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Stockholders' Equity - Additional Information (Detail) - Restricted stock based awards - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Fair value of restricted common stock units issued by CoreCivic to certain of its employees and non-employee directors | $ 22.0 |  | $ 21.5
Vesting description | CoreCivic has established performance-based vesting conditions on a portion of the RSUs awarded to its officers and executive officers that, unless earlier vested under the terms of the agreements, are subject to vesting over a three-year period based upon the satisfaction of certain annual performance criteria. The RSUs awarded to officers and executive officers in 2021, 2022 and 2023 consist of a combination of awards with performance-based conditions and time-based conditions. Unless earlier vested under the terms of the RSU agreements, the RSUs with time-based vesting conditions vest in equal amounts over three years on the later of (i) the anniversary date of the grant or (ii) the delivery of the audited financial statements by the Company's independent registered public accountant for the applicable fiscal year. The RSUs with performance-based vesting conditions are divided into one-third increments, each of which is subject to vesting based upon satisfaction of certain annual performance criteria established at the beginning of the fiscal years ending December 31, 2021, 2022, and 2023 for the 2021 awards, December 31, 2022, 2023, and 2024 for the 2022 awards, and December 31, 2023, 2024, and 2025 for the 2023 awards, and which can be increased up to 150% or decreased to 0% based on performance relative to the annual performance criteria, and further increased or decreased using a modifier of 80% to 120% based on CoreCivic's total shareholder return relative to a peer group. Because the performance criteria for the fiscal years ending December 31, 2024 and 2025 have not yet been established, the values of the third RSU increment of the 2022 awards and of the second and third increments of the 2023 awards for financial reporting purposes will not be determined until such criteria are established. Time-based RSUs issued to other employees, unless earlier vested under the terms of the agreements, generally vest in equal amounts over three years on the later of (i) the anniversary date of the grant or (ii) the delivery of the audited financial statements by the Company's independent registered public accountant for the applicable fiscal year. RSUs issued to non-employee directors generally vest one year from the date of award. |  |
Allocated share-based compensation expense | $ 4.9 | $ 5.3 |
Restricted common stock units remained outstanding and subject to vesting | 3.9 |  |
Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Increase Decrease in vesting percentage based on performance relative to annual performance criteria | 0.00% |  |
Increase Decrease in vesting percentage based on shareholder return relative to peer group | 80.00% |  |
Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Increase Decrease in vesting percentage based on performance relative to annual performance criteria | 150.00% |  |
Increase Decrease in vesting percentage based on shareholder return relative to peer group | 120.00% |  |
General and Administrative |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Allocated share-based compensation expense | $ 4.4 | 4.9 |
Operating |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Allocated share-based compensation expense | $ 0.5 | $ 0.4 |
Employees And Non Employee Directors |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Restricted common stock units issued by CoreCivic | 1.9 |  | 2.1
Employees And Non Employee Directors | General and Administrative |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Restricted common stock units issued by CoreCivic | 1.7 |  | 1.9
Employee | Operating |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Restricted common stock units issued by CoreCivic | 0.2 |  | 0.2
Officers And Executive Officers |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Vesting period | 3 years |  |
Vesting description | CoreCivic has established performance-based vesting conditions on a portion of the RSUs awarded to its officers and executive officers that, unless earlier vested under the terms of the agreements, are subject to vesting over a three-year period based upon the satisfaction of certain annual performance criteria. The RSUs awarded to officers and executive officers in 2021, 2022 and 2023 consist of a combination of awards with performance-based conditions and time-based conditions. Unless earlier vested under the terms of the RSU agreements, the RSUs with time-based vesting conditions vest in equal amounts over three years on the later of (i) the anniversary date of the grant or (ii) the delivery of the audited financial statements by the Company's independent registered public accountant for the applicable fiscal year. The RSUs with performance-based vesting conditions are divided into one-third increments, each of which is subject to vesting based upon satisfaction of certain annual performance criteria established at the beginning of the fiscal years ending December 31, 2021, 2022, and 2023 for the 2021 awards, December 31, 2022, 2023, and 2024 for the 2022 awards, and December 31, 2023, 2024, and 2025 for the 2023 awards, and which can be increased up to 150% or decreased to 0% based on performance relative to the annual performance criteria, and further increased or decreased using a modifier of 80% to 120% based on CoreCivic's total shareholder return relative to a peer group. Because the performance criteria for the fiscal years ending December 31, 2024 and 2025 have not yet been established, the values of the third RSU increment of the 2022 awards and of the second and third increments of the 2023 awards for financial reporting purposes will not be determined until such criteria are established. |  |
Non Employee Directors |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Vesting period | 1 year |  |
Other Employees |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Vesting description | Time-based RSUs issued to other employees, unless earlier vested under the terms of the agreements, generally vest in equal amounts over three years on the later of (i) the anniversary date of the grant or (ii) the delivery of the audited financial statements by the Company's independent registered public accountant for the applicable fiscal year. |  |
Vesting period, continuous service requirement | 3 years |  |

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