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Dividends (Parenthetical) (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Dividend Declared [Line Items] |  |  |
Dividends related to outstanding restricted stock units | $ 530 cnk_DividendsAccruedOnUnvestedRestrictedStockUnits | $ 772 cnk_DividendsAccruedOnUnvestedRestrictedStockUnits | $ 894 cnk_DividendsAccruedOnUnvestedRestrictedStockUnits
Effective Date of change in amount of quarterly dividend | Aug. 15, 2013 |  |
Revised quarterly dividend | $ 0.25 cnk_RevisedQuarterlyDividend |  |

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- Details
Name: | cnk_DividendDeclaredLineItems
Namespace Prefix: | cnk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of dividends accrued on unvested restricted stock units to be paid upon vesting. + References No definition available. + Details
Name: | cnk_DividendsAccruedOnUnvestedRestrictedStockUnits
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The date on which the company's board of directors raised its quarterly dividend. + References No definition available. + Details
Name: | cnk_EffectiveDateOfChangeInAmountOfQuarterlyDividend
Namespace Prefix: | cnk_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of revised quarterly dividend per common share. + References No definition available. + Details
Name: | cnk_RevisedQuarterlyDividend
Namespace Prefix: | cnk_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration