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Lease Accounting - Additional Information (Detail) $ in Thousands	Mar. 31, 2020 USD ($) Agreement
Theatres
Lease [Line Items]
Noncancelable lease payments payable under operating lease, lease not yet commenced | $	$ 220,403
Equipment
Lease [Line Items]
Number of noncancelable lease agreements signed, but not yet commenced | Agreement	0

X

- Definition

Lease.

+ References

No definition available.

+ Details

Name:	cnk_LeaseLineItems
Namespace Prefix:	cnk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Noncancelable lease payments payable under lessee operating lease lease not yet commenced.

+ References

No definition available.

+ Details

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

X

- Definition

Number of noncancelable lease agreements, lease not yet commenced.

+ References

No definition available.

+ Details

Name:	cnk_NumberOfNoncancelableLeaseAgreementsLeaseNotYetCommenced
Namespace Prefix:	cnk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=cnk_TheatresMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_EquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: