Annual report pursuant to Section 13 and 15(d)

Capital Stock - Additional Information (Detail)

v2.4.1.9
Capital Stock - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Stockholders Equity Note [Line Items]      
Intrinsic value of options exercised $ 296us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue $ 168us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue $ 1,070us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Tax benefit recognized on stock option exercised 124us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions 71us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions 449us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
Restricted Stock      
Stockholders Equity Note [Line Items]      
Shares of Restricted Stock Granted 269,774us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember 		271,532us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember 		653,229us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
Market value of common stock on the date of grant $ 28.93us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember 		$ 30.09us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember 		$ 21.70us-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 12,309us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember 		   
Remaining Compensation Expense recognition period (in years) 2 years    
Restricted Stock | Director      
Stockholders Equity Note [Line Items]      
Award vesting period for restricted stock granted 1 year    
Restricted Stock | Minimum      
Stockholders Equity Note [Line Items]      
Market value of common stock on the date of grant $ 28.54us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember 		   
Restricted Stock | Minimum | Employees [Member]      
Stockholders Equity Note [Line Items]      
Award vesting period for restricted stock granted 3 years    
Restricted Stock | Maximum      
Stockholders Equity Note [Line Items]      
Market value of common stock on the date of grant $ 35.49us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember 		   
Restricted Stock | Maximum | Employees [Member]      
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 $ 28.54us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Remaining Compensation Expense recognition period (in years) 2 years    
Number of hypothetical shares of common stock 197,515cnk_NumberOfHypotheticalSharesOfCommonStockIssuedAtMaxIrrLevel
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		115,107cnk_NumberOfHypotheticalSharesOfCommonStockIssuedAtMaxIrrLevel
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		152,955cnk_NumberOfHypotheticalSharesOfCommonStockIssuedAtMaxIrrLevel
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
Percentage of IRR, which is the threshold 8.50%cnk_ThresholdPercentageOfIrr
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Percentage of IRR, which is the target 10.50%cnk_TargetedPercentageOfIrr
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Percentage of IRR, which is the maximum 12.50%cnk_MaximumPercentageOfIrr
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Percentage of IRR excpected 11.50%cnk_ExampleCalculationPercentageOfIrrExpectedRestrictedStockUnitsGrants
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Number of hypothetical shares of common stock 573,584cnk_NumberOfHypotheticalSharesOfCommonStockOutstandingAtMaximumInternalRateOfReturnLevel
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Actual cumulative forfeitures (in units) 42,207cnk_CumulativeRestrictedStockUnitAwardForfeitures
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Assumed maximum IRR for all grants 12.50%cnk_AssumedIrrLevelForAllRestrictedStockUnitAwards
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Unrecognized Compensation expense related to outstanding restricted stock $ 4,803cnk_UnrecognizedCompensationExpenseForOutstandingOptions
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember 		   
Restricted Stock Units (RSUs) | 2012 Grants      
Stockholders Equity Note [Line Items]      
Assumed maximum IRR for all grants 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