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Goodwill and Intangible Assets - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 11, 2018
Aug. 17, 2018
May 25, 2018
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Business Acquisition [Line Items]            
Goodwill       $ 240.6 $ 201.1  
Deferred payments related to business combinations       16.7 0.0 $ 0.0
Amortization expense related to intangible assets       $ 14.2 $ 12.9 $ 18.2
Vattikuti Technologies Pvt. Ltd.            
Business Acquisition [Line Items]            
Cash payments     $ 38.1      
Net tangible assets acquired     4.1      
Intangible assets acquired     24.2      
Goodwill     $ 9.8      
Weighted average useful life     4 years 3 months 18 days      
InTouch            
Business Acquisition [Line Items]            
Cash payments   $ 22.0        
Intangible assets acquired   13.3        
Goodwill   $ 25.4        
Weighted average useful life   5 years 8 months 12 days        
Total purchase consideration   $ 38.7        
Deferred payments related to business combinations   $ 16.7        
Unison Surgicals Company            
Business Acquisition [Line Items]            
Cash payments $ 35.4          
Net tangible assets acquired 13.1          
Intangible assets acquired 17.3          
Goodwill $ 5.0          
Weighted average useful life 6 years 7 months 6 days          
Cash acquired $ 7.6