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Investment in RealD (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Investment in Marketable Securities - Real D (Textual) [Abstract] |  |  |
Exercise price of options | $ 0.00667 |  |
Number of options to purchase common stock |  | 1,085,828 |
Additional options earned to purchase common stock of RealD | 136,952 |  |
Approximate increase in investment in RealD and its deferred lease incentive liability | $ 3,402 |  |
Number of shares owned in RealD | 1,222,780 |  |
Estimated fair value of company owned shares in RealD | 9,709 | 27,993 |
Unrealized holding loss | 21,694 |  |
Cumulative net unrealized holding losses from accumulated other comprehensive income (loss) to earnings | 12,610 |  |
Investment in Real D [Member] |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |
Investment in RealD through options | 3,402 | 18,909 |
Investment in Marketable Securities - Real D (Textual) [Abstract] |  |  |
Estimated fair value of company owned shares in RealD | $ 9,709 | $ 27,993 | $ 0

X
- Definition Number of additional options to purchase common shares of RealD earned during period. + References No definition available. + Details
Name: | cnk_AdditionalOptionsToPurchaseCommonStockOfCompanyThree
Namespace Prefix: | cnk_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cumulative unrealized holding losses reclassified to earnings. + References No definition available. + Details
Name: | cnk_CumulativeHoldingLossesReclassifiedToEarnings
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate exercise price of options to purchase common shares of Real D. + References No definition available. + Details
Name: | cnk_ExercisePriceOfVestedOptionsToPurchaseCommonStockOfCompanyThree
Namespace Prefix: | cnk_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of Real D options earned under license agreement. + References No definition available. + Details
Name: | cnk_FairValueOfOptionsEarnedInCompanyThree
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase in Investment in Company Three. + References No definition available. + Details
Name: | cnk_IncreaseInInvestmentInCompanyThree
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the fair value of the entity's investment in Real D, which is in the form of equity securities. The entity has classified these equity securities as available-for-sale. + References No definition available. + Details
Name: | cnk_InvestmentInCompanyThree
Namespace Prefix: | cnk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | cnk_InvestmentInCompanyThreeTextualAbstract
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of shares owned in RealD. + References No definition available. + Details
Name: | cnk_NumberOfSharesOwnedInCompanyThree
Namespace Prefix: | cnk_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of options to purchase common shares of RealD in which the company has vested. + References No definition available. + Details
Name: | cnk_NumberOfVestedOptionsToPurchaseCommonStockOfCompanyThree
Namespace Prefix: | cnk_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLosses1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Details
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Namespace Prefix: | us-gaap_
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