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Commitments And Contingencies (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2012
|
Dec. 31, 1997
|
|
| Loss Contingencies [Line Items] | ||
| Issuance of revenue bonds | $ 72.7 | |
| Outstanding principal balance of revenue bonds | 33.4 | |
| Outstanding principal balance of the bonds exceeded the purchase price option | $ 11.1 | |
| Number of pending legal proceedings that would have an effect on consolidated financial position, results of operations, or cash flows | 0 | |
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Hardeman County Correctional Facilities Corporation [Member]
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| Loss Contingencies [Line Items] | ||
| Number of beds at the facility | 2,016 |