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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) | 3 Months Ended | 9 Months Ended
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Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) reporting_unit | Sep. 30, 2017 USD ($)
Goodwill [Line Items] |  |  |  |
Number of reporting units | reporting_unit |  |  | 3 |
Reporting unit, discount rate percentage | 9.00% |  | 9.00% |
Goodwill, impairment | $ 0 |  |  |
Intangible assets, indefinite life, discount rate percentage | 13.00% |  | 13.00% |
Impairment charge |  |  | $ 4,941,000 | $ 3,290,000
Expected annual amortization expense, 2018 | $ 71,600,000 |  | 71,600,000 |
Expected annual amortization expense, 2019 | 66,400,000 |  | 66,400,000 |
Expected annual amortization expense, 2020 | 66,200,000 |  | 66,200,000 |
Expected annual amortization expense, 2021 | 65,200,000 |  | 65,200,000 |
Expected annual amortization expense, 2022 | 61,700,000 |  | 61,700,000 |
Expected annual amortization expense, 2023 | 60,800,000 |  | 60,800,000 |
Expected annual amortization expense, thereafter | 599,300,000 |  | 599,300,000 |
Metasurg | Orthopedics and Tissue Technologies |  |  |  |
Goodwill [Line Items] |  |  |  |
Impairment charge | 4,900,000 |  | 4,900,000 |
Impairment charge, out of period adjustment included in original impairment | 2,500,000 |  | 2,500,000 |
Metasurg | Orthopedics and Tissue Technologies | Completed technology |  |  |  |
Goodwill [Line Items] |  |  |  |
Remaining net book value | $ 2,300,000 |  | $ 2,300,000 |
Tarsus | Orthopedics and Tissue Technologies |  |  |  |
Goodwill [Line Items] |  |  |  |
Impairment charge |  | $ 3,300,000 |  |

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