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DISPOSITION OF THE CORE BUSINESS - (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 30, 2018
Dec. 31, 2020
Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Proceeds from the disposition of Core business $ 97.0    
Symmetry Surgical Inc. | Electro Surgical Disposables and Accessories, Cauteries and Other Products Supply Agreement      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Asset purchase agreement, term 4 years    
Revenue   $ 9.4 $ 9.4
Cost of sales   8.1 8.8
Operating expenses   0.8 0.5
Net other income   $ 0.5 $ 0.1