Treasury Stock and Share-Based Awards - Summary of Restricted Stock Award Activity (Parenthetical) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 8.5	$ 8.5
Restricted Stock [Member] | Field Incentive Compensation Plan 2025 Member
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 0.6
Cinemark Holdings Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted average period remaining compensation expense	1 year 7 months 6 days
Cinemark Holdings Inc [Member] | Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 0.7	$ 0.7