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		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Total revenue		$ 874.8	$ 650.4	$ 2,427.8	$ 1,855.0
CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue		874.8	650.4	2,427.8	1,855.0
Admissions Revenues | CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue		443.8	324.6	1,233.2	942.3
Concession Revenues | CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue		339.8	253.6	949.0	712.6
Screen Advertising, Screen Rental and Promotional Revenues | CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[1]	39.2	31.9	108.5	91.4
Other Revenue | CNK [Member]
Disaggregation of Revenue [Line Items]
Total revenue		52.0	40.3	137.1	108.7
U.S. Operating Segment
Disaggregation of Revenue [Line Items]
Total revenue	[2]	682.5	511.7	1,896.5	1,484.5
U.S. Operating Segment | Admissions Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[2]	350.4	257.6	968.5	759.1
U.S. Operating Segment | Concession Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[2]	268.0	200.8	751.1	576.5
U.S. Operating Segment | Screen Advertising, Screen Rental and Promotional Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[1],[2]	23.0	20.6	69.5	60.7
U.S. Operating Segment | Other Revenue
Disaggregation of Revenue [Line Items]
Total revenue	[2]	41.1	32.7	107.4	88.2
International Operating Segment
Disaggregation of Revenue [Line Items]
Total revenue		192.3	138.7	531.3	370.5
International Operating Segment | Admissions Revenues
Disaggregation of Revenue [Line Items]
Total revenue		93.4	67.0	264.7	183.2
International Operating Segment | Concession Revenues
Disaggregation of Revenue [Line Items]
Total revenue		71.8	52.8	197.9	136.1
International Operating Segment | Screen Advertising, Screen Rental and Promotional Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[1]	16.2	11.3	39.0	30.7
International Operating Segment | Other Revenue
Disaggregation of Revenue [Line Items]
Total revenue		$ 10.9	$ 7.6	$ 29.7	$ 20.5

[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.