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Business Combinations - Additional Information (Detail) | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Apr. 08, 2016 USD ($) Leases Entity Bed Facility | Dec. 31, 2015 USD ($) Bed Facility | Mar. 31, 2016 USD ($) Bed
Business Acquisition [Line Items] |  |  |
Number of beds at the facility | Bed |  |  | 88,500
Revolving Credit Facility | $900.0 Million Revolving Credit Facility |  |  |
Business Acquisition [Line Items] |  |  |
Line of credit facility maximum borrowing capacity |  | $ 900,000,000 | $ 900,000,000
Subsequent Event | Revolving Credit Facility | $900.0 Million Revolving Credit Facility |  |  |
Business Acquisition [Line Items] |  |  |
Line of credit facility maximum borrowing capacity | $ 900,000,000 |  |
Avalon Correctional Services, Inc |  |  |
Business Acquisition [Line Items] |  |  |
Business acquisition, percentage of acquired stock |  | 100.00% |
Number of beds at the facility | Bed |  | 3,000 |
Number of facilities acquired | Facility |  | 11 |
Aggregate purchase price |  | $ 157,500,000 |
Avalon Correctional Services, Inc | The achievement of certain utilization milestones over 12 months following the acquisition | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Amounts due under earn-outs business combinations |  | 2,000,000 |
Avalon Correctional Services, Inc | The completion of and transition to a newly constructed facility that will deliver the contracted services provided at the Dallas Transitional Center |  |  |
Business Acquisition [Line Items] |  |  |
Amounts due under earn-outs business combinations |  | $ 5,500,000 |
Correctional Management, Inc | Subsequent Event |  |  |
Business Acquisition [Line Items] |  |  |
Business acquisition, percentage of acquired stock | 100.00% |  |
Number of beds at the facility | Bed | 600 |  |
Number of facilities acquired | Facility | 6 |  |
Aggregate purchase price | $ 35,000,000 |  |
Number of entities affiliated | Entity | 2 |  |
Number of facilities | Facility | 7 |  |
Number of facilities leased | Leases | 1 |  |

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