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DEBT (Narrative) (Details) (USD $) | 12 Months Ended | 0 Months Ended | 1 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Jun. 08, 2011 | Jul. 02, 2014 | Jun. 30, 2012 | May 11, 2012 | Jun. 21, 2013 | Jun. 15, 2011 | Jun. 11, 2007
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Amortization of debt issuance costs | $ 2,571,000 us-gaap_AmortizationOfFinancingCosts | $ 2,298,000 us-gaap_AmortizationOfFinancingCosts | $ 2,725,000 us-gaap_AmortizationOfFinancingCosts |  |  |  |  |  |  |
Carrying amount of liability | 213,121,000 us-gaap_ConvertibleDebtNoncurrent | 205,182,000 us-gaap_ConvertibleDebtNoncurrent |  |  |  |  |  |  |  |
Senior Credit Facility |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit facility outstanding | 266,900,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember | 186,900,000 us-gaap_LineOfCredit / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember |  |  |  |  |  |  |  |
Weighted average interest rate on debt | 1.70%us-gaap_DebtWeightedAverageInterestRate / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember | 2.00%us-gaap_DebtWeightedAverageInterestRate / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember |  |  |  |  |  |  |  |
Available borrowings under senior secured revolving credit facility | 483,100,000 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember |  |  |  |  |  |  |  |  |
Fair value of outstanding borrowings | 248,200,000 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember |  |  |  |  |  |  |  |  |
Senior Credit Facility | August 2010 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior credit facility, maximum borrowing capacity |  |  |  | 450,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / iart_SeniorCreditFacilityAxis = iart_AugustTwoThousandTenAmendmentMember |  |  |  |  |  |
Line of credit facility, expiration date |  |  |  | Aug. 10, 2015 |  |  |  |  |  |
Senior Credit Facility | June 2011 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior credit facility, maximum borrowing capacity |  |  |  | 600,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / iart_SeniorCreditFacilityAxis = iart_JuneTwoThousandElevenAmendmentMember |  |  |  |  |  |
Reallocated term loan |  |  |  | 150,000,000 iart_ReallocatedTermLoan / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / iart_SeniorCreditFacilityAxis = iart_JuneTwoThousandElevenAmendmentMember |  |  |  |  |  |
Senior credit facility, additional commitments |  |  |  | 200,000,000 iart_AdditionalCommitments / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / iart_SeniorCreditFacilityAxis = iart_JuneTwoThousandElevenAmendmentMember |  |  |  |  |  |
Line of credit facility, expiration date |  |  |  | Jun. 08, 2016 |  |  |  |  |  |
Senior Credit Facility | May 2012 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Capitalized incremental financing costs |  |  |  |  |  |  | 400,000 us-gaap_DeferredFinanceCostsGross / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / iart_SeniorCreditFacilityAxis = iart_ThirdAmendmentMember |  |  |
Senior Credit Facility | May 2012 Amendment | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Maximum consolidated total leverage ratio (net debt to consolidated EBITDA) |  |  |  |  |  |  | 1 iart_LeverageRatio / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MinimumMember / iart_SeniorCreditFacilityAxis = iart_ThirdAmendmentMember |  |  |
Senior Credit Facility | May 2012 Amendment | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Maximum consolidated total leverage ratio (net debt to consolidated EBITDA) |  |  |  |  |  |  | 3.75 iart_LeverageRatio / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember / iart_SeniorCreditFacilityAxis = iart_ThirdAmendmentMember |  |  |
Senior Credit Facility | June 2013 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Capitalized incremental financing costs |  |  |  |  |  |  |  | 1,100,000 us-gaap_DeferredFinanceCostsGross / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / iart_SeniorCreditFacilityAxis = iart_JuneTwoThousandThirteenAmendmentMember |  |
Senior Credit Facility | June 2013 Amendment | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Maximum consolidated total leverage ratio (net debt to consolidated EBITDA) |  |  |  |  |  |  |  | 3.75 iart_LeverageRatio / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember / iart_SeniorCreditFacilityAxis = iart_JuneTwoThousandThirteenAmendmentMember |  |
July 2014 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior credit facility, maximum borrowing capacity |  |  |  |  | 900,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember |  |  |  |  |
Capitalized incremental financing costs |  |  |  |  | 3,200,000 us-gaap_DeferredFinanceCostsGross / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember |  |  |  |  |
Cash balance threshold above which excess amount is not subject to any restriction of use or investment |  |  |  |  | 40,000,000.0 iart_CashBalanceThresholdAboveWhichExcessCashIsNotSubjectToRestrictionOfUse / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember |  |  |  |  |
Amortization of debt issuance costs |  |  |  |  | 300,000 us-gaap_AmortizationOfFinancingCosts / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember |  |  |  |  |
July 2014 Amendment | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit, commitment fee percentage |  |  |  |  | 0.15%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |
July 2014 Amendment | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit, commitment fee percentage |  |  |  |  | 0.30%us-gaap_LineOfCreditFacilityCommitmentFeePercentage / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  | 422,000,000 us-gaap_ProceedsFromLinesOfCredit / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |
2016 Convertible Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Fair value of outstanding borrowings | 254,000,000 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
Principal amount outstanding | 230,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember | 230,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  | 230,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |
Interest rate on debt |  |  |  |  |  |  |  |  | 1.625%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |
