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Income Taxes - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Income Taxes [Line Items] |  |  |  |
Minimum Distribution Percentage of Taxable Income to Qualify for Real Estate Investment Trust |  | 90.00%cxw_MinimumDistributionPercentageOfTaxableIncomeToQualifyForRealEstateInvestmentTrust |  |
Minimum distribution Percentage of Taxable Income to avoid Federal Income Taxes |  | 100.00%cxw_MinimumDistributionPercentageOfTaxableIncomeToAvoidFederalIncomeTaxes |  |
Tax benefits associated with equity-based compensation |  | $ 665,000 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation | $ 351,000 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation | $ 2,609,000 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
Effective tax rate |  | 3.40%us-gaap_EffectiveIncomeTaxRateContinuingOperations | (79.60%)us-gaap_EffectiveIncomeTaxRateContinuingOperations | 35.80%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Expected net tax benefit | 137,700,000 cxw_DeferredIncomeTaxExpenseBenefitFromRevaluationOfDeferredTaxAssetsAndLiabilities |  |  |
Liabilities for uncertain tax positions |  | $ 0 us-gaap_LiabilityForUncertainTaxPositionsCurrent | $ 0 us-gaap_LiabilityForUncertainTaxPositionsCurrent |

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- Definition Deferred Income Tax Expense (Benefit) from the Revaluation of Deferred Tax Assets and Liabilities resulting from the REIT conversion. + References No definition available. + Details
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- Definition Minimum Distribution Percentage of Taxable Income To Avoid Federal Income Taxes + References No definition available. + Details
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- Definition Minimum Distribution Percentage Of Taxable Income To Qualify For Real Estate Investment Trust + References No definition available. + Details
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- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6419406&loc=d3e23524-113945 + Details
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