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Acquisitions - Escrow (Details) - USD ($)
$ in Millions
3 Months Ended
Nov. 15, 2018
Mar. 31, 2019
Sep. 30, 2020
Apr. 20, 2018
Apr. 06, 2018
Oct. 05, 2017
GENEWIZ            
Business Acquisition [Line Items]            
Escrow deposit $ 32.3          
Escrow deposit for acquiree's employees retention obligations 1.5          
Reversal of liability associated with adjustment holdback   $ 1.5        
Seller's cash $ 0.7          
Escrow collected   $ 1.8        
Tec-Sem Group AG            
Business Acquisition [Line Items]            
Escrow deposit         $ 2.6  
Escrow deposit for acquiree's employees retention obligations         1.8  
Escrow balance related to performance obligations         $ 0.8  
4titude Limited            
Business Acquisition [Line Items]            
Escrow deposit           $ 0.4
Escrow deposit for acquiree's employees retention obligations     $ 0.2     $ 0.4
BioSpeciMan Corporation            
Business Acquisition [Line Items]            
Escrow deposit       $ 0.5