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
		Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenue		$ 610.7	$ 460.5
Admissions Revenues
Disaggregation of Revenue [Line Items]
Total revenue		311.0	235.8
Concession Revenues
Disaggregation of Revenue [Line Items]
Total revenue		235.8	173.0
Screen Advertising, Screen Rental and Promotional Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[1]	31.1	26.8
Other Revenues
Disaggregation of Revenue [Line Items]
Total revenue		32.8	24.9
U.S. Operating Segment
Disaggregation of Revenue [Line Items]
Total revenue	[2]	479.1	372.0
U.S. Operating Segment | Admissions Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[2]	244.7	191.8
U.S. Operating Segment | Concession Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[2]	186.8	141.1
U.S. Operating Segment | Screen Advertising, Screen Rental and Promotional Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[1],[2]	21.8	18.7
U.S. Operating Segment | Other Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[2]	25.8	20.4
International Operating Segment
Disaggregation of Revenue [Line Items]
Total revenue		131.6	88.5
International Operating Segment | Admissions Revenues
Disaggregation of Revenue [Line Items]
Total revenue		66.3	44.0
International Operating Segment | Concession Revenues
Disaggregation of Revenue [Line Items]
Total revenue		49.0	31.9
International Operating Segment | Screen Advertising, Screen Rental and Promotional Revenues
Disaggregation of Revenue [Line Items]
Total revenue	[1]	9.3	8.1
International Operating Segment | Other Revenues
Disaggregation of Revenue [Line Items]
Total revenue		$ 7.0	$ 4.5

[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.