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SELECTED QUARTERLY INFORMATION - UNAUDITED (Narrative) (Details) (USD $) | 3 Months Ended | 12 Months Ended | 1 Months Ended
--- | --- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Jul. 31, 2013
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Goodwill impairment charge |  |  |  |  | $ 0 us-gaap_GoodwillImpairmentLoss | $ 46,738,000 us-gaap_GoodwillImpairmentLoss | $ 0 us-gaap_GoodwillImpairmentLoss |
Global ERP implementation costs | 5,600,000 iart_GlobalErpImplementationCosts | 5,000,000 iart_GlobalErpImplementationCosts | 7,600,000 iart_GlobalErpImplementationCosts | 6,100,000 iart_GlobalErpImplementationCosts |  |  |  |
FDA remediation costs | 400,000 iart_FdaRemediationCosts | 2,800,000 iart_FdaRemediationCosts | 3,000,000 iart_FdaRemediationCosts | 2,100,000 iart_FdaRemediationCosts |  |  |  |
U.S. Spine |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |
Goodwill impairment charge |  |  |  |  |  |  |  | $ 46,700,000 us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = iart_U.S.SpineMember

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- Definition Costs related to the remediation of the FDA inspection findings. + References No definition available. + Details
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -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 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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