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Schedule of Operating and Finance Right-of-Use Assets and Lease Liabilities (Parenthetical) (Detail) $ in Thousands | Sep. 30, 2019 USD ($)
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Leases [Abstract] |
Finance lease assets, accumulated amortization | $ 57,506

X
- Definition Finance lease right of use asset, accumulated amortization. + References No definition available. + Details
Name: | cnk_FinanceLeaseRightOfUseAssetAccumulatedAmortization
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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