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Acquisition and Divestitures - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Detail) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Mar. 18, 2016
May 31, 2015
Business Acquisition [Line Items]        
Goodwill $ 23,645 $ 23,426    
Restore Flow Allografts [Member]        
Business Acquisition [Line Items]        
Accounts receivable 561      
Deferred cryopreservation costs 2,583      
Manufacturing equipment and supplies 125      
Accounts payable (286)      
Intangible assets 4,544      
Goodwill 5,432      
Purchase price $ 12,959      
ProCol Biologic Graft [Member]        
Business Acquisition [Line Items]        
Inventory     $ 2,080  
Manufacturing equipment and supplies     25  
Intangible assets     620  
Goodwill     318  
Purchase price     $ 3,043  
Tru-Incise Valvulotome [Member]        
Business Acquisition [Line Items]        
Inventory       $ 88
Intangible assets       545
Goodwill       742
Purchase price       $ 1,375