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Legal Proceedings (Details) - USD ($)
$ in Millions
 6 Months Ended
Jan. 18, 2017
Jun. 30, 2017
Loss Contingencies [Line Items]    
Product liability insurance, amount per incident   $ 25.0
Product liability insurance, aggregate annual amount   25.0
Lexion Alleged Lost Profits [Member]    
Loss Contingencies [Line Items]    
Damages sought   22.0
Lexion Costs Related to Alleged Corrective Advertising [Member]    
Loss Contingencies [Line Items]    
Damages sought   18.7
Pending Litigation [Member] | EndoDynamix, Inc. [Member]    
Loss Contingencies [Line Items]    
Damages sought $ 12.7  
SurgiQuestInc | Selling and Administrative Expenses [Member]    
Loss Contingencies [Line Items]    
Compensatory damages awarded   2.2
Punitive damages awarded   $ 10.0