Supplemental Information to Condensed Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Schedule Of Cash Flow Supplemental [Line Items]
Cash paid for income taxes, net		$ 0.9	$ 0.7
Noncash investing and financing activities:
Change in accounts payable and accrued expenses for the acquisition of theatre properties and equipment	[1]	(5.1)	(1.2)
NCM
Noncash investing and financing activities:
Interest expense - NCM		(5.7)	(5.8)
Cinemark Partners Second [Member]
Schedule Of Cash Flow Supplemental [Line Items]
Cash paid for interest by CUSA		40.6	42.6
Cinemark Holdings Inc [Member]
Schedule Of Cash Flow Supplemental [Line Items]
Cash paid for interest by Holdings	[2]	$ 51.0	$ 53.0

[1] Additions to theatre properties and equipment included in accounts payable as of March 31, 2023 and December 31, 2022 were $6.9 and $12.0, respectively.

[2] Includes the cash interest paid by CUSA.