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Treasury Stock and Share Based Awards - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Stockholders Equity Note [Line Items]
Actual cumulative forfeitures (in units)	19,934cnk_CumulativeRestrictedStockUnitAwardForfeitures
Restricted Stock
Stockholders Equity Note [Line Items]
Shares of Restricted Stock Granted	169,862us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Market value of common stock on the date of grant	43.28us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Minimum forfeiture rate for restricted stock awards	0.00%cnk_MinimumForfeitureRateForRestrictedStockAwardsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Maximum forfeiture rate for restricted stock awards	5.00%cnk_MaximumForfeitureRateForRestrictedStockAwardsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Unrecognized compensation expense	16,872us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember
Remaining Compensation Expense recognition period (in years)	2 years
Restricted Stock | Minimum | Employees
Stockholders Equity Note [Line Items]
Award vesting period for restricted stock granted	1 year
Restricted Stock | Maximum | Employees
Stockholders Equity Note [Line Items]
Award vesting period for restricted stock granted	4 years
Restricted Stock Units (RSUs)
Stockholders Equity Note [Line Items]
Market value of common stock on the date of grant	43.28us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Unrecognized compensation expense	7,705us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Remaining Compensation Expense recognition period (in years)	2 years
Number of hypothetical shares of common stock	137,982cnk_NumberOfHypotheticalSharesOfCommonStockIssuedAtMaxIrrLevel / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Percentage of IRR, which is the threshold	7.50%cnk_ThresholdPercentageOfIrr / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Percentage of IRR, which is the target	9.50%cnk_TargetedPercentageOfIrr / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Percentage of IRR, which is the maximum	11.50%cnk_MaximumPercentageOfIrr / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Number of hypothetical shares of common stock at assumed IRR level	539,141cnk_NumberOfHypotheticalSharesOfCommonStockOutstandingAtAssumedInternalRateOfReturnLevel / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Restricted Stock Units (RSUs) | 2012 Grants
Stockholders Equity Note [Line Items]
Assumed IRR for grant	11.10%cnk_AssumedIrrLevelForAllRestrictedStockUnitAwards / cnk_AwardByGrantDateAxis = cnk_TwentyTwelveEquityGrantsMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Restricted Stock Units (RSUs) | Minimum
Stockholders Equity Note [Line Items]
Expected forfeiture rate	0.00%cnk_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRate / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Restricted Stock Units (RSUs) | Maximum
Stockholders Equity Note [Line Items]
Expected forfeiture rate	5.00%cnk_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRate / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember / us-gaap_RangeAxis = us-gaap_MaximumMember

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Assumed Irr level for all restricted stock unit awards.

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Cumulative restricted stock unit forfeitures for grants yet to vest. Excludes forfeitures for RSU grants for which the service period has ended.

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Maximum forfeiture rate used for restricted stock awards granted during the period.

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Number of hypothetical shares that could vest at the IRR level indicated.

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Number Of Hypothetical Shares of Common Stock outstanding at Internal Rate of Return Level indicated.

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Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate

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Percentage of IRR, which is the target.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-SubTopic 10

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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