Revenue Recognition - Changes in Advances and Deferred Revenues (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Change in Contract with Customer Liability [Line Items]
Amounts recognized as accounts receivable	$ 1.6
Other Deferred Revenues
Change in Contract with Customer Liability [Line Items]
Balance at January 1, 2024	221.6	[1]
Amounts recognized as accounts receivable	15.9	[1]
Cash received from customers in advance	235.4	[1]
Common units received from NCM	0.0	[1]
Interest accrued on NCM screen advertising advances	0.0	[1]
Revenue recognized during period	(245.2)	[1]
Foreign currency translation adjustments	(1.9)	[1]
Balance at September 30, 2024	225.8	[1]
N C M Screen Advertising Advances
Change in Contract with Customer Liability [Line Items]
Balance at January 1, 2024	328.4	[2]
Amounts recognized as accounts receivable	0.0	[2]
Cash received from customers in advance	0.0	[2]
Common units received from NCM	0.5	[2]
Interest accrued on NCM screen advertising advances	16.5	[2]
Revenue recognized during period	(24.3)	[2]
Foreign currency translation adjustments	0.0	[2]
Balance at September 30, 2024	$ 321.1	[2]

[1] Includes liabilities associated with outstanding gift cards and ticket vouchers, points, credits or rebates outstanding under the Company’s loyalty and subscription programs and revenue not yet recognized for screen advertising and other promotional activities. Amounts are classified as accounts payable and accrued expenses or other long-term liabilities on the condensed consolidated balance sheet.

[2] See Note 8 for the remaining maturity of NCM screen advertising advances as of September 30, 2024.