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

Finance lease right of use asset, accumulated amortization.

No definition available.

Name:	cnk_FinanceLeaseRightOfUseAssetAccumulatedAmortization
Namespace Prefix:	cnk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant