<?xml version='1.0' encoding='UTF-8'?>
<FilingSummary>
  <Version>3.2.0.727</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>184</ContextCount>
  <ElementCount>295</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>49</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>6</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>1001000 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/CondensedConsolidatedBalanceSheetsUnaudited</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1001501 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1002000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1002501 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/CondensedConsolidatedStatementsOfIncomeUnauditedParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1004000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1005000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>2101100 - Disclosure - BUSINESS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/Business</Role>
      <ShortName>BUSINESS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>2102100 - Disclosure - BASIS OF PRESENTATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/BasisOfPresentation</Role>
      <ShortName>BASIS OF PRESENTATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>2103100 - Disclosure - DIVIDENDS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/Dividends</Role>
      <ShortName>DIVIDENDS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>2104100 - Disclosure - INCOME PER SHARE ATTRIBUTABLE TO STOCKHOLDERS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/IncomePerShareAttributableToStockholders</Role>
      <ShortName>INCOME PER SHARE ATTRIBUTABLE TO STOCKHOLDERS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>2105100 - Disclosure - GROSS VERSUS NET REVENUE RECOGNITION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/GrossVersusNetRevenueRecognition</Role>
      <ShortName>GROSS VERSUS NET REVENUE RECOGNITION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>2106100 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SupplementalCashFlowInformation</Role>
      <ShortName>SUPPLEMENTAL CASH FLOW INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>2108100 - Disclosure - DEBT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/Debt</Role>
      <ShortName>DEBT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>2109100 - Disclosure - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DerivativeContractsAndCollateralizedIndebtedness</Role>
      <ShortName>DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>2110100 - Disclosure - FAIR VALUE MEASUREMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/FairValueMeasurement</Role>
      <ShortName>FAIR VALUE MEASUREMENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>2111100 - Disclosure - DISCONTINUED OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DiscontinuedOperations</Role>
      <ShortName>DISCONTINUED OPERATIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>2112100 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/IncomeTaxes</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>2113100 - Disclosure - EQUITY PLANS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/EquityPlans</Role>
      <ShortName>EQUITY PLANS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>2114100 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/CommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>2115100 - Disclosure - SEGMENT INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SegmentInformation</Role>
      <ShortName>SEGMENT INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>2116100 - Disclosure - RELATED PARTY TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/RelatedPartyTransactions</Role>
      <ShortName>RELATED PARTY TRANSACTIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>2117100 - Disclosure - SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SubsequentEvents</Role>
      <ShortName>SUBSEQUENT EVENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>2202201 - Disclosure - BASIS OF PRESENTATION (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/BasisOfPresentationPolicies</Role>
      <ShortName>BASIS OF PRESENTATION (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>2205201 - Disclosure - GROSS VERSUS NET REVENUE RECOGNITION (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/GrossVersusNetRevenueRecognitionPolicies</Role>
      <ShortName>GROSS VERSUS NET REVENUE RECOGNITION (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2303301 - Disclosure - DIVIDENDS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DividendsTables</Role>
      <ShortName>DIVIDENDS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/Dividends</ParentRole>
      <Position>26</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>2304301 - Disclosure - INCOME PER SHARE ATTRIBUTABLE TO STOCKHOLDERS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/IncomePerShareAttributableToStockholdersTables</Role>
      <ShortName>INCOME PER SHARE ATTRIBUTABLE TO STOCKHOLDERS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/IncomePerShareAttributableToStockholders</ParentRole>
      <Position>27</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>2306301 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SupplementalCashFlowInformationTables</Role>
      <ShortName>SUPPLEMENTAL CASH FLOW INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/SupplementalCashFlowInformation</ParentRole>
      <Position>28</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>2309301 - Disclosure - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DerivativeContractsAndCollateralizedIndebtednessTables</Role>
