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Commitments, Contingencies and Other (Details Textual) $ in Thousands, AUD in Millions |  |  |  |  |  | 9 Months Ended |  |  |  |
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Nov. 03, 2015 | Oct. 01, 2015 bed | Jun. 01, 2015 USD ($) | May. 30, 2015 USD ($) | May. 14, 2015 shares | Sep. 30, 2015 USD ($) | Oct. 28, 2015 bed inmate | Sep. 30, 2015 AUD facility bed | Sep. 30, 2015 USD ($) facility bed | Jul. 06, 2015 facility bed | Sep. 30, 2014 AUD | Sep. 30, 2014 USD ($)
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Estimated construction capital project cost |  |  |  |  |  | $ 159,000 |  |  |  |  |  |
Cost already spent on existing capital projects |  |  |  |  |  | 51,000 |  |  |  |  |  |
Remaining capital required for capital projects |  |  |  |  |  | $ 108,000 |  |  |  |  |  |
Number of vacant beds at idle facilities marketed to potential customers | bed |  |  |  |  |  |  |  | 3,422 | 3,422 |  |  |
Number of marketed idle facilities | facility |  |  |  |  |  |  |  | 4 | 4 |  |  |
Property and Equipment |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Carrying values of idle facilities marketed to potential customers |  |  |  |  |  |  |  |  | $ 34,500 |  |  |
National Australia Bank Limited | Ravenhall | Non-Recourse Debt |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Contributions in aid of construction |  |  |  |  |  |  |  |  | 80,200 |  |  |
National Australia Bank Limited | Ravenhall | Non-Recourse Debt | Construction Facility |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  | AUD 791.0 | $ 552,000 |  | AUD 791.0 | $ 552,000
Facility management contract | Broward Transition Center |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of beds in a facility | bed |  |  |  |  |  |  |  | 700 | 700 |  |  |
Chief Executive Officer | Third Amendment to the Third Amended and Restated Executive Employment Agreement |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Annual base salary |  |  | $ 1,000 | $ 1,215 |  |  |  |  |  |  |  |
Maximum performance award as percent of annual base salary |  |  | 150.00% | 100.00% |  |  |  |  |  |  |  |
Performance-Based Restricted Stock | Chief Executive Officer | Third Amendment to the Third Amended and Restated Executive Employment Agreement |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Granted shares | shares |  |  |  |  | 25,000 |  |  |  |  |  |  |
Oklahoma, Michigan and California | Activation Of Facilities Contract |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of company-owned facilities | facility |  |  |  |  |  |  |  |  |  | 3 |  |
Number of beds in a facility | bed |  |  |  |  |  |  |  |  |  | 4,320 |  |
Subsequent Event | Facility management contracts and customer relationships | Northwest Detention Center |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of beds in a facility | bed |  | 1,575 |  |  |  |  |  |  |  |  |  |
Contract term, operation of facility |  | 9 years 6 months |  |  |  |  |  |  |  |  |  |
Subsequent Event | Facility management contract | Arizona State Prison Kingman |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of beds in a facility | bed |  |  |  |  |  |  | 3,400 |  |  |  |  |
Number of inmates, capacity | inmate |  |  |  |  |  |  | 1,700 |  |  |  |  |
Subsequent Event | Facility management contract | Department of Homeland Security |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Contract term, operation of facility | 5 years |  |  |  |  |  |  |  |  |  |  |

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