ACQUISITIONS AND DIVESTITURES - Divestitures, Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 04, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) from the sale of business		$ (230)	$ 0	$ 41,967	$ 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 business, disposition price	$ 240,000
Gain (loss) from the sale of business				42,000
Disposal group, payment related to working capital and closing adjustments				1,300
Transitional supply agreement, payable		$ 7,200		$ 7,200
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