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Summary of Potential Number of Shares Vesting under Restricted Stock Unit Awards (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014
Schedule of Restricted Stock Unit [Line Items] |
Number of shares vesting at IRR level of at least 8.5% | 65,832
Number of shares vesting at IRR level of at least 10.5% | 131,683
Number of shares vesting at IRR level of at least 12.5% | 197,515
Fair value of shares vesting at IRR level of at least 8.5% | $ 1,879
Fair value of shares vesting at IRR level of at least 10.5% | 3,758
Fair value of shares vesting at IRR level of at least 12.5% | $ 5,637

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- Definition Number of shares vesting at an IRR level of at least 8.5%. + References No definition available. + Details
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Period Type: | duration

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- Definition Number of shares vesting at an IRR level of at least 10.5%. + References No definition available. + Details
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- Definition Number of shares vesting at an IRR level of at least 12.5%. + References No definition available. + Details
Name: | cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastTwelvePointFivePercent
Namespace Prefix: | cnk_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Grant date fair value of units that would vest at an IRR level of at least 8.5%. + References No definition available. + Details
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Namespace Prefix: | cnk_
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X
- Definition Grant date fair value of units that would vest at an IRR level of at least 10.5%. + References No definition available. + Details
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Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
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X
- Definition Grant date fair value of units that would vest at an IRR level of at least 12.5%. + References No definition available. + Details
Name: | cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastTwelvePointFivePercent
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration