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GOODWILL AND OTHER INTANGIBLE ASSETS (Narrative) (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Dec. 31, 2019 USD ($) reporting_unit | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Goodwill [Line Items] |  |  |  |  |  |  |
Number of reporting units | reporting_unit |  |  |  |  | 3 |  |
Goodwill, impairment | $ 0 |  |  |  |  |  |
Impairment charge |  |  |  |  | $ 5,764,000 | $ 4,941,000 | $ 3,290,000
Amortization |  |  |  |  | 72,800,000 | 71,600,000 | 52,800,000
Expected annual amortization expense, 2020 |  |  |  |  | 74,600,000 |  |
Expected annual amortization expense, 2021 |  |  |  |  | 64,100,000 |  |
Expected annual amortization expense, 2022 |  |  |  |  | 60,600,000 |  |
Expected annual amortization expense, 2023 |  |  |  |  | 59,700,000 |  |
Expected annual amortization expense, 2024 |  |  |  |  | 58,900,000 |  |
Expected annual amortization expense, thereafter |  |  |  |  | 547,700,000 |  |
Amortization of product technology |  |  |  |  | $ 45,800,000 | 50,400,000 | $ 35,700,000
Codman |  |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |  |
Impairment assessment, royalty rate | 5.00% |  |  |  |  |  |
Intangible assets, indefinite life, discount rate percentage | 12.50% |  |  |  |  |  |
Codman | Trade name |  |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |  |
Impairment of intangible assets | $ 0 |  |  |  |  |  |
Metasurg | Orthopedics and Tissue Technologies |  |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |  |
Impairment charge |  |  | $ 4,900,000 |  |  |  |
Impairment charge, out of period adjustment included in original impairment |  |  |  |  |  | $ 2,500,000 |
Tarsus | Orthopedics and Tissue Technologies |  |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |  |
Impairment charge |  |  |  | $ 3,300,000 |  |  |
Contract Manufacturing Customer, Notified By FDA To Remove Product From Market | Private Label | Customer relationship |  |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |  |
Impairment charge |  | $ 5,800,000 |  |  |  |  |
Minimum | Codman |  |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |  |
Impairment assessment, tax rate | 17.40% |  |  |  |  |  |
Maximum | Codman |  |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |  |
Impairment assessment, tax rate | 20.70% |  |  |  |  |  |

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