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Investment in National CineMedia Inc. - Summary of Activity with NCM Included in Company's Consolidated Financial Statements (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Impairment of long-lived and other assets |  | $ 0.0 | $ 2.0 | $ 0.0 |  | $ 12.1
Investment In NCMI |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance |  |  |  | 18.1 |  |
Screen rental revenue earned under ESA | [1] |  |  | 0.0 |  |
Interest accrued related to significant financing component |  |  |  | 0.0 |  |
Receipt of common units due to annual common unit adjustment | [2] |  |  | 0.0 |  |
Net gain on investment in NCMI |  | 11.6 | $ 4.7 | 12.7 | [3] | $ 13.9
Amortization of screen advertising advances |  |  |  | 0.0 |  |
Ending Balance |  | 30.8 |  | 30.8 |  |
N C M Screen Advertising Advances |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance |  |  |  | (328.4) |  |
Screen rental revenue earned under ESA | [1] |  |  | 0.0 |  |
Interest accrued related to significant financing component |  |  |  | (16.5) |  |
Receipt of common units due to annual common unit adjustment | [2] |  |  | (0.5) |  |
Net gain on investment in NCMI | [3] |  |  | 0.0 |  |
Amortization of screen advertising advances |  |  |  | 24.3 |  |
Ending Balance |  | (321.1) |  | (321.1) |  |
Other Revenue |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance |  |  |  | 0.0 |  |
Screen rental revenue earned under ESA | [1] |  |  | (16.3) |  |
Interest accrued related to significant financing component |  |  |  | 0.0 |  |
Receipt of common units due to annual common unit adjustment | [2] |  |  | 0.0 |  |
Net gain on investment in NCMI | [3] |  |  | 0.0 |  |
Amortization of screen advertising advances |  |  |  | (24.3) |  |
Ending Balance |  | (40.6) |  | (40.6) |  |
Interest Expense - NCM |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance |  |  |  | 0.0 |  |
Screen rental revenue earned under ESA | [1] |  |  | 0.0 |  |
Interest accrued related to significant financing component |  |  |  | 16.5 |  |
Receipt of common units due to annual common unit adjustment | [2] |  |  | 0.0 |  |
Net gain on investment in NCMI | [3] |  |  | 0.0 |  |
Amortization of screen advertising advances |  |  |  | 0.0 |  |
Ending Balance |  | 16.5 |  | 16.5 |  |
Cash Received |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Beginning Balance | [4] |  |  | 0.0 |  |
Screen rental revenue earned under ESA | [1],[4] |  |  | 14.7 |  |
Interest accrued related to significant financing component | [4] |  |  | 0.0 |  |
Receipt of common units due to annual common unit adjustment | [2],[4] |  |  | 0.0 |  |
Net gain on investment in NCMI | [3],[4] |  |  | 0.0 |  |
Amortization of screen advertising advances | [4] |  |  | 0.0 |  |
Ending Balance | [4] | $ 14.7 |  | $ 14.7 |  |
[1] | 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 $6.4.
[2] | See Common Unit Adjustments below.
[3] | See Investment in National CineMedia below.
[4] | The Company had a receivable from NCM of $1.6 as of September 30, 2024

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