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Summary Financial Information for National CineMedia (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | 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. 26, 2019 | Dec. 31, 2018 | Dec. 27, 2018
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) | $ (286,996) | [1] | $ (210,784) | $ (214,275) | $ (42,919) | $ 66,436 | $ 58,531 | $ 156,052 | $ 57,368 | $ (754,974) | [1] | $ 338,387 |  | $ 388,351 |
Net income (loss) attributable to Cinemark Holdings, Inc. | (239,256) | [1] | $ (147,592) | $ (170,389) | $ (59,591) | 26,334 | $ 31,353 | $ 100,971 | $ 32,728 | (616,828) | [1] | 191,386 |  | $ 213,827 |
Deferred charges and other assets, net | 33,199 |  |  |  |  | 39,114 |  |  |  | 33,199 |  | 39,114 |  |  |
Current liabilities | 606,441 |  |  |  |  | 708,800 |  |  |  | 606,441 |  | 708,800 |  |  |
Noncurrent liabilities | 4,157,512 |  |  |  |  | $ 3,670,895 |  |  |  | 4,157,512 |  | $ 3,670,895 |  |  |
NCM |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  | 89,887 |  |  | $ 444,800 |  | $ 441,400
Operating income (loss) |  |  |  |  |  |  |  |  |  | (59,671) |  |  | 155,700 |  | 154,300
Net income (loss) attributable to Cinemark Holdings, Inc. |  |  |  |  |  |  |  |  |  | (115,753) |  |  | 98,800 |  | $ 98,400
Current assets | 142,566 |  |  |  |  |  |  |  |  | 142,566 |  |  | 185,400 |  |
Deferred charges and other assets, net | 685,643 |  |  |  |  |  |  |  |  | 685,643 |  |  | 706,600 |  |
Current liabilities | 46,872 |  |  |  |  |  |  |  |  | 46,872 |  |  | 125,500 |  |
Noncurrent liabilities | 1,072,207 |  |  |  |  |  |  |  |  | 1,072,207 |  |  | 947,800 |  |
Members' deficit | $ (290,870) |  |  |  |  |  |  |  |  | $ (290,870) |  |  | $ (181,300) |  |
[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).

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