Revenue Recognition - Summary of Revenues Disaggregated Based on Major Type of Good or Service and by Reportable Operating Segment (Detail) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2024		Jun. 30, 2023		Jun. 30, 2024		Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Total revenue		$ 734.2		$ 942.3		$ 1,313.4		$ 1,553.0
CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue		734.2		942.3		1,313.4		1,553.0
Admissions Revenues | CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue		365.8		478.4		655.6		789.4
Concession Revenues | CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue		292.9		373.4		517.1		609.2
Screen Advertising, Screen Rental and Promotional Revenues | CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[1]	35.0		38.2		66.7		69.3
Other Revenue | CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue		40.5		52.3		74.0		85.1
U.S. Operating Segment
Disaggregation of Revenue [Line Items]
Total revenue	[2]	572.0		734.9		1,029.0		1,214.0
U.S. Operating Segment | Admissions Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[2]	287.4		373.4		519.2		618.1
U.S. Operating Segment | Concession Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[2]	231.4		296.3		410.0		483.1
U.S. Operating Segment | Screen Advertising, Screen Rental and Promotional Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[2]	22.3	[1]	24.7	[1]	43.3	[1]	46.5
U.S. Operating Segment | Other Revenue
Disaggregation of Revenue [Line Items]
Total revenue	[2]	30.9		40.5		56.5		66.3
International Operating Segment
Disaggregation of Revenue [Line Items]
Total revenue		162.2		207.4		284.4		339.0
International Operating Segment | Admissions Revenues
Disaggregation of Revenue [Line Items]
Total revenue		78.4		105.0		136.4		171.3
International Operating Segment | Concession Revenues
Disaggregation of Revenue [Line Items]
Total revenue		61.5		77.1		107.1		126.1
International Operating Segment | Screen Advertising, Screen Rental and Promotional Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[1]	12.7		13.5		23.4		22.8
International Operating Segment | Other Revenue
Disaggregation of Revenue [Line Items]
Total revenue		$ 9.6		$ 11.8		$ 17.5		$ 18.8

[1] Amount includes amortization of NCM screen advertising advances. See Screen Advertising Advances and Other Deferred Revenue below.

[2] U.S. segment revenue excludes intercompany transactions with the international operating segment. See Note 16 for the amount of intercompany eliminations for the periods presented.