      <ShortName>DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/DerivativeContractsAndCollateralizedIndebtedness</ParentRole>
      <Position>29</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>2310301 - Disclosure - FAIR VALUE MEASUREMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/FairValueMeasurementTables</Role>
      <ShortName>FAIR VALUE MEASUREMENT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/FairValueMeasurement</ParentRole>
      <Position>30</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>2313301 - Disclosure - EQUITY PLANS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/EquityPlansTables</Role>
      <ShortName>EQUITY PLANS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/EquityPlans</ParentRole>
      <Position>31</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>2315301 - Disclosure - SEGMENT INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SegmentInformationTables</Role>
      <ShortName>SEGMENT INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/SegmentInformation</ParentRole>
      <Position>32</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>2316301 - Disclosure - RELATED PARTY TRANSACTIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/RelatedPartyTransactionsTables</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/RelatedPartyTransactions</ParentRole>
      <Position>33</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>2401401 - Disclosure - BUSINESS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/BusinessDetails</Role>
      <ShortName>BUSINESS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/Business</ParentRole>
      <Position>34</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>2402402 - Disclosure - BASIS OF PRESENTATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/BasisOfPresentationDetails</Role>
      <ShortName>BASIS OF PRESENTATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/BasisOfPresentationPolicies</ParentRole>
      <Position>35</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>2403402 - Disclosure - DIVIDENDS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DividendsDetails</Role>
      <ShortName>DIVIDENDS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/DividendsTables</ParentRole>
      <Position>36</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>2404402 - Disclosure - INCOME PER SHARE ATTRIBUTABLE TO STOCKHOLDERS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/IncomePerShareAttributableToStockholdersDetails</Role>
      <ShortName>INCOME PER SHARE ATTRIBUTABLE TO STOCKHOLDERS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/IncomePerShareAttributableToStockholdersTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>2405402 - Disclosure - GROSS VERSUS NET REVENUE RECOGNITION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/GrossVersusNetRevenueRecognitionDetails</Role>
      <ShortName>GROSS VERSUS NET REVENUE RECOGNITION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/GrossVersusNetRevenueRecognitionPolicies</ParentRole>
      <Position>38</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>2406402 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SupplementalCashFlowInformationDetails</Role>
      <ShortName>SUPPLEMENTAL CASH FLOW INFORMATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/SupplementalCashFlowInformationTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>2408401 - Disclosure - DEBT, Repayment of Credit Facility Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DebtRepaymentOfCreditFacilityDebtDetails</Role>
      <ShortName>DEBT, Repayment of Credit Facility Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>2409402 - Disclosure - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS, Location of Assets and Liabilities with the Consolidated Balance Sheets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DerivativeContractsAndCollateralizedIndebtednessLocationOfAssetsAndLiabilitiesWithConsolidatedBalanceSheetsDetails</Role>
      <ShortName>DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS, Location of Assets and Liabilities with the Consolidated Balance Sheets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>2409403 - Disclosure - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS, Impact and Location of Derivative Instruments within Consolidated Statements of Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DerivativeContractsAndCollateralizedIndebtednessImpactAndLocationOfDerivativeInstrumentsWithinConsolidatedStatementsOfIncomeDetails</Role>
      <ShortName>DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS, Impact and Location of Derivative Instruments within Consolidated Statements of Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>2409404 - Disclosure - DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS, Settlements of Collateralized Indebtedness (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DerivativeContractsAndCollateralizedIndebtednessSettlementsOfCollateralizedIndebtednessDetails</Role>
      <ShortName>DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS, Settlements of Collateralized Indebtedness (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>2410402 - Disclosure - FAIR VALUE MEASUREMENT, Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/FairValueMeasurementAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENT, Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>2410403 - Disclosure - FAIR VALUE MEASUREMENT, Fair Value of Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/FairValueMeasurementFairValueOfFinancialInstrumentsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENT, Fair Value of Financial Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>2411401 - Disclosure - DISCONTINUED OPERATIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/DiscontinuedOperationsDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/DiscontinuedOperations</ParentRole>
