Summary of Significant Accounting Policies and Supplemental Balance Sheet Information - Schedule of Carrying Amount of Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Goodwill [Line Items]
Goodwill as of September 30, 2020	$ 40,710	$ 45,606
Foreign currency translation adjustment	2,236	(5,173)
Measurement period adjustments		277
Goodwill as of September 30, 2021	42,946	40,710
In Vitro Diagnostics [Member]
Goodwill [Line Items]
Goodwill as of September 30, 2020	8,010	8,010
Goodwill as of September 30, 2021	8,010	8,010
Medical Device [Member]
Goodwill [Line Items]
Goodwill as of September 30, 2020	32,700	37,596
Foreign currency translation adjustment	2,236	(5,173)
Measurement period adjustments		277
Goodwill as of September 30, 2021	$ 34,936	$ 32,700