| Document and Entity Information | Feb. 19, 2020 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 19, 2020 |
| Entity Registrant Name | INTEGRA LIFESCIENCES HOLDINGS CORP |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 0-26224 |
| Entity Tax Identification Number | 51-0317849 |
| Entity Address, Address Line One | 1100 Campus Road |
| Entity Address, City or Town | Princeton |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 08540 |
| City Area Code | 609 |
| Local Phone Number | 275-0500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, Par Value $.01 Per Share |
| Trading Symbol | IART |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000917520 |
| Amendment Flag | false |
