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BASIS OF PRESENTATION - NARRATIVE (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 30, 2018
Sep. 30, 2019
Sep. 30, 2019
Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from the disposition of Core business $ 97,000   $ 0 $ 91,095
Manufacture and Supply Agreement | Symmetry Surgical Inc.        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Asset purchase agreement, term 10 years      
Electro Surgical Disposables and Accessories, Cauteries and Other Products Supply Agreement | Symmetry Surgical Inc.        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Asset purchase agreement, term 4 years      
Manufacture and supply agreement 10 years      
Discontinued Operations, Held-for-sale | Electro Surgical Disposables and Accessories, Cauteries and Other Products Supply Agreement | Symmetry Surgical Inc.        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Sales   $ 2,500 6,900  
Cost of sales   2,100 6,600  
Operating expenses   $ 200 $ 300