Earnings Per Share - Computations of Basic and Diluted Loss Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|||||||
| Earnings Per Share Disclosure [Line Items] | ||||||||||
| Net income attributable to Cinemark Holdings, Inc. | $ 122.8 | $ 49.5 | $ 255.8 | $ 104.1 | ||||||
| Income allocated to participating share-based awards | [1] | (1.2) | (0.6) | (2.2) | (1.3) | |||||
| Basic net income attributable to common stockholders | 121.6 | 48.9 | 253.6 | 102.8 | ||||||
| Add: Interest expense on convertible notes, net of tax | 0.0 | 0.0 | 0.0 | 4.6 | ||||||
| Add: Loss on warrants | [2] | 0.0 | 0.0 | 0.0 | 0.0 | |||||
| Diluted net income attributable to common stockholders | $ 121.6 | $ 48.9 | $ 253.6 | $ 107.4 | ||||||
| Basic weighted average shares outstanding | 114.7 | 113.8 | 114.9 | 115.5 | ||||||
| Common equivalent shares for performance stock units | 1.6 | 2.1 | 1.7 | 2.2 | ||||||
| Common equivalent shares for restricted stock units | 0.1 | 0.1 | 0.1 | 0.1 | ||||||
| Common equivalent shares for convertible notes | [3] | 0.0 | 7.8 | 0.0 | 21.6 | |||||
| Common equivalent shares for warrants | [2] | 0.0 | 0.0 | 0.0 | 0.0 | |||||
| Diluted weighted average shares outstanding | 116.4 | 123.8 | 116.7 | 139.4 | ||||||
| Basic earnings per share attributable to common stockholders | $ 1.06 | $ 0.43 | $ 2.2 | $ 0.88 | ||||||
| Diluted earnings per share attributable to common stockholders | $ 1.04 | $ 0.4 | $ 2.17 | $ 0.77 | ||||||
| ||||||||||
| X | ||||||||||
- Definition Common equivalent shares for restricted stock units No definition available.
|
| X | ||||||||||
- Definition Earnings Per Share Disclosure [Line Items] No definition available.
|
| X | ||||||||||
- Definition Loss on Warrants No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after tax, of interest recognized on convertible debt instrument excluding interest on principal required to be paid in cash. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of undistributed earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|