Condensed Parent Company Balance Sheets (Detail) - USD ($) $ in Millions		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Liabilities
Accrued other current liabilities, including accounts payable to subsidiaries	[1]	$ 270.0	$ 239.2
Equity
Treasury stock, 6,002,568 and 6,378,492 shares, at cost, at December 31, 2023 and December 31, 2024, respectively		103.2	98.3	$ 95.4	$ 91.1
Cinemark Holdings, Inc.
Assets
Cash and cash equivalents		229.9	236.8
Interest receivable and other current assets		5.0	2.6
Long-term deferred tax asset		1.8	0.0
Investment in subsidiaries		890.6	591.2
Total assets		1,127.3	830.6
Liabilities
Current portion of long-term debt		457.9	0.0
Accrued other current liabilities, including accounts payable to subsidiaries		76.9	66.5
Long-term debt		0.0	454.4
Other long-term liabilities		(1.9)	(0.1)
Total liabilities		532.9	520.8
Commitments and contingencies (see Note 5)
Equity
Common stock, $0.001 par value: 300,000,000 shares authorized, 127,598,774 shares issued and 121,596,206 shares outstanding at December 31, 2023 and 128,700,226 shares issued and 122,321,734 shares outstanding at December 31, 2024		0.1	0.1
Additional paid-in-capital		1,276.9	1,244.3
Treasury stock, 6,002,568 and 6,378,492 shares, at cost, at December 31, 2023 and December 31, 2024, respectively		(103.2)	(98.3)
Accumulated deficit		(162.7)	(472.4)
Accumulated other comprehensive loss		(416.7)	(363.9)
Total equity		594.4	309.8
Total liabilities and equity		$ 1,127.3	$ 830.6

[1] The only difference between accrued other current liabilities for Holdings, as presented above, and CUSA is an additional $0.1 and $0.3 in “Other” as of December 31, 2023 and 2024, respectively.