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Reconciliation of Income Tax Provision at Statutory Income Tax Rate and Effective Tax Rate (Detail)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Reconciliation of Provision of Income Taxes [Line Items]      
Statutory federal rate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Dividends paid deduction (31.10%)us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsDividends (30.70%)us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsDividends  
State taxes, net of federal tax benefit 0.80%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes 1.10%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes 1.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Permanent differences 0.10%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense 3.00%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense 0.70%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense
Impact of REIT election   (87.00%)cxw_PercentageOfTaxRateAttributableToNetTaxBenefit  
Other items, net (1.40%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments (1.00%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments (0.90%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments
Effective income tax rate, Total 3.40%us-gaap_EffectiveIncomeTaxRateContinuingOperations (79.60%)us-gaap_EffectiveIncomeTaxRateContinuingOperations 35.80%us-gaap_EffectiveIncomeTaxRateContinuingOperations