ACQUISITIONS AND DIVESTITURES - Divestitures, Narrative (Details) - USD ($) $ in Thousands			3 Months Ended		12 Months Ended
	Dec. 31, 2021	Jan. 04, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain from the sale of business			$ 0	$ 42,876
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 from the sale of business					$ 41,800
Disposal group, payment related to working capital and closing adjustments	$ 1,300
Transitional supply agreement, payable			$ 8,500
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