Summary of Significant Accounting Policies and Select Balance Sheet Information - Schedule of Carrying Amount of Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Goodwill [Line Items]
Goodwill as of September 30, 2019	$ 27,185	$ 26,171
Acquisition of Vetex Medical Limited	19,089
Foreign currency translation adjustment	(668)	1,014
Goodwill as of September 30, 2020	45,606	27,185
In Vitro Diagnostics [Member]
Goodwill [Line Items]
Goodwill as of September 30, 2019	8,010	8,010
Goodwill as of September 30, 2020	8,010	8,010
Medical Device [Member]
Goodwill [Line Items]
Goodwill as of September 30, 2019	19,175	18,161
Acquisition of Vetex Medical Limited	19,089
Foreign currency translation adjustment	(668)	1,014
Goodwill as of September 30, 2020	$ 37,596	$ 19,175

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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