Long Term Debt - Components of Long-Term Debt (Details) - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
CNK [Member]
Debt Instrument [Line Items]
Cinemark USA, Inc. term loan due 2030		$ 640.3	$ 645.1
Other		0.0	7.0
Total carrying value of long-term debt	[1]	2,365.3	2,432.1
Less: Current portion, net of unamortized debt issuance costs		463.4	7.8
Less: Debt discounts and debt issuance costs, net of accumulated amortization	[1]	31.5	33.0
Long-term debt, less current portion	[1]	1,870.4	2,391.3
CNK [Member] | 4.500% convertible senior notes due 2025
Debt Instrument [Line Items]
Senior notes		460.0	460.0
CNK [Member] | 8.750% senior secured notes due 2025
Debt Instrument [Line Items]
Senior notes		0.0	150.0
CNK [Member] | 5.875% senior notes due 2026
Debt Instrument [Line Items]
Senior notes		0.0	405.0
CNK [Member] | 5.250% senior notes due 2028
Debt Instrument [Line Items]
Senior notes		765.0	765.0
CNK [Member] | 7.00% senior notes due August 2032
Debt Instrument [Line Items]
Senior notes		500.0	0.0
CUSA [Member]
Debt Instrument [Line Items]
Total carrying value of long-term debt		1,905.3	1,972.1
Less: Current portion, net of unamortized debt issuance costs		6.4	7.8
Less: Debt discounts and debt issuance costs, net of accumulated amortization		28.5	27.5
Long-term debt, less current portion		$ 1,870.4	$ 1,936.8

[1] The only differences between the long-term debt for Holdings, as presented above, and the long-term debt for CUSA are the $460.0 4.50% Convertible Senior Notes due August 2025 and the related debt issuance costs. The following table sets forth, as of the periods indicated, the total long-term debt carrying value, current portion of long-term debt and debt issuance costs, net of amortization, for CUSA.