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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) Facility | Dec. 31, 2019 USD ($) | Dec. 31, 2018 | Jan. 01, 2019 USD ($)
Organization And Operations [Line Items] |  |  |  |
Restricted cash | $ 23,549 | $ 26,973 |  |
Accounts receivable, net of credit loss reserve | 267,705 | 280,785 |  |
Accounts receivable, credit loss reserve | $ 6,100 | 3,200 |  |
Number of facilities accounted for as service concession arrangements | Facility | 4 |  |  |
Equity method investment description | Investments in affiliates that are equal to or less than 50%-owned over which CoreCivic can exercise significant influence are accounted for using the equity method of accounting. |  |  |
Percentage of likelihood required for a tax position to be measured | 50.00% |  |  |
ROU asset | $ 194,080 | 108,118 |  |
Lease liability | 166,415 |  |  |
Net charge to accumulated deficit | $ (446,519) | (446,252) |  |
Weighted average discount rate associated with the operating leases | 6.20% |  |  |
Accounting Standards Update 2016-02 |  |  |  |
Organization And Operations [Line Items] |  |  |  |
ROU asset | $ 194,100 | $ 108,100 |  | $ 115,600
Lease liability |  |  |  | $ 82,900
Weighted average discount rate associated with the operating leases |  |  |  | 5.30%
Revision of Prior Period Accounting Standards Update Adjustment | Accounting Standards Update 2016-02 |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Net charge to accumulated deficit |  |  |  | $ 29,900
Revision of Prior Period Accounting Standards Update Adjustment | Accounting Standards Update 2016-13 |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Net charge to accumulated deficit | $ 1,000 |  |  |
Government Contracts Concentration Risk | Sales Revenue, Net | Federal Correctional And Detention Authorities |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Percentage of revenues generated from government management contracts | 52.00% | 51.00% | 48.00% |
Government Contracts Concentration Risk | Sales Revenue, Net | United States Immigration And Customs Enforcement |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Percentage of revenues generated from government management contracts | 28.00% | 29.00% | 25.00% |
Government Contracts Concentration Risk | Sales Revenue, Net | United States Marshals Service |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Percentage of revenues generated from government management contracts | 21.00% | 17.00% | 17.00% |
Government Contracts Concentration Risk | Sales Revenue, Net | Federal Bureau Of Prisons |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Percentage of revenues generated from government management contracts | 3.00% | 5.00% | 6.00% |
Government Contracts Concentration Risk | Sales Revenue, Net | State Correctional Authorities |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Percentage of revenues generated from government management contracts | 33.00% | 34.00% | 39.00% |
Minimum |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Renewal of contract terms | 2 years |  |  |
Maximum |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Renewal of contract terms | 5 years |  |  |
SSA Baltimore Property and Lansing Correctional Facility |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Restricted cash | $ 10,300 | $ 27,000 |  |
GRES |  |  |  |
Organization And Operations [Line Items] |  |  |  |
Restricted cash | $ 13,200 |  |  |

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