XML 74 R63.htm IDEA: XBRL DOCUMENT
v3.20.2

Summary of Activity with NCM Included in Company's Consolidated Financial Statements (Parenthetical) (Detail) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2020 USD ($)
Equity Method Investments And Joint Ventures [Abstract] |
Company's beverage concessionaire advertising costs | $ 2,135

X
- Definition Cost of on-screen advertising time provided to beverage concessionaire. + References No definition available. + Details
Name: | cnk_CostOfOnScreenTimeProvidedToBeverageConcessionaire
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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