      <Position>46</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>2412401 - Disclosure - INCOME TAXES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/IncomeTaxesDetails</Role>
      <ShortName>INCOME TAXES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/IncomeTaxes</ParentRole>
      <Position>47</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>2413402 - Disclosure - EQUITY PLANS, Valuation Assumptions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/EquityPlansValuationAssumptionsDetails</Role>
      <ShortName>EQUITY PLANS, Valuation Assumptions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>2413403 - Disclosure - EQUITY PLANS, Stock Option Award Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/EquityPlansStockOptionAwardActivityDetails</Role>
      <ShortName>EQUITY PLANS, Stock Option Award Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>2413404 - Disclosure - EQUITY PLANS, Restricted Stock Award Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/EquityPlansRestrictedStockAwardActivityDetails</Role>
      <ShortName>EQUITY PLANS, Restricted Stock Award Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>2413405 - Disclosure - EQUITY PLANS EQUITY PLANS, Performance Based Restricted Stock Units (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/EquityPlansEquityPlansPerformanceBasedRestrictedStockUnitsDetails</Role>
      <ShortName>EQUITY PLANS EQUITY PLANS, Performance Based Restricted Stock Units (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>2414401 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/CommitmentsAndContingenciesDetails</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/CommitmentsAndContingencies</ParentRole>
      <Position>52</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>2415402 - Disclosure - SEGMENT INFORMATION, Reportable Segments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SegmentInformationReportableSegmentsDetails</Role>
      <ShortName>SEGMENT INFORMATION, Reportable Segments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>2415403 - Disclosure - SEGMENT INFORMATION, Sources of Revenue for Cable Segment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SegmentInformationSourcesOfRevenueForCableSegmentDetails</Role>
      <ShortName>SEGMENT INFORMATION, Sources of Revenue for Cable Segment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>2415404 - Disclosure - SEGMENT INFORMATION, Reconciliation of Reportable Segments to Consolidated Balances (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SegmentInformationReconciliationOfReportableSegmentsToConsolidatedBalancesDetails</Role>
      <ShortName>SEGMENT INFORMATION, Reconciliation of Reportable Segments to Consolidated Balances (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>2415405 - Disclosure - SEGMENT INFORMATION, Capital Expenditures by Reportable Segment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SegmentInformationCapitalExpendituresByReportableSegmentDetails</Role>
      <ShortName>SEGMENT INFORMATION, Capital Expenditures by Reportable Segment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>2416402 - Disclosure - RELATED PARTY TRANSACTIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/RelatedPartyTransactionsTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>2417401 - Disclosure - SUBSEQUENT EVENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.cablevision.com/role/SubsequentEventsDetails</Role>
      <ShortName>SUBSEQUENT EVENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.cablevision.com/role/SubsequentEvents</ParentRole>
      <Position>58</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Warn">In ''EQUITY PLANS, Stock Option Award Activity (Details)'', element us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 with value 7 years 2 months has label periodStartLabel, but the context is a duration, not an instant. It will be treated as if it had no label.</Log>
    <Log type="Warn">In ''EQUITY PLANS, Stock Option Award Activity (Details)'', element us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 with value 7 years 2 months has label periodEndLabel, but the context is a duration, not an instant. It will be treated as if it had no label.</Log>
    <Log type="Warn">In ''EQUITY PLANS, Stock Option Award Activity (Details)'', element us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 with value 7 years 2 months 35 days has label periodStartLabel, but the context is a duration, not an instant. It will be treated as if it had no label.</Log>
    <Log type="Warn">In ''EQUITY PLANS, Stock Option Award Activity (Details)'', element us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 with value 7 years 2 months 35 days has label periodEndLabel, but the context is a duration, not an instant. It will be treated as if it had no label.</Log>
    <Log type="Info">In ''CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)'', column(s) 3, 4 are contained in other reports, so were removed by flow through suppression.</Log>
    <Log type="Info">In ''CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)'', column(s) 1, 2, 3 are contained in other reports, so were removed by flow through suppression.</Log>
  </Logs>
  <InputFiles>
    <File>cvc-20150630.xml</File>
    <File>cvc-20150630_cal.xml</File>
    <File>cvc-20150630_def.xml</File>
    <File>cvc-20150630_lab.xml</File>
    <File>cvc-20150630_pre.xml</File>
    <File>cvc-20150630.xsd</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies/>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>

