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Subsequent Event New Swap Agreement (Details) (USD $) In Thousands, unless otherwise specified | 1 Months Ended |
--- | --- | ---
Jul. 31, 2011 | Jun. 03, 2011
Subsequent Event New Swap Agreement (Textuals) [Abstract] |  |
Effective date of interest rate of swap | 40848 |
Interest rate agreement, Amount |  | $ 100,000
Fixed rate to be paid by Company |  | 1.715%
Variable interest rate to be received by Company | Based on the 1-month LIBOR |
Premium or Discount incurred in interest rate swap | $ 0 |

X
- Definition Effective date of interest rate of swap. + Details
Name: | cnk_EffectiveDateOfInterestRateOfSwap
Namespace Prefix: | cnk
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Premium or Discount incurred in interest rate swap. + Details
Name: | cnk_PremiumOrDiscountIncurredInInterestRateSwap
Namespace Prefix: | cnk
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Subsequent event new swap agreement. + Details
Name: | cnk_SubsequentEventNewSwapAgreementTextualsAbstract
Namespace Prefix: | cnk
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The reference rate for the variable rate of the interest rate derivative, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + Details
Name: | us-gaap_DerivativeDescriptionOfVariableRateBasis
Namespace Prefix: | us-gaap
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fixed interest rate that will be received or paid upon exercise of the interest rate swaption contract. + Details
Name: | us-gaap_DerivativeSwaptionInterestRate
Namespace Prefix: | us-gaap
Data Type: | us-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments. + Details
Name: | us-gaap_NotionalAmountOfInterestRateDerivatives
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant