Summary of Activity with NCM Included in Company's Consolidated Financial Statements (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Equity Method Investments And Joint Ventures [Abstract]
Company's beverage concessionaire advertising costs	$ 11,110	$ 10,523	$ 9,819

Cost of on-screen advertising time provided to beverage concessionaire.

No definition available.

Name:	cnk_CostOfOnScreenTimeProvidedToBeverageConcessionaire
Namespace Prefix:	cnk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration