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Impact of COVID-19 - Additional Information (Detail) - 12 months ended Dec. 31, 2020 $ in Thousands | USD ($) | USD ($) Domestic | USD ($) International | Domestic | International
--- | --- | --- | --- | --- | ---
Unusual Or Infrequent Item [Line Items] |  |  |  |  |
Restructuring costs | $ 20,369 |  |  |  |
Impact of COVID-19 |  |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |  |
Unpaid and accrued restructuring costs | 6,741 | $ 6,741 | $ 6,741 |  |
Impact of COVID-19 |  |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |  |
Number of domestic theaters reopened |  | 217 | 129 |  |
Restructuring costs | $ 20,369 |  |  |  |
Number of Theaters |  |  |  | 15 | 9

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