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Condensed Parent Company Statements of Comprehensive Income (Parenthetical) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Condensed Statement of Income Captions [Line Items] |  |  |
Unrealized gain due to fair value adjustments on interest rate swap agreements, tax | $ 3,532 | $ 2,692 | $ 1,243
Cinemark Holdings, Inc. |  |  |
Condensed Statement of Income Captions [Line Items] |  |  |
Unrealized gain due to fair value adjustments on interest rate swap agreements, tax | $ 3,532 | $ 2,692 | $ 1,243

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- Definition Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e640-108580 + Details
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