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Investment in NCMI/NCM - Summary of Activity with NCM Included in Company's Consolidated Financial Statements (Detail) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Impairment of long-lived and other assets |  | $ 2,000,000 | $ 15,200,000 | $ 12,100,000 |  | $ 107,500,000
Investment In NCMI |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance |  |  |  | 9,600,000 |  |
Equity in income (loss) of affiliates | [1] |  |  | (3,200,000) |  |
Unrealized gain on investment in NCMI |  | 4,700,000 |  | 13,900,000 | [2] |
Impairment of long-lived and other assets |  |  |  | (700,000) |  |
Ending Balance |  | 19,600,000 |  | 19,600,000 |  |
N C M Screen Advertising Advances |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance |  |  |  | (338,200,000) |  |
Interest accrued related to significant financing component | [3] |  |  | 17,000,000 |  |
Amortization of screen advertising advances | [4] |  |  | 24,300,000 |  |
Ending Balance |  | (330,900,000) |  | (330,900,000) |  |
Equity in Loss |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance | [1] |  |  | 0 |  |
Equity in income (loss) of affiliates | [1] |  |  | (3,200,000) |  |
Ending Balance | [1] | (3,200,000) |  | (3,200,000) |  |
Other Revenue |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance | [4] |  |  | 0 |  |
Screen rental revenue earned under ESA | [5] |  |  | 16,000,000 |  |
Amortization of screen advertising advances | [4] |  |  | (24,300,000) |  |
Ending Balance | [4] | (8,300,000) |  | (8,300,000) |  |
Interest Expense - NCM |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance | [4] |  |  | 0 |  |
Interest accrued related to significant financing component |  |  |  | 17,000,000 |  |
Ending Balance |  | 17,000,000 |  | 17,000,000 |  |
Cash Received |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance |  |  |  | 0 |  |
Screen rental revenue earned under ESA | [5] |  |  | 10,400,000 |  |
Ending Balance | [4] | $ 10,400,000 |  | $ 10,400,000 |  |
[1] | Equity in loss was recorded through April 11, 2023, the date NCM filed its bankruptcy petition, after which the Company applied the fair value accounting method as discussed below.
[2] | See Investment in National CineMedia below.
[3] | See Note 8 for the maturity of NCM screen advertising advances as of September 30, 2023.
[4] | The Company had a receivable from NCM of $5.6 as of September 30, 2023
[5] | Amounts include the per patron and per digital screen theatre access fees, net of amounts due to NCM for on-screen advertising time provided to the Company's beverage concessionaire of approximately $7.1.

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