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Impairment of Long-Lived Assets - Additional Information (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($)
Impairment Or Disposal Of Tangible Assets Disclosure [Abstract] |
Estimated aggregate fair value of long-lived assets impaired during current period | $ 16,295

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- Definition Estimated aggregate fair value of long lived assets impaired during current period. + References No definition available. + Details
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Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_ImpairmentOrDisposalOfTangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration