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Other Investments - Schedule of distributions and warranty reimbursements from DCIP (Details) - DCIP [Member] - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Warranty reimbursements | [1] | $ 0.0 | $ (0.1) | $ 0.0 | $ (0.8)
Distributions from DCIP | [2] | $ 3.7 | $ 6.5 | $ 3.7 | $ 6.5
[1] | Recorded as a reduction of utilities and other costs on the condensed consolidated statements of loss.
[2] | Cash distributions received from DCIP are not treated as a reduction of the investment balance because, as discussed above, the Company's equity investment in DCIP is zero. Reflected as distributions from DCIP on the condensed consolidated statements of loss.

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- Definition Cash distributions received from DCIP in excess of the carrying value of the Company's investment. + References No definition available. + Details
Name: | cnk_DistributionsFromDcip
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Reimbursements received from affiliate for warranty costs on digital projection equipment. + References No definition available. + Details
Name: | cnk_WarrantyReimbursementsFromAffiliate
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=cnk_DcipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |