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Schedule of Calculation of Numerator and Denominator in Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  |  |  |  |  |  |  |  |  |  | $ 195,022 us-gaap_IncomeLossFromContinuingOperations | $ 304,592 us-gaap_IncomeLossFromContinuingOperations | $ 156,966 us-gaap_IncomeLossFromContinuingOperations
Loss from discontinued operations, net of taxes |  |  |  |  |  |  | (663)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | (2,739)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity |  | (355)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity |  |  | (3,757)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | (205)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Net income | 30,006 us-gaap_NetIncomeLoss | [1] | 57,546 us-gaap_NetIncomeLoss | 55,732 us-gaap_NetIncomeLoss | 51,738 us-gaap_NetIncomeLoss | 47,471 us-gaap_NetIncomeLoss | 51,843 us-gaap_NetIncomeLoss | 20,429 us-gaap_NetIncomeLoss | [2] | 181,092 us-gaap_NetIncomeLoss | [3] | 195,022 us-gaap_NetIncomeLoss | 300,835 us-gaap_NetIncomeLoss | 156,761 us-gaap_NetIncomeLoss
Weighted average shares and assumed conversions |  |  |  |  |  |  |  |  |  |  |  | 117,312 cxw_WeightedAverageSharesAndAssumedConversionsDiluted | 111,250 cxw_WeightedAverageSharesAndAssumedConversionsDiluted | 100,623 cxw_WeightedAverageSharesAndAssumedConversionsDiluted
Income from continuing operations |  |  |  |  |  |  |  |  |  |  |  | $ 1.68 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 2.77 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 1.58 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare
Loss from discontinued operations, net of taxes |  |  |  |  |  |  |  |  |  |  |  |  | $ (0.03)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare |
Net income | $ 0.26 us-gaap_EarningsPerShareBasic | [1] | $ 0.50 us-gaap_EarningsPerShareBasic | $ 0.48 us-gaap_EarningsPerShareBasic | $ 0.45 us-gaap_EarningsPerShareBasic | $ 0.41 us-gaap_EarningsPerShareBasic | $ 0.45 us-gaap_EarningsPerShareBasic | $ 0.19 us-gaap_EarningsPerShareBasic | [2] | $ 1.81 us-gaap_EarningsPerShareBasic | [3] | $ 1.68 us-gaap_EarningsPerShareBasic | $ 2.74 us-gaap_EarningsPerShareBasic | $ 1.58 us-gaap_EarningsPerShareBasic
Income from continuing operations |  |  |  |  |  |  |  |  |  |  |  | $ 1.66 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 2.73 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 1.56 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare
Loss from discontinued operations, net of taxes |  |  |  |  |  |  |  |  |  |  |  |  | $ (0.03)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare |
Net income | $ 0.25 us-gaap_EarningsPerShareDiluted | [1] | $ 0.49 us-gaap_EarningsPerShareDiluted | $ 0.48 us-gaap_EarningsPerShareDiluted | $ 0.44 us-gaap_EarningsPerShareDiluted | $ 0.41 us-gaap_EarningsPerShareDiluted | $ 0.44 us-gaap_EarningsPerShareDiluted | $ 0.19 us-gaap_EarningsPerShareDiluted | [2] | $ 1.78 us-gaap_EarningsPerShareDiluted | [3] | $ 1.66 us-gaap_EarningsPerShareDiluted | $ 2.70 us-gaap_EarningsPerShareDiluted | $ 1.56 us-gaap_EarningsPerShareDiluted
Basic Earnings Per Share |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  |  |  |  |  |  |  |  |  |  | 195,022 us-gaap_IncomeLossFromContinuingOperations / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember | 304,592 us-gaap_IncomeLossFromContinuingOperations / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember | 156,966 us-gaap_IncomeLossFromContinuingOperations / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember
Loss from discontinued operations, net of taxes |  |  |  |  |  |  |  |  |  |  |  |  | (3,757)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember | (205)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember
Net income |  |  |  |  |  |  |  |  |  |  |  | 195,022 us-gaap_NetIncomeLoss / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember | 300,835 us-gaap_NetIncomeLoss / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember | 156,761 us-gaap_NetIncomeLoss / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember
Weighted average common shares outstanding, basic |  |  |  |  |  |  |  |  |  |  |  | 116,109 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember | 109,617 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember | 99,545 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_BasicEarningsPerShareMember
Diluted Earnings Per Share |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  |  |  |  |  |  |  |  |  |  | 195,022 us-gaap_IncomeLossFromContinuingOperations / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember | 304,592 us-gaap_IncomeLossFromContinuingOperations / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember | 156,966 us-gaap_IncomeLossFromContinuingOperations / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember
Loss from discontinued operations, net of taxes |  |  |  |  |  |  |  |  |  |  |  |  | (3,757)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember | (205)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember
Net income |  |  |  |  |  |  |  |  |  |  |  | $ 195,022 us-gaap_NetIncomeLoss / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember | $ 300,835 us-gaap_NetIncomeLoss / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember | $ 156,761 us-gaap_NetIncomeLoss / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember
Weighted average common shares outstanding, diluted |  |  |  |  |  |  |  |  |  |  |  | 116,109 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember | 109,617 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember | 99,545 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding / cxw_BasicAndDilutedEarningsPerShareAxis = cxw_DilutedEarningsPerShareMember
Stock options |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive securities |  |  |  |  |  |  |  |  |  |  |  | 895 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 1,279 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 864 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember
Restricted stock based compensation |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive securities |  |  |  |  |  |  |  |  |  |  |  | 308 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 354 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember | 214 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
[1] | The earnings amounts in the fourth quarter of 2014 were unfavorably impacted by $27.8 million of non-cash impairments recorded to write down the book values of two of CCA's non-core facilities to the estimated fair values, as discussed in Note 5.
[2] | The earnings amounts in the second quarter of 2013 were negatively impacted by $36.3 million of expenses associated with debt refinancing transactions.
[3] | The earnings amounts in the first quarter of 2013 were favorably impacted by the net tax benefit resulting from the revaluation of certain deferred tax assets and liabilities associated with the REIT conversion effective January 1, 2013.

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