<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.25.3</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>548</ContextCount>
  <ElementCount>369</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>133</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>13</UnitCount>
  <MyReports>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>9952151 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOMEUNAUDITED</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>9952153 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSHAREHOLDERSEQUITYUNAUDITED</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>9952156 - Disclosure - BASIS OF PRESENTATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/BASISOFPRESENTATION</Role>
      <ShortName>BASIS OF PRESENTATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>9952157 - Disclosure - ACQUISITIONS AND DIVESTITURES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACQUISITIONSANDDIVESTITURES</Role>
      <ShortName>ACQUISITIONS AND DIVESTITURES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>9952158 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERS</Role>
      <ShortName>REVENUES FROM CONTRACTS WITH CUSTOMERS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>9952159 - Disclosure - INVENTORIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/INVENTORIES</Role>
      <ShortName>INVENTORIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>9952160 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/GOODWILLANDOTHERINTANGIBLEASSETS</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>9952161 - Disclosure - DEBT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DEBT</Role>
      <ShortName>DEBT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>9952162 - Disclosure - DERIVATIVE INSTRUMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTS</Role>
      <ShortName>DERIVATIVE INSTRUMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>9952163 - Disclosure - STOCK-BASED COMPENSATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/STOCKBASEDCOMPENSATION</Role>
      <ShortName>STOCK-BASED COMPENSATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>9952164 - Disclosure - RETIREMENT PLANS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/RETIREMENTPLANS</Role>
      <ShortName>RETIREMENT PLANS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>9952165 - Disclosure - LEASES AND RELATED PARTY LEASES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/LEASESANDRELATEDPARTYLEASES</Role>
      <ShortName>LEASES AND RELATED PARTY LEASES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>9952166 - Disclosure - TREASURY STOCK</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/TREASURYSTOCK</Role>
      <ShortName>TREASURY STOCK</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>9952167 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/INCOMETAXES</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>9952168 - Disclosure - NET LOSS PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/NETLOSSPERSHARE</Role>
      <ShortName>NET LOSS PER SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>9952169 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSS</Role>
      <ShortName>ACCUMULATED OTHER COMPREHENSIVE LOSS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>9952170 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/SEGMENTANDGEOGRAPHICINFORMATION</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>9952171 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/COMMITMENTSANDCONTINGENCIES</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>9952172 - Disclosure - FAIR VALUE MEASUREMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/FAIRVALUEMEASUREMENTS</Role>
      <ShortName>FAIR VALUE MEASUREMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>9955511 - Disclosure - BASIS OF PRESENTATION (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/BASISOFPRESENTATIONPolicies</Role>
      <ShortName>BASIS OF PRESENTATION (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>9955512 - Disclosure - BASIS OF PRESENTATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/BASISOFPRESENTATIONTables</Role>
      <ShortName>BASIS OF PRESENTATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/BASISOFPRESENTATION</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>9955513 - Disclosure - ACQUISITIONS AND DIVESTITURES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACQUISITIONSANDDIVESTITURESTables</Role>
      <ShortName>ACQUISITIONS AND DIVESTITURES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/ACQUISITIONSANDDIVESTITURES</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>9955514 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERSTables</Role>
      <ShortName>REVENUES FROM CONTRACTS WITH CUSTOMERS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERS</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>9955515 - Disclosure - INVENTORIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/INVENTORIESTables</Role>
      <ShortName>INVENTORIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/INVENTORIES</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>9955516 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/GOODWILLANDOTHERINTANGIBLEASSETS</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>9955517 - Disclosure - DEBT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DEBTTables</Role>
      <ShortName>DEBT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/DEBT</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>9955518 - Disclosure - DERIVATIVE INSTRUMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTSTables</Role>
      <ShortName>DERIVATIVE INSTRUMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/DERIVATIVEINSTRUMENTS</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>9955519 - Disclosure - LEASES AND RELATED PARTY LEASES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/LEASESANDRELATEDPARTYLEASESTables</Role>
      <ShortName>LEASES AND RELATED PARTY LEASES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/LEASESANDRELATEDPARTYLEASES</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>9955520 - Disclosure - INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/INCOMETAXESTables</Role>
      <ShortName>INCOME TAXES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/INCOMETAXES</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>9955521 - Disclosure - NET LOSS PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/NETLOSSPERSHARETables</Role>
      <ShortName>NET LOSS PER SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/NETLOSSPERSHARE</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>9955522 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSSTables</Role>
