Acquisitions - Summary of Final Allocation of Purchase Consideration as of Acquisition Date (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Business Acquisition [Line Items]
Goodwill	$ 40,710	$ 45,606	$ 27,185
Vetex Medical Limited [Member]
Business Acquisition [Line Items]
Current assets	18
Property and equipment	37
Intangible assets	27,600
Other non-current assets	37
Accrued compensation	(236)
Other accrued liabilities	(111)
Deferred income taxes	(3,087)
Net assets acquired	24,258
Goodwill	19,366
Total purchase consideration, net of cash acquired	$ 43,624