Intercompany Loan, Quarterly Payment

No definition available.

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

- 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 and reclassification, of gain (loss) from 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 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(19))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

Reference 2: 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 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A

+ Details

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

- Definition

Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 182
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480401/815-10-55-182

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4C
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C

Reference 4: 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 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480627/815-20-45-3

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_IncomeStatementLocationAxis=us-gaap_OtherNonoperatingIncomeExpenseMember
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_IncomeStatementLocationAxis=us-gaap_InterestIncomeMember
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_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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_DerivativeInstrumentRiskAxis=iart_CNHExchangeForwardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DERIVATIVE INSTRUMENTS - Narrative (Details) $ in Thousands, ¥ in Millions, ¥ in Millions, SFr in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2025 CHF (SFr)	Jun. 30, 2024 USD ($)	Jul. 30, 2025 CHF (SFr)	Jul. 25, 2025 USD ($)	Jul. 25, 2025 CHF (SFr)	Jun. 30, 2025 CHF (SFr)	Jun. 30, 2025 CNY (¥)	Jun. 30, 2025 JPY (¥)	Feb. 28, 2025 USD ($)	Feb. 28, 2025 CHF (SFr)	Dec. 31, 2024 USD ($)	Dec. 31, 2021 USD ($)	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	$ 9,600		$ 9,600
Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) recorded in AOCI, change in fair value	(97,134)	$ 1,449	(117,628)		$ 69,995
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets (liabilities), at fair value, net	700		700											$ 1,700
Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	900,000		900,000											$ 1,125,000
Interest rate swaps
Derivative [Line Items]
Gain (loss) estimated to be reclassified to earnings during next twelve months	17,300		17,300
Interest rate swaps \| Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) recognized in accumulated other comprehensive income	(3,400)	5,100	(10,900)		19,800
Gain (loss) reclassified into other income	1,400	5,000	2,900		10,300
Gain (loss) recorded in AOCI, change in fair value	(3,420)	5,088	(10,883)		19,811
Cross-currency swap
Derivative [Line Items]
Gain (loss) reclassified into other income	2,300	1,300	3,500		2,600
Gain (loss) estimated to be reclassified to earnings during next twelve months	5,200		5,200
Current notional amount												$ 368,400	SFr 328.1				$ 471,600	SFr 420.1
Intercompany loan quarterly payments \| SFr				SFr 5.8
Cross-currency swap \| Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) reclassified into other income	(40,600)	1,500	(49,800)		28,600
Gain (loss) recorded in AOCI, change in fair value	(39,505)	598	(49,537)		30,130
Cross-currency swap \| Cash Flow Hedges \| Designated as Hedging Instrument \| Other income, net
Derivative [Line Items]
Gain (loss) recorded in AOCI, change in fair value	(39,500)	600	(49,500)		30,100
Cross-currency swap \| Net Investment Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Gain (loss) reclassified into other income	3,100	2,500	5,700		4,700
Gain (loss) recorded in AOCI, change in fair value	(55,876)	(4,233)	(59,311)		20,687
Cross-currency swap \| Net Investment Hedges \| Designated as Hedging Instrument \| Interest income
Derivative [Line Items]
Gain (loss) recorded in AOCI, change in fair value	(55,900)	(4,200)	(59,300)		20,700
Foreign currency swaps \| Not Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	3,600		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 67.8
Foreign currency swaps \| Net Investment Hedges \| Designated as Hedging Instrument \| Subsequent Event
Derivative [Line Items]
Current notional amount							$ 75,000	SFr 59.7
Foreign currency forward contract \| Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount \| SFr									SFr 14.4
Gain (loss) recorded in AOCI, change in fair value	1,667	(4)	2,103		(633)
Foreign currency forward contract \| Cash Flow Hedges \| Designated as Hedging Instrument \| Subsequent Event
Derivative [Line Items]
Current notional amount \| SFr						SFr 6.0
Foreign currency forward contract \| Cash Flow Hedges \| Designated as Hedging Instrument \| Other income, net
Derivative [Line Items]
Gain (loss) recorded in AOCI, change in fair value	(500)	(100)	(400)		(200)
Foreign currency forward contract \| Cash Flow Hedges \| Designated as Hedging Instrument \| Cost of Sales
Derivative [Line Items]
Gain (loss) recorded in AOCI, change in fair value	1,700	$ 0	2,100		$ (600)
CNH Exchange Forward \| Not Designated as Hedging Instrument
Derivative [Line Items]
Current notional amount	$ 16,600		$ 16,600							¥ 120.0