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SEGMENT AND GEOGRAPHIC INFORMATION - Narrative (Details) | 6 Months Ended
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Jun. 30, 2019 Segment product
Segment Reporting Information [Line Items] |
Number of reportable segments | Segment | 2
Codman Specialty Surgical |
Segment Reporting Information [Line Items] |
Number of products offered (more than) | product | 60,000

X
- Definition Number of products sold by a segment + References No definition available. + Details
Name: | iart_SegmentReportingInformationNumberOfProductsOffered
Namespace Prefix: | iart_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=iart_CodmanSpecialtySurgicalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |