Condensed Parent Company Statements of Comprehensive Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Condensed Statement of Income Captions [Line Items]
Net (loss) income	$ 312.9	$ 191.5	$ (268.0)
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(40.2)	4.9	4.6
Cinemark Holdings, Inc.
Condensed Statement of Income Captions [Line Items]
Net (loss) income	309.7	188.2	(271.2)
Other comprehensive income (loss), net of tax
Unrealized gain (loss) due to fair value adjustments on interest rate swap agreements, net of taxes of $(2.8), $1.2 and $3.2, and net of settlements	1.8	(9.2)	32.2
Foreign currency translation adjustments	(40.2)	4.9	4.6
Total other comprehensive income (loss), net of tax	(38.4)	(4.3)	36.8
Comprehensive (loss) income attributable to Cinemark Holdings, Inc.	$ 271.3	$ 183.9	$ (234.4)