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Summary of Activity with NCM Included in Company's Consolidated Financial Statements (Parenthetical) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Schedule Of Equity Method Investments [Line Items] |  |  |
Company's beverage concessionaire advertising costs | $ 2,605 | $ 11,478 | $ 11,965
Screen Advertising Rental Revenue |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Revenues earned under ESA | $ 4,828 |  |

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- Definition Cost of on-screen advertising time provided to beverage concessionaire. + References No definition available. + Details
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- Definition Revenues earned under exhibitor services agreement. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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