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ACQUISITIONS AND DIVESTITURES - Divestitures, Narrative (Details) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Jan. 04, 2021 | Mar. 31, 2021 | Mar. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Gain from the sale of business |  | $ 42,876 | $ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Extremity Orthopedics |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Sale of Extremity Orthopedics business, disposition price | $ 240,000 |  |
Gain from the sale of business |  | $ 42,900 |
Transitional supply agreement, payable | 9,000 |  |
Consortium of Focused Orthopedists, LLC | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Extremity Orthopedics |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Payment related to contract termination | $ 41,500 |  |

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