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Legal Proceedings (Details) - USD ($)
$ in Millions
Jan. 18, 2017
Mar. 31, 2019
Loss Contingencies [Line Items]    
Product liability insurance, amount per incident   $ 30.0
Product liability insurance, aggregate annual amount   $ 30.0
Pending Litigation | EndoDynamix, Inc.    
Loss Contingencies [Line Items]    
Damages sought $ 12.7