XML 56 R43.htm IDEA: XBRL DOCUMENT
v3.8.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule Of Changes In Carrying Amount Of Goodwill) (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 17, 2015 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Goodwill [Roll Forward] |  |  |  |
Beginning of period |  |  | $ 510,571 | $ 512,389
Foreign currency translation and other |  |  | 9,569 | (1,644)
Divestment to Natus |  |  | (2,861) |
End of period |  |  | 937,905 | 510,571
TEI |  |  |  |
Goodwill [Roll Forward] |  |  |  |
TEI acquisition working capital adjustment | $ 200 |  |  | (174)
Derma Sciences |  |  |  |
Goodwill [Roll Forward] |  |  |  |
TEI acquisition working capital adjustment |  | $ 300 |  |
Acquisition |  |  | 73,765 |
End of period |  |  | 73,765 |
TGX Medical |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisition |  |  | 641 |
End of period |  |  | 641 |
Codman |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisition |  |  | 346,220 |
End of period |  |  | 346,219 |
Codman Specialty Surgical |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning of period |  |  | 284,358 | 284,976
Foreign currency translation and other |  |  | 6,409 | (618)
Divestment to Natus |  |  | (2,861) |
End of period |  |  | 634,767 | 284,358
Codman Specialty Surgical | TEI |  |  |  |
Goodwill [Roll Forward] |  |  |  |
TEI acquisition working capital adjustment |  |  |  | 0
Codman Specialty Surgical | Derma Sciences |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisition |  |  | 0 |
Codman Specialty Surgical | TGX Medical |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisition |  |  | 641 |
Codman Specialty Surgical | Codman |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisition |  |  | 346,220 |
Orthopedics and Tissue Technologies |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Beginning of period |  |  | 226,213 | 227,413
Foreign currency translation and other |  |  | 3,160 | (1,026)
Divestment to Natus |  |  | 0 |
End of period |  |  | 303,138 | 226,213
Orthopedics and Tissue Technologies | TEI |  |  |  |
Goodwill [Roll Forward] |  |  |  |
TEI acquisition working capital adjustment |  |  |  | $ (174)
Orthopedics and Tissue Technologies | Derma Sciences |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisition |  |  | 73,765 |
Orthopedics and Tissue Technologies | TGX Medical |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisition |  |  | 0 |
Orthopedics and Tissue Technologies | Codman |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Acquisition |  |  | $ 0 |

X
- Definition Amount after accumulated impairment loss of an asset representing 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 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits 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 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillForeignCurrencyTranslationGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting 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 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e961-128460 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillPurchaseAccountingAdjustments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_GoodwillRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of divestiture of an asset representing 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 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=iart_TEIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=iart_DermaSciencesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=iart_TGXMedicalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=iart_CodmanSpecialtySurgicalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=iart_OrthopedicsandTissueTechnologiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |