Acquisitions and Divestitures - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
May. 31, 2015
Dec. 31, 2014
Oct. 31, 2014
Sep. 30, 2014
Aug. 31, 2014
Dec. 31, 2013
Aug. 31, 2013
Business Acquisition [Line Items]                
Goodwill $ 17,789   $ 17,281       $ 15,031  
InaVein LLC [Member]                
Business Acquisition [Line Items]                
Current assets               $ 670
Property and equipment, net               154
Intangible assets               1,143
Goodwill               668
Total assets acquired               2,635
Total liabilities assumed       $ (200)       (100)
Purchase price               $ 2,535
Xenotis Pty Ltd [Member]                
Business Acquisition [Line Items]                
Current assets           $ 2,110    
Property and equipment, net           2,054    
Intangible assets           1,794    
Goodwill           2,475    
Total assets acquired           8,433    
Total liabilities assumed           (1,731)    
Purchase price           $ 6,702    
AngioScope [Member]                
Business Acquisition [Line Items]                
Inventory         $ 26      
Property and equipment, net         38      
Intangible assets         276      
Goodwill         80      
Total assets acquired         420      
Purchase price         $ 420      
Tru-Incise Valvulotome [Member]                
Business Acquisition [Line Items]                
Inventory   $ 88            
Intangible assets   545            
Goodwill   742            
Purchase price   $ 1,375