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v3.25.1

Treasury Stock and Share-Based Awards - Summary of Restricted Stock and Restricted Stock Unit Award Activity (Detail) - USD ($) shares in Thousands, $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Restricted Stock (Member) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of performance stock units that vested during the period |  | 1,180 |  |  |
Fair value of restricted stock that vested during the period |  | $ 35.1 |  | $ 12.5 |
Compensation expense recognized during the period |  | 4.5 |  | 4.2 |
Income tax benefit related to vested restricted stock |  | 6.7 |  | $ 2.2 |
Restricted Stock Units (RSUs) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Estimated remaining expense | [1] | $ 26.5 |  |  |
Performance Shares [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of performance stock units that vested during the period |  | 800 |  | 100 |
Fair value of restricted stock that vested during the period |  | $ 20.6 |  | $ 2.1 |
Accumulated dividends paid upon vesting of performance stock units |  | 0.1 |  | 0.1 |
Compensation expense recognized during the period |  | 3.5 |  | 2.2 |
Income tax benefit related to vested restricted stock |  | 3.6 |  | 0.1 |
Cinemark Holdings Inc [Member] | Restricted Stock (Member) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Fair value of restricted stock that vested during the period |  | 0.0 |  | 0.0 |
Compensation expense recognized during the period |  | 0.3 |  | 0.0 |
Income tax benefit related to vested restricted stock |  |  |  | 0.4 |
Cinemark Holdings Inc [Member] | Restricted Stock Units (RSUs) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Estimated remaining expense |  | 0.3 |  |  |
Cinemark Partners Second [Member] | Restricted Stock (Member) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Fair value of restricted stock that vested during the period |  | 35.1 |  | 3.8 | [2]
Compensation expense recognized during the period |  | 4.2 | [2] | 12.5 |
Income tax benefit related to vested restricted stock |  | 6.7 |  | $ 2.2 |
Cinemark Partners Second [Member] | Restricted Stock Units (RSUs) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Estimated remaining expense |  | $ 26.2 |  |  |
[1] | The weighted average period over which this remaining compensation expense will be recognized by both Holdings and CUSA is approximately 1.8 years.
[2] | Compensation expense for the three months ended March 31, 2025 includes approximately $0.3 related to a portion of the short-term field incentive compensation plan for 2025 to be settled in restricted stock.

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