Portion of the debt proceeds that was classified as equity at the time of the offering |  |  |  |  |  |  |  |  | 43,200,000 us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  |  |  |  |  | 5.60%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |
Carrying amount of liability | 213,100,000 us-gaap_ConvertibleDebtNoncurrent / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember | 205,200,000 us-gaap_ConvertibleDebtNoncurrent / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |
Unamortized discount | 16,900,000 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember | 24,800,000 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |
Common stock based on initial conversion rate ratio (in shares) | 17.4092 us-gaap_DebtInstrumentConvertibleConversionRatio1 / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
Principal amount to be considered for conversion purpose | 1,000 iart_PrincipalAmountToBeConsideredForConversionPurpose / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
Initial conversion price, per share | $ 57.44 us-gaap_DebtInstrumentConvertibleConversionPrice1 / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
Maximum selling price of company's common stock | 150.00%iart_MaximumSellingPriceOfCompanysCommonStock / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
Principal amount of notes per average trading price | 1,000 iart_PrincipalAmountOfNotesPerAverageTradingPrice / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
Maximum average conversion value of the Notes | 98.00%iart_MaximumAverageConversionValueOfNotes / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
Earliest conversion date | June 15, 2016 |  |  |  |  |  |  |  |  |
Strike price of the call transaction (in dollars per share) | $ 57.44 iart_DerivativePriceOfCallTransactionStrikePrice / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
Strike price of warrant transactions (in dollars per share) | $ 70.05 iart_StrikePriceOfWarrantTransactions / us-gaap_DebtInstrumentAxis = iart_TwoThousandSixteenSeniorConvertibleNotesMember |  |  |  |  |  |  |  |  |
2012 Senior Convertible Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount outstanding |  |  |  |  |  |  |  |  |  | 165,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = iart_TwoThousandTwelveSeniorConvertibleNotesMember
Interest rate on debt |  |  |  |  |  |  |  |  |  | 2.375%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = iart_TwoThousandTwelveSeniorConvertibleNotesMember
Portion of the debt proceeds that was classified as equity at the time of the offering |  |  |  |  |  |  |  |  |  | 30,600,000 us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent / us-gaap_DebtInstrumentAxis = iart_TwoThousandTwelveSeniorConvertibleNotesMember
Debt Instrument, Interest Rate, Effective Percentage |  |  |  |  |  |  |  |  |  | 6.80%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = iart_TwoThousandTwelveSeniorConvertibleNotesMember
Cost of call transactions |  |  |  |  |  |  |  |  |  | 30,400,000 iart_CostOfCallTransactions / us-gaap_DebtInstrumentAxis = iart_TwoThousandTwelveSeniorConvertibleNotesMember
Proceeds from warrant transactions |  |  |  |  |  |  |  |  |  | 12,200,000 iart_ProceedsFromWarrantTransactions / us-gaap_DebtInstrumentAxis = iart_TwoThousandTwelveSeniorConvertibleNotesMember
Bond hedge contract termination, trading day period (in days) |  |  |  |  |  | 100 days |  |  |  |
Bond hedge contract termination, commencement period (in days) |  |  |  |  |  | 90 days |  |  |  |
Leverage Ratio June 21, 2013 through June 30, 2014 | Senior Credit Facility | June 2013 Amendment | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Maximum consolidated total leverage ratio (net debt to consolidated EBITDA) |  |  |  |  |  |  |  | 4.25 iart_LeverageRatio / iart_CoveredPeriodAxis = iart_LeverageRatioJune212013throughJune302014Member / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember / iart_SeniorCreditFacilityAxis = iart_JuneTwoThousandThirteenAmendmentMember |  |
Leverage Ratio July 01, 2014 through March 31, 2015 | Senior Credit Facility | June 2013 Amendment | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Maximum consolidated total leverage ratio (net debt to consolidated EBITDA) |  |  |  |  |  |  |  | 4.00 iart_LeverageRatio / iart_CoveredPeriodAxis = iart_LevarageRatioJuly012014throughMarch312015Member / us-gaap_DebtInstrumentAxis = iart_SeniorCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember / iart_SeniorCreditFacilityAxis = iart_JuneTwoThousandThirteenAmendmentMember |  |
Revolving Credit Facility | July 2014 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior credit facility, maximum borrowing capacity |  |  |  |  | 750,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember |  |  |  |  |
Proceeds from Lines of Credit |  |  |  |  | 272,000,000 us-gaap_ProceedsFromLinesOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember |  |  |  |  |
Standby Letters of Credit | July 2014 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior credit facility, maximum borrowing capacity |  |  |  |  | 60,000,000.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_StandbyLettersOfCreditMember / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember |  |  |  |  |
Swingline Loan | July 2014 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior credit facility, maximum borrowing capacity |  |  |  |  | 60,000,000.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = iart_SwinglineLoanMember / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember |  |  |  |  |
Term Loan |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Weighted average interest rate on debt | 1.70%us-gaap_DebtWeightedAverageInterestRate / us-gaap_LongtermDebtTypeAxis = iart_TermLoanMember |  |  |  |  |  |  |  |  |
Term loan, amount outstanding | 150,000,000 iart_Termloanamountoutstanding / us-gaap_LongtermDebtTypeAxis = iart_TermLoanMember |  |  |  |  |  |  |  |  |
Fair value of outstanding borrowings | 140,300,000 us-gaap_DebtInstrumentFairValue / us-gaap_LongtermDebtTypeAxis = iart_TermLoanMember |  |  |  |  |  |  |  |  |
Term Loan | July 2014 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Senior credit facility, maximum borrowing capacity |  |  |  |  | $ 150,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember / us-gaap_LongtermDebtTypeAxis = iart_TermLoanMember |  |  |  |  |
