Annual report pursuant to Section 13 and 15(d)

Summary of Potential Number of Shares Vesting under Restricted Stock Unit Awards (Detail)

v2.4.1.9
Summary of Potential Number of Shares Vesting under Restricted Stock Unit Awards (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Schedule of Restricted Stock Unit [Line Items]      
Number of units at IRR level of at least 8.5% 65,832cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastEightPointFivePercent 38,366cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastEightPointFivePercent 50,981cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastEightPointFivePercent
Number of units at IRR level of at least 10.5% 131,683cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastTenPointFivePercent 76,741cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastTenPointFivePercent 101,974cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastTenPointFivePercent
Number of units at IRR level of at least 12.5% 197,515cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastTwelvePointFivePercent 115,107cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastTwelvePointFivePercent 152,955cnk_NumberOfSharesVestingAtIrrTargetLevelOfAtLeastTwelvePointFivePercent
Fair value of units at IRR level of at least 8.5% $ 1,879cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastEightPointFivePercent $ 1,129cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastEightPointFivePercent $ 1,103cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastEightPointFivePercent
Fair value of units at IRR level of at least 10.5% 3,758cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastTenPointFivePercent 2,259cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastTenPointFivePercent 2,206cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastTenPointFivePercent
Fair value of units at IRR level of at least 12.5% $ 5,637cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastTwelvePointFivePercent $ 3,389cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastTwelvePointFivePercent $ 3,308cnk_ValueOfSharesVestingAtIrrTargetLevelOfAtLeastTwelvePointFivePercent