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DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS, Settlements of Collateralized Indebtedness (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 1 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Apr. 30, 2015
Settlements of Collateralized Indebtedness [Abstract]      
Number of shares (in shares) 2,668,875cvc_NumberOfSharesMonetized    
Collateralized indebtedness settled $ (103,227)cvc_CollateralizedIndebtednessSettled    
Derivative contracts settled (15,889)cvc_DerivativeContractsSettled    
Repayment of collateralized indebtedness and related derivative contracts (119,116)us-gaap_RepaymentsOfSecuredDebt 0us-gaap_RepaymentsOfSecuredDebt  
Proceeds from new monetization contracts 150,084us-gaap_ProceedsFromIssuanceOfSecuredDebt 0us-gaap_ProceedsFromIssuanceOfSecuredDebt  
Net cash receipt 30,968cvc_NetCashReceiptPaymentOnCollateralizedIndebtednessSettlements    
Subsequent Event      
Settlements of Collateralized Indebtedness [Abstract]      
Number of shares (in shares)     2,732,184cvc_NumberOfSharesMonetized
/ us-gaap_SubsequentEventTypeAxis
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Derivatives Not Designated as Hedging Instruments | Prepaid forward contracts      
Settlements of Collateralized Indebtedness [Abstract]      
Reclassification of investment securities pledged as collateral from current assets to long-term assets 154,286cvc_ReclassificationofInvestmentSecuritiesPledgedasCollateralfromCurrentAssetstoLongTermAssets
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/ us-gaap_HedgingDesignationAxis
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Reclassification of collateralized indebtedness from current liabilities to long-term liabilities $ 112,869cvc_ReclassificationofCollateralizedIndebtednessfromCurrentLiabilitiestoLongTermLiabilities
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