      <ShortName>ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSS</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>9955523 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/SEGMENTANDGEOGRAPHICINFORMATIONTables</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/SEGMENTANDGEOGRAPHICINFORMATION</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>9955524 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/COMMITMENTSANDCONTINGENCIESTables</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/COMMITMENTSANDCONTINGENCIES</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>9955525 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/FAIRVALUEMEASUREMENTSTables</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://integralife.com/role/FAIRVALUEMEASUREMENTS</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>9955526 - Disclosure - BASIS OF PRESENTATION - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/BASISOFPRESENTATIONNarrativeDetails</Role>
      <ShortName>BASIS OF PRESENTATION - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>9955527 - Disclosure - BASIS OF PRESENTATION - Schedule of Restructuring Charges (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/BASISOFPRESENTATIONScheduleofRestructuringChargesDetails</Role>
      <ShortName>BASIS OF PRESENTATION - Schedule of Restructuring Charges (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>9955528 - Disclosure - ACQUISITIONS AND DIVESTITURES - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACQUISITIONSANDDIVESTITURESNarrativeDetails</Role>
      <ShortName>ACQUISITIONS AND DIVESTITURES - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>9955529 - Disclosure - ACQUISITIONS AND DIVESTITURES - Business Combination, Schedule of Purchase Price Allocation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACQUISITIONSANDDIVESTITURESBusinessCombinationScheduleofPurchasePriceAllocationDetails</Role>
      <ShortName>ACQUISITIONS AND DIVESTITURES - Business Combination, Schedule of Purchase Price Allocation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>9955530 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERSNarrativeDetails</Role>
      <ShortName>REVENUES FROM CONTRACTS WITH CUSTOMERS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>9955531 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Changes in Contract Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERSScheduleofChangesinContractAssetsandLiabilitiesDetails</Role>
      <ShortName>REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Changes in Contract Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>9955532 - Disclosure - REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Revenues Disaggregated by Major Source (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/REVENUESFROMCONTRACTSWITHCUSTOMERSScheduleofRevenuesDisaggregatedbyMajorSourceDetails</Role>
      <ShortName>REVENUES FROM CONTRACTS WITH CUSTOMERS - Schedule of Revenues Disaggregated by Major Source (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>9955533 - Disclosure - INVENTORIES - Schedule of Net Inventories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/INVENTORIESScheduleofNetInventoriesDetails</Role>
      <ShortName>INVENTORIES - Schedule of Net Inventories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>9955534 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Changes in Carrying Amount of Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/GOODWILLANDOTHERINTANGIBLEASSETSScheduleofChangesinCarryingAmountofGoodwillDetails</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Changes in Carrying Amount of Goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>9955535 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>9955536 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Company's Identifiable Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofCompanysIdentifiableIntangibleAssetsDetails</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Company's Identifiable Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>9955537 - Disclosure - DEBT - Maximum Total Leverage Ratio Table (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DEBTMaximumTotalLeverageRatioTableDetails</Role>
      <ShortName>DEBT - Maximum Total Leverage Ratio Table (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>9955538 - Disclosure - DEBT - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DEBTNarrativeDetails</Role>
      <ShortName>DEBT - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>9955539 - Disclosure - DEBT - Contractual Maturity Table (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DEBTContractualMaturityTableDetails</Role>
      <ShortName>DEBT - Contractual Maturity Table (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>9955540 - Disclosure - DEBT - Schedule of Carrying Amounts and Estimated Fair Values of Debt Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DEBTScheduleofCarryingAmountsandEstimatedFairValuesofDebtInstrumentsDetails</Role>
      <ShortName>DEBT - Schedule of Carrying Amounts and Estimated Fair Values of Debt Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>9955541 - Disclosure - DERIVATIVE INSTRUMENTS - Schedule of Derivative Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTSScheduleofDerivativeInstrumentsDetails</Role>
      <ShortName>DERIVATIVE INSTRUMENTS - Schedule of Derivative Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>9955542 - Disclosure - DERIVATIVE INSTRUMENTS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTSNarrativeDetails</Role>
      <ShortName>DERIVATIVE INSTRUMENTS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>9955543 - Disclosure - DERIVATIVE INSTRUMENTS - Schedule of Cross Currency Swap Derivatives (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTSScheduleofCrossCurrencySwapDerivativesDetails</Role>
      <ShortName>DERIVATIVE INSTRUMENTS - Schedule of Cross Currency Swap Derivatives (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>9955544 - Disclosure - DERIVATIVE INSTRUMENTS - Schedule of Net Investment Hedges Derivatives (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTSScheduleofNetInvestmentHedgesDerivativesDetails</Role>
      <ShortName>DERIVATIVE INSTRUMENTS - Schedule of Net Investment Hedges Derivatives (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>9955545 - Disclosure - DERIVATIVE INSTRUMENTS - Fair Value of Derivative Instruments By Balance Sheet Location (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTSFairValueofDerivativeInstrumentsByBalanceSheetLocationDetails</Role>
      <ShortName>DERIVATIVE INSTRUMENTS - Fair Value of Derivative Instruments By Balance Sheet Location (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>9955546 - Disclosure - DERIVATIVE INSTRUMENTS - Effect of Derivative Instruments Designated Cash Flow Hedges on Statements of Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTSEffectofDerivativeInstrumentsDesignatedCashFlowHedgesonStatementsofOperationsDetails</Role>
