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Summary of Revenues Disaggregated Based on Major Type of Good or Service and by Reportable Operating Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | [1] | Sep. 30, 2020 | [1] | Jun. 30, 2020 | [1] | Mar. 31, 2020 | [1] | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | $ 98,242 | $ 35,478 | $ 8,974 | $ 543,616 | $ 788,803 | $ 821,817 | $ 957,756 | $ 714,723 | $ 686,310 | [1] | $ 3,283,099 | $ 3,221,735
Admissions Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 356,508 |  | 1,805,321 | 1,834,173
Concession Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 231,046 |  | 1,161,083 | 1,108,793
Screen Advertising, Screen Rental and Promotional Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 62,531 |  | 164,727 | 139,860
Other Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 36,225 |  | 151,968 | 138,909
U.S. Operating Segment |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | [2] |  |  |  |  |  |  |  |  | 556,909 |  | 2,580,903 | 2,538,957
U.S. Operating Segment | Admissions Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | [2] |  |  |  |  |  |  |  |  | 291,636 |  | 1,431,790 | 1,461,151
U.S. Operating Segment | Concession Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | [2] |  |  |  |  |  |  |  |  | 189,561 |  | 936,241 | 892,391
U.S. Operating Segment | Screen Advertising, Screen Rental and Promotional Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | [2] |  |  |  |  |  |  |  |  | 46,199 |  | 128,839 | 78,591
U.S. Operating Segment | Other Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | [2] |  |  |  |  |  |  |  |  | 29,513 |  | 84,033 | 106,824
International Operating Segment |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 129,401 |  | 702,196 | 682,778
International Operating Segment | Admissions Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 64,872 |  | 373,531 | 373,022
International Operating Segment | Concession Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 41,485 |  | 224,842 | 216,402
International Operating Segment | Screen Advertising, Screen Rental and Promotional Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 16,332 |  | 35,888 | 61,269
International Operating Segment | Other Revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | $ 6,712 |  | $ 67,935 | $ 32,085
[1] | Quarterly results during the year ended December 31, 2020 were impacted by the COVID-19 pandemic (see Note 3) as well as impairment recorded (see Notes 1 and 11).
[2] | U.S. segment revenues exclude intercompany transactions with the international operating segment. See Note 21 for additional information on intercompany eliminations.

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