Eurodollar | July 2014 Amendment | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rates available to the Company at its option |  |  |  |  | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = us-gaap_EurodollarMember |  |  |  |  |
Eurodollar | July 2014 Amendment | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rates available to the Company at its option |  |  |  |  | 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = us-gaap_EurodollarMember |  |  |  |  |
Federal Funds | July 2014 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rates available to the Company at its option |  |  |  |  | 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember / us-gaap_VariableRateAxis = iart_FederalFundsMember |  |  |  |  |
(LIBOR) | July 2014 Amendment |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rates available to the Company at its option |  |  |  |  | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = iart_JulyTwoThousandFourteenAmendmentMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |  |

X
- Definition The potential increase in the total borrowing capacity with further commitments from the lending syndicate. + References No definition available. + Details
Name: | iart_AdditionalCommitments
Namespace Prefix: | iart_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Bond Hedge Contract Termination, Commencement Period + References No definition available. + Details
Name: | iart_BondHedgeContractTerminationCommencementPeriod
Namespace Prefix: | iart_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Cash Balance Threshold Above Which Excess Cash Is Not Subject to Restriction of Use + References No definition available. + Details
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Namespace Prefix: | iart_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The cost of the call transactions entered into in connection with the convertible debt. + References No definition available. + Details
Name: | iart_CostOfCallTransactions
Namespace Prefix: | iart_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Derivative price of the call transaction, strike price. + References No definition available. + Details
Name: | iart_DerivativePriceOfCallTransactionStrikePrice
Namespace Prefix: | iart_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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- Definition The earliest conversion date if none of the other conversion criteria are met + References No definition available. + Details
Name: | iart_EarliestConversionDate
Namespace Prefix: | iart_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Excess cash which is used in the consolidated total leverage ratio, that is not subject to any restriction on the use or investment. + References No definition available. + Details
Name: | iart_LeverageRatio
Namespace Prefix: | iart_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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- Definition The notes are convertible if the average trading price per $1000 principal amount of notes is less than or equal to this percentage of the average conversion value of the notes during a period as defined in the indenture. + References No definition available. + Details
Name: | iart_MaximumAverageConversionValueOfNotes
Namespace Prefix: | iart_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The notes are convertible if the closing price of the Company's stock price exceeds this percentage of the conversion price during a period as defined in the indenture. + References No definition available. + Details
Name: | iart_MaximumSellingPriceOfCompanysCommonStock
Namespace Prefix: | iart_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of Trading Days + References No definition available. + Details
Name: | iart_NumberOfTradingDays
Namespace Prefix: | iart_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Principal amount of notes for determining if the average trading price is in excess of this percentage of the conversion value. + References No definition available. + Details
Name: | iart_PrincipalAmountOfNotesPerAverageTradingPrice
Namespace Prefix: | iart_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Principal amount of notes for each initial conversion into common shares. + References No definition available. + Details
Name: | iart_PrincipalAmountToBeConsideredForConversionPurpose
Namespace Prefix: | iart_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The proceeds received from the warrant transactions entered into in connection with the convertible debt. + References No definition available. + Details
Name: | iart_ProceedsFromWarrantTransactions
Namespace Prefix: | iart_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of term loan reallocated to revolving credit facility in connection with the second amendment to the agreement. + References No definition available. + Details
Name: | iart_ReallocatedTermLoan
Namespace Prefix: | iart_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Strike price of the warrant transactions entered into with affiliates of the initial purchasers of the Notes. + References No definition available. + Details
Name: | iart_StrikePriceOfWarrantTransactions
Namespace Prefix: | iart_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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- Definition Term loan - The term loan portion of the Senior Credit Facility outstanding on the balance sheet date. + References No definition available. + Details
Name: | iart_Termloanamountoutstanding
Namespace Prefix: | iart_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 8 -Article 9 + Details
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- Definition Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(5)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Conversion Rate -URI http://asc.fasb.org/extlink&oid=6509012 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition For an unclassified balance sheet, the amount as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. Such amount is before the consideration of accumulated amortization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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