Income Taxes (Details) (USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Income Taxes (Textuals)
Reduction of companys liabilities for uncertain tax positions due to settlements and closures of various tax years	$ 3,637	$ 14,115
Reduction in income tax expense		$ 8,882

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cnk_ReductionOfCompanysLiabilitiesForUncertainTaxPositionsDueToSettlementsAndClosuresOfVariousTaxYears

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cnk

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xbrli:monetaryItemType

Balance Type:

credit

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duration