Lease Accounting - Additional Information (Detail) $ in Millions	Jun. 30, 2025 USD ($)
Theatres
Lease [Line Items]
Contractual minimum lease payments payable under operating lease, lease not yet commenced	$ 43.4

Contractual minimum lease payments payable under lessee operating lease lease not yet commenced.

No definition available.

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