Intercompany Loan, Annual Payment

No definition available.

Name:	iart_IntercompanyLoanAnnualPayment
Namespace Prefix:	iart_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Intercompany Loan, Face Amount

+ References

No definition available.

+ Details

Name:	iart_IntercompanyLoanFaceAmount
Namespace Prefix:	iart_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Intercompany Loan, Quarterly Payment

+ References

No definition available.

+ Details

Name:	iart_IntercompanyLoanQuarterlyPayment
Namespace Prefix:	iart_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number Of Intercompany Loans

+ References

No definition available.

+ Details

Name:	iart_NumberOfIntercompanyLoans
Namespace Prefix:	iart_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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/2009/role/commonPracticeRef
-Topic 815
-SubTopic 20
-Name Accounting Standards Codification
-Section 25
-Paragraph 6A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480682/815-20-25-6A

Reference 2: 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/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 181
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480401/815-10-55-181

Reference 2: 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 3: 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

- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

+ Details

Name:	us-gaap_GainLossOnDerivativeInstrumentsNetPretax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480870/815-30-50-1

+ Details

Name:	us-gaap_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-15

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
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_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_NetInvestmentHedgingMember
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_DerivativeInstrumentRiskAxis=iart_CrossCurrencyInterestRateContractTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OtherNonoperatingIncomeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

DERIVATIVE INSTRUMENTS - Narrative (Details) $ in Thousands, € in Millions, ¥ in Millions, ¥ in Millions, SFr in Millions	3 Months Ended
	Mar. 31, 2026 USD ($)	Mar. 31, 2026 CHF (SFr)	Mar. 31, 2025 USD ($)	Apr. 28, 2026 CHF (SFr)	Mar. 31, 2026 CHF (SFr)	Mar. 31, 2026 CNY (¥)	Mar. 31, 2026 EUR (€)	Mar. 31, 2026 JPY (¥)	Dec. 31, 2025 USD ($)	Nov. 30, 2025 USD ($) intercompany_loan	Nov. 30, 2025 CHF (SFr) intercompany_loan	Jul. 25, 2025 USD ($)	Jul. 25, 2025 CHF (SFr)	Feb. 28, 2025 USD ($)	Feb. 28, 2025 CHF (SFr)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 JPY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 CHF (SFr)
Derivative [Line Items]
Gain (loss) estimated to be reclassified to earnings during next twelve months	$ 11,100
Designated as Hedging Instrument
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Earnings	16,538		$ (4,148)
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets (liabilities), at fair value, net	1,300								$ 1,000
Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	900,000								$ 900,000
Interest rate swaps
Derivative [Line Items]
Gain (loss) estimated to be reclassified to earnings during next twelve months	17,400
Interest rate swaps \| Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Earnings	4,380		1,426
Cross-currency swap
Derivative [Line Items]
Gain (loss) estimated to be reclassified to earnings during next twelve months	10,000
Current notional amount										$ 170,000	SFr 137.6			$ 368,400	SFr 328.1			$ 471,600	SFr 420.1
Intercompany loan quarterly payments \| SFr		SFr 5.8
Number of intercompany loans \| intercompany_loan										2	2
Gain (loss) reclassified into other income	3,500		1,200
Cross-currency swap \| Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) reclassified into other income	5,900		(9,400)
Amount of Gain (Loss) Reclassified from AOCI into Earnings	8,668		(8,230)
Cross-currency swap \| Net Investment Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Earnings	3,080		2,633
Cross Currency Interest Rate Swap One
Derivative [Line Items]
Intercompany loan, face amount \| SFr											SFr 80.9
Intercompany loan, annual payments \| SFr		8.1
Cross Currency Interest Rate Swap Two
Derivative [Line Items]
Intercompany loan, face amount \| SFr											SFr 56.6
Intercompany loan, annual payments \| SFr		SFr 8.1
Foreign currency swaps \| Not Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	3,600							¥ 400.0								$ 7,300	¥ 800.0
Foreign currency swaps \| Net Investment Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount												$ 75,000	SFr 59.7	$ 75,000	SFr 67.8
Foreign currency forward contracts \| Cost of sales
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Earnings	500		200
Foreign currency forward contracts \| Other income, net
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Earnings	(100)		(200)
Foreign currency forward contracts \| Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount \| SFr					SFr 14.1
Amount of Gain (Loss) Reclassified from AOCI into Earnings	410		$ 23
Foreign currency forward contracts \| Cash Flow Hedges \| Designated as Hedging Instrument \| Subsequent Event
Derivative [Line Items]
Current notional amount \| SFr				SFr 3.1
CNH Exchange Forward \| Not Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	4,400					¥ 30.0
CHF Exchange Forward \| Not Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	5,100				SFr 4.0
EUR Exchange Forward \| Not Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	$ 8,200						€ 7.0