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Investments in Affiliates - Summary of Transactions with Each of the Company's Other Investees (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
AC JV, LLC | Film rentals and advertising |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Event fees paid | [1] | $ 2.7 | $ 7.1
Digital Cinema Distribution Coalition |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Content delivery fees paid | [1] | $ 0.1 | $ 0.1
[1] | Included in film rentals and advertising costs on the condensed consolidated statements of income (loss).

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