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Revenue Recognition - Changes in Advances and Deferred Revenues (Detail) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
NCM |  |  |
Change in Contract with Customer Liability [Line Items] |  |  |
Amounts recognized as accounts receivable |  | $ 1.6 | $ 2.1
Other Deferred Revenues |  |  |
Change in Contract with Customer Liability [Line Items] |  |  |
Balance at January 1, 2025 | [1] | 250.8 |
Amounts recognized as accounts receivable | [1] | 2.7 |
Cash received from customers in advance | [1] | 278.4 |
Interest accrued related to significant financing component | [1] | 0.0 |
Revenue recognized during period | [1] | (283.1) |
Foreign currency translation adjustments | [1] | (0.1) |
Balance at September 30, 2025 | [1] | 248.7 | 250.8
N C M Screen Advertising Advances |  |  |
Change in Contract with Customer Liability [Line Items] |  |  |
Balance at January 1, 2025 |  | 318.5 |
Amounts recognized as accounts receivable |  | 0.0 |
Cash received from customers in advance |  | 0.0 |
Interest accrued related to significant financing component |  | 16.0 |
Revenue recognized during period |  | (24.4) |
Foreign currency translation adjustments |  | 0.0 |
Balance at September 30, 2025 |  | $ 310.1 | $ 318.5
[1] | Includes liabilities associated with outstanding gift cards and discount ticket vouchers, points, credits or rebates outstanding under the Company’s loyalty and subscription programs and revenue collected in advance 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.

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