      <ShortName>DERIVATIVE INSTRUMENTS - Effect of Derivative Instruments Designated Cash Flow Hedges on Statements of Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>9955547 - Disclosure - DERIVATIVE INSTRUMENTS - Schedule of Derivatives Not Designated as Hedging Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/DERIVATIVEINSTRUMENTSScheduleofDerivativesNotDesignatedasHedgingInstrumentsDetails</Role>
      <ShortName>DERIVATIVE INSTRUMENTS - Schedule of Derivatives Not Designated as Hedging Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>9955548 - Disclosure - STOCK-BASED COMPENSATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/STOCKBASEDCOMPENSATIONDetails</Role>
      <ShortName>STOCK-BASED COMPENSATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://integralife.com/role/STOCKBASEDCOMPENSATION</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>9955549 - Disclosure - RETIREMENT PLANS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/RETIREMENTPLANSDetails</Role>
      <ShortName>RETIREMENT PLANS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://integralife.com/role/RETIREMENTPLANS</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>9955550 - Disclosure - LEASES AND RELATED PARTY LEASES - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/LEASESANDRELATEDPARTYLEASESNarrativeDetails</Role>
      <ShortName>LEASES AND RELATED PARTY LEASES - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>9955551 - Disclosure - LEASES AND RELATED PARTY LEASES - Supplemental Balance Sheet Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/LEASESANDRELATEDPARTYLEASESSupplementalBalanceSheetInformationDetails</Role>
      <ShortName>LEASES AND RELATED PARTY LEASES - Supplemental Balance Sheet Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>9955552 - Disclosure - LEASES AND RELATED PARTY LEASES - Supplemental Cash Flow Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/LEASESANDRELATEDPARTYLEASESSupplementalCashFlowInformationDetails</Role>
      <ShortName>LEASES AND RELATED PARTY LEASES - Supplemental Cash Flow Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>9955553 - Disclosure - LEASES AND RELATED PARTY LEASES - Future Minimum Lease Payment Under Operating Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/LEASESANDRELATEDPARTYLEASESFutureMinimumLeasePaymentUnderOperatingLeasesDetails</Role>
      <ShortName>LEASES AND RELATED PARTY LEASES - Future Minimum Lease Payment Under Operating Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>9955554 - Disclosure - TREASURY STOCK (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/TREASURYSTOCKDetails</Role>
      <ShortName>TREASURY STOCK (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://integralife.com/role/TREASURYSTOCK</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>9955555 - Disclosure - INCOME TAXES - Summary of Effective Tax Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/INCOMETAXESSummaryofEffectiveTaxRateDetails</Role>
      <ShortName>INCOME TAXES - Summary of Effective Tax Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>9955556 - Disclosure - INCOME TAXES - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/INCOMETAXESNarrativeDetails</Role>
      <ShortName>INCOME TAXES - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>9955557 - Disclosure - NET LOSS PER SHARE - Basic and Diluted Net Income Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/NETLOSSPERSHAREBasicandDilutedNetIncomePerShareDetails</Role>
      <ShortName>NET LOSS PER SHARE - Basic and Diluted Net Income Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>9955558 - Disclosure - NET LOSS PER SHARE - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/NETLOSSPERSHARENarrativeDetails</Role>
      <ShortName>NET LOSS PER SHARE - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>9955559 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Comprehensive Income (Loss) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSSScheduleofComprehensiveIncomeLossDetails</Role>
      <ShortName>ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Comprehensive Income (Loss) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>9955560 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSSScheduleofChangesinAccumulatedOtherComprehensiveIncomeLossbyComponentDetails</Role>
      <ShortName>ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>9955561 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSSNarrativeDetails</Role>
      <ShortName>ACCUMULATED OTHER COMPREHENSIVE LOSS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>9955562 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/SEGMENTANDGEOGRAPHICINFORMATIONNarrativeDetails</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>9955563 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Segment Reporting Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/SEGMENTANDGEOGRAPHICINFORMATIONSegmentReportingInformationDetails</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION - Segment Reporting Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>9955564 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION - Revenue by Major Geographic Area (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/SEGMENTANDGEOGRAPHICINFORMATIONRevenuebyMajorGeographicAreaDetails</Role>
      <ShortName>SEGMENT AND GEOGRAPHIC INFORMATION - Revenue by Major Geographic Area (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>9955565 - Disclosure - COMMITMENTS AND CONTINGENCIES (Fair Value Contingent Consideration) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/COMMITMENTSANDCONTINGENCIESFairValueContingentConsiderationDetails</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Fair Value Contingent Consideration) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://integralife.com/role/COMMITMENTSANDCONTINGENCIESTables</ParentRole>
      <Position>79</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>9955566 - Disclosure - COMMITMENTS AND CONTINGENCIES - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="iart-20250930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>9955567 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule Assets and Liabilities on a Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://integralife.com/role/FAIRVALUEMEASUREMENTSScheduleAssetsandLiabilitiesonaRecurringBasisDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS - Schedule Assets and Liabilities on a Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="iart-20250930.htm">iart-20250930.htm</File>
    <File>iart-20250930.xsd</File>
    <File>iart-20250930_cal.xml</File>
    <File>iart-20250930_def.xml</File>
    <File>iart-20250930_lab.xml</File>
    <File>iart-20250930_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="1">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="1348">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="29">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
