Treasury Stock and Share-Based Awards - Summary of Restricted Stock Award Activity (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 4.5	$ 4.2
Restricted Stock [Member] | Field Incentive Compensation Plan 2024 Member
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 0.3
Cinemark Holdings Inc [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted average period remaining compensation expense	1 year 9 months 18 days
Cinemark Holdings Inc [Member] | Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 0.3	$ 0.0