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Acquisitions - Summary of Preliminary Allocation of Purchase Consideration (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Business Acquisition [Line Items]      
Goodwill $ 45,606 $ 27,185 $ 26,171
Vetex Medical Limited [Member]      
Business Acquisition [Line Items]      
Current assets 66    
Property and equipment 37    
Intangible assets 27,600    
Other non-current assets 133    
Accrued compensation (236)    
Other accrued liabilities (111)    
Deferred income taxes (2,954)    
Net assets acquired 24,535    
Goodwill 19,089    
Total purchase consideration, net of cash acquired $ 43,624