Supplemental Information to Condensed Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
Schedule Of Cash Flow Supplemental [Line Items]
Cash paid for income taxes, net		$ 15.7	$ 2.3
Cash transferred from restricted accounts	[1]	(10.8)	(2.9)
Noncash investing and financing activities:
Change in accounts payable and accrued expenses for the acquisition of theatre properties and equipment	[2]	(3.9)	4.2
Investment in NCMI/NCM - receipt of common units (see Note 8)		0.0	1.3
NCM
Noncash investing and financing activities:
Interest expense - NCM (see Note 8)		(17.0)	(17.5)
Cinemark Partners Second [Member]
Schedule Of Cash Flow Supplemental [Line Items]
Cash paid for interest by CUSA		111.2	100.3
Cinemark Holdings Inc [Member]
Schedule Of Cash Flow Supplemental [Line Items]
Cash paid for interest by Holdings	[3]	$ 131.9	$ 121.0

[1] Represents cash transferred out of collateral accounts during the period as a result of the cancellation of letters of credit to lenders upon the repayment of related debt.

[2] Additions to theatre properties and equipment included in accounts payable as of September 30, 2023 and December 31, 2022 were $8.1 and $12.0, respectively.

[3] Includes the cash interest paid by CUSA.