Goodwill and Intangible Assets - Goodwill Roll Forward - Tabular Disclosure (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 469,356	$ 453,177
Acquisitions and currency translation adjustments	44,267	16,179
Goodwill, ending balance	513,623	469,356
Life Sciences Products
Goodwill [Roll Forward]
Goodwill, beginning balance	110,138	103,278
Acquisitions and currency translation adjustments	44,474	6,860
Goodwill, ending balance	154,612	110,138
Life Sciences Services
Goodwill [Roll Forward]
Goodwill, beginning balance	359,218	349,899
Acquisitions and currency translation adjustments	(207)	9,319
Goodwill, ending balance	$ 359,011	$ 359,218