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Subsequent Events (Details) (USD $) | 0 Months Ended | 3 Months Ended | 0 Months Ended |  |  | 0 Months Ended |  | 0 Months Ended | 1 Months Ended
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May 07, 2013 | Mar. 31, 2013 bed | May 08, 2013 Subsequent Event | May 07, 2013 Subsequent Event Joe Corley Detention Center bed | Apr. 03, 2013 Credit Agreement Maximum | Apr. 03, 2013 Credit Agreement Minimum | Apr. 03, 2013 Line of Credit Term Loan BNP Paribas Subsequent Event | Apr. 03, 2013 Line of Credit Term Loan BNP Paribas Minimum Subsequent Event | Apr. 03, 2013 Line of Credit New Revolver BNP Paribas Subsequent Event | May 31, 2013 Restricted Stock [Member] Subsequent Event
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument basis spread on variable rate |  |  |  |  |  |  | 2.50% | 0.75% | 2.50% |
Debt Instrument, Description of Variable Rate Basis |  |  |  |  |  |  | LIBOR |  | LIBOR |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | $ 300,000,000 |  | $ 700,000,000 |
Line of Credit Facility, Interest Rate Description |  |  |  |  |  |  | LIBOR plus 2.50% (with a LIBOR floor of 0.75%) |  | LIBOR plus 2.50% (with no LIBOR floor) |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  | 0 |  |  |  |  |  |  |  | 300,000
Total leverage ratio |  |  |  |  | 5.75 |  |  |  |  |
Senior secured leverage ratio |  |  |  |  | 3.50 |  |  |  |  |
Interest coverage ratio |  |  |  |  |  | 3.00 |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.50 |  |  |  |  |  |  |  |  |
Authorized amount of stock repurchase |  |  | 100,000,000 |  |  |  |  |  |  |
Number of beds |  | 72,000 |  | 1,287 |  |  |  |  |  |
Purchase price of facility acquisition |  |  |  | $ 65,000,000 |  |  |  |  |  |

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- Definition The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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