5
Pending Litigation | Immigration Detainees Against Company |  |
Commitments and Contingencies [Line Items] |  |
Number of claims filed | Claim | 3 |
WASHINGTON | Pending Litigation | Immigration Detainees Against Company |  |
Commitments and Contingencies [Line Items] |  |
Number of claims filed | Claim | 2 |
CALIFORNIA | Pending Litigation | Immigration Detainees Against Company |  |
Commitments and Contingencies [Line Items] |  |
Number of claims filed | Claim | 1 |

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- Definition Carrying Values of Idle Facilities Marketed to Potential Customers + References No definition available. + Details
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