XML 96 R85.htm IDEA: XBRL DOCUMENT
v3.21.2

Summary of Long Lived Asset Impairment Evaluations Performed by Assets Classification (Details) | 3 Months Ended
--- | ---
Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021
Goodwill |  |  |
Impaired Long Lived Assets Held And Used [Line Items] |  |  |
Long Lived Assets Impairment Valuation Multiple Description | N/A | N/A | N/A
Tradename Intangible Assets |  |  |
Impaired Long Lived Assets Held And Used [Line Items] |  |  |
Long Lived Assets Impairment Valuation Multiple Description | N/A | N/A | N/A
Other long-lived assets |  |  |
Impaired Long Lived Assets Held And Used [Line Items] |  |  |
Long Lived Assets Impairment Valuation Multiple Description |  | N/A | N/A
Other long-lived assets | Market Approach |  |  |
Impaired Long Lived Assets Held And Used [Line Items] |  |  |
Long Lived Assets Impairment Valuation Multiple Description | 3.1 to 6 times |  |

X
- Definition Long Lived Assets Impairment Valuation Multiple Description + References No definition available. + Details
Name: | cnk_LongLivedAssetsImpairmentValuationMultipleDescription
Namespace Prefix: | cnk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ImpairedLongLivedAssetsHeldAndUsedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_GoodwillMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=cnk_TradenameIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=cnk_OtherLongLivedAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=us-gaap_MarketApproachValuationTechniqueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |