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Other Investments - Additional Information (Detail) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Apr. 30, 2018 USD ($) | Dec. 31, 2020 USD ($) Studio | Dec. 31, 2019 USD ($) | Dec. 26, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 27, 2018 USD ($)
Maximum |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of voting interest |  | 50.00% |  |  |  |
Minimum |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of voting interest |  | 20.00% |  |  |  |
Digital Cinema Implementation Partners |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of voting interest |  | 33.00% |  |  |  |
Economic interest in Digital Cinema Implementation Partners |  | 24.30% |  |  |  |
Description of digital cinema deployment agreements |  | The DCDAs end on the earlier to occur of (i) the tenth anniversary of the "mean deployment date" for all digital projection systems scheduled to be deployed over a period of up to five years, or (ii) the date DCIP achieves "cost recoupment", each as defined in the DCDAs. |  |  |  |
Number of major motion picture studio, long-term digital cinema deployment agreements | Studio |  | 6 |  |  |  |
Operating lease right of use asset write off |  | $ 7,468 |  |  |  |
Operating lease right of use liabilities write off |  | 14,102 |  |  |  |
Gain on sale of asset |  | 6,634 |  |  |  |
Lease termination liability |  | 4,169 |  |  |  |
Remaining termination lease liability |  | 3,474 |  |  |  |
Fair value of projectors |  | 102,719 |  |  |  |
Reduction in investment in DCIP |  | 89,804 |  |  |  |
Other |  | $ 12,915 |  |  |  |
Digital Cinema Implementation Partners | Maximum |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Deployment period of digital cinema deployment agreements |  | 5 years |  |  |  |
AC JV, LLC | Film rentals and advertising |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Event fees |  | $ 3,740 |  | $ 15,376 | $ 12,481 |
Digital Cinema Distribution Coalition |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of voting interest |  | 14.60% |  |  |  |
Payments for content delivery services |  | $ 428 | $ 896 |  |  | $ 927
CNMK Texas Properties, LLC |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of voting interest | 50.00% |  |  |  |  |
Cash contributions | $ 20,000 |  |  |  |  |
CNMK Texas Properties, LLC | AWSR Investments, LLC |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |
Percentage of voting interest | 50.00% |  |  |  |  |
Cash contributions | $ 20,000 |  |  |  |  |
Management fee revenues |  | $ 34 | $ 64 |  |  |

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