Fair value of the assets less the liabilities of a derivative or group of derivatives.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-10

+ Details

Name:	us-gaap_DerivativeFairValueOfDerivativeNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480237/815-40-50-5

+ Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

+ Details

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CrossCurrencyInterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PositionAxis=us-gaap_ShortMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=iart_CodmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=iart_CrossCurrencyInterestRateContractOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PositionAxis=us-gaap_LongMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=iart_CrossCurrencyInterestRateContractTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DERIVATIVE INSTRUMENTS - Schedule of Cross Currency Swap Derivatives (Details) SFr in Thousands	Jun. 30, 2023 USD ($)	Jun. 30, 2023 CHF (SFr)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 CHF (SFr)	Sep. 26, 2022 CHF (SFr)	Dec. 21, 2020 USD ($)	Dec. 21, 2020 CHF (SFr)
Cross-currency swap
Derivative [Line Items]
Aggregate Notional Amount						$ 471,600,000	SFr 420,100
Cross-currency swap \| Short \| Codman
Derivative [Line Items]
Aggregate Notional Amount	$ 49,100,000				SFr 48,500
Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Fair Value Asset (Liability)	56,901,000		$ 56,712,000
Cash Flow Hedges \| Designated as Hedging Instrument \| Cross-currency swap \| Codman
Derivative [Line Items]
Fair Value Asset (Liability)	(21,348,000)		(7,769,000)
Cash Flow Hedges \| Designated as Hedging Instrument \| Cross Currency Interest Rate Swap One \| Codman
Derivative [Line Items]
Fair Value Asset (Liability)	$ (16,217,000)		(4,241,000)
Cash Flow Hedges \| Designated as Hedging Instrument \| Cross Currency Interest Rate Swap One \| Long \| Codman
Derivative [Line Items]
Fixed Rate	3.00%	3.00%
Aggregate Notional Amount \| SFr		SFr 377,591		SFr 374,137
Cash Flow Hedges \| Designated as Hedging Instrument \| Cross Currency Interest Rate Swap One \| Short \| Codman
Derivative [Line Items]
Fixed Rate	3.98%	3.98%
Aggregate Notional Amount	$ 418,066,000		420,001,000
Cash Flow Hedges \| Designated as Hedging Instrument \| Cross Currency Interest Rate Swap Two \| Codman
Derivative [Line Items]
Fair Value Asset (Liability)	$ (5,131,000)		(3,528,000)
Cash Flow Hedges \| Designated as Hedging Instrument \| Cross Currency Interest Rate Swap Two \| Long \| Codman
Derivative [Line Items]
Fixed Rate	1.95%	1.95%
Aggregate Notional Amount \| SFr		SFr 48,532		SFr 48,532
Cash Flow Hedges \| Designated as Hedging Instrument \| Cross Currency Interest Rate Swap Two \| Short \| Codman
Derivative [Line Items]
Fixed Rate	5.32%	5.32%
Aggregate Notional Amount	$ 49,142,000		$ 49,142,000