Condensed Parent Company Statements of Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Revenue	$ 3,049.5	$ 3,066.7	$ 2,454.7
Income tax (expense) benefit	60.1	(29.9)	(3.0)
Net Income (Loss)	309.7	188.2	(271.2)
Cinemark Holdings, Inc.
Condensed Financial Statements, Captions [Line Items]
Revenue	0.0	0.0	0.0
Cost of operations	3.7	3.3	2.9
Operating (loss) income	(3.7)	(3.3)	(2.9)
Interest expense	(24.1)	(24.1)	(24.1)
Interest income	12.3	11.8	3.8
Loss before income taxes and equity in (loss) income of subsidiaries	(15.5)	(15.6)	(23.2)
Income tax (expense) benefit	4.3	(1.5)	(16.1)
Equity in (loss) income of subsidiaries, net of taxes	320.9	205.3	(231.9)
Net Income (Loss)	$ 309.7	$ 188.2	$ (271.2)