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Impairment of Property and Equipment - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2014
Theatre
Dec. 31, 2013
Theatre
Dec. 31, 2012
Theatre
Property, Plant and Equipment [Line Items]            
Impairment charges $ 1,655us-gaap_ImpairmentOfLongLivedAssetsHeldForUse $ 1,198us-gaap_ImpairmentOfLongLivedAssetsHeldForUse $ 2,974us-gaap_ImpairmentOfLongLivedAssetsHeldForUse $ 3,212us-gaap_ImpairmentOfLongLivedAssetsHeldForUse $ 3,726us-gaap_ImpairmentOfLongLivedAssetsHeldForUse $ 4,227us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Estimated aggregate fair value of long-lived assets impaired       3,939ckec_LongLivedAssetsImpairedFairValue 4,823ckec_LongLivedAssetsImpairedFairValue  
Impairment charges on theaters using valuation inputs       784ckec_ImpairmentOfLongLivedAssetsHeldForUseTheatresImpaired 2,758ckec_ImpairmentOfLongLivedAssetsHeldForUseTheatresImpaired 2,376ckec_ImpairmentOfLongLivedAssetsHeldForUseTheatresImpaired
Impairment charges on theaters impaired on prior years using valuation inputs       2,428ckec_ImpairmentOfLongLivedAssetsHeldForUseCertainTheatresImpairedInPriorYears 361ckec_ImpairmentOfLongLivedAssetsHeldForUseCertainTheatresImpairedInPriorYears 191ckec_ImpairmentOfLongLivedAssetsHeldForUseCertainTheatresImpairedInPriorYears
Number of operating theaters where competition entered the market       1ckec_NumberOfOperatingTheatres 1ckec_NumberOfOperatingTheatres  
Impairment charges on previously impaired theaters using valuation inputs         $ 750ckec_ImpairmentOfLongLivedAssetsHeldForUsePreviouslyClosedTheatres $ 1,782ckec_ImpairmentOfLongLivedAssetsHeldForUsePreviouslyClosedTheatres
Number of theatres           2ckec_NumberOfTheatresPlannedToBeReplaced
Minimum [Member]            
Property, Plant and Equipment [Line Items]            
Projects future attendance fluctuations, percent       (10.00%)ckec_ProjectsFutureAttendanceFluctuationsPercent
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		    
Risk-adjusted of return, discount rate       10.00%ckec_RiskAdjustedOfReturnDiscountRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		    
Maximum [Member]            
Property, Plant and Equipment [Line Items]            
Projects future attendance fluctuations, percent       10.00%ckec_ProjectsFutureAttendanceFluctuationsPercent
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		    
Risk-adjusted of return, discount rate       15.00%ckec_RiskAdjustedOfReturnDiscountRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember