Business Combinations - Goodwill (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Feb. 02, 2023	Oct. 03, 2022	Sep. 30, 2022	Jul. 01, 2022	Sep. 30, 2021	Apr. 02, 2021	Dec. 03, 2020
Business Combination, Goodwill [Abstract]
Goodwill	$ 784,339			$ 513,623		$ 469,356
Life Sciences Products
Business Combination, Goodwill [Abstract]
Goodwill	425,304			154,612		110,138
Life Sciences Services
Business Combination, Goodwill [Abstract]
Goodwill	$ 359,035			$ 359,011		$ 359,218
Ziath Ltd and Subsidiaries
Business Combination, Goodwill [Abstract]
Goodwill		$ 12,000
Goodwill deductible for tax purposes		$ 0
B Medical Systems S.a.r.l and Subsidiaries
Business Combination, Goodwill [Abstract]
Goodwill			$ 228,241
Goodwill deductible for tax purposes			0
B Medical Systems S.a.r.l and Subsidiaries | Life Sciences Products
Business Combination, Goodwill [Abstract]
Goodwill			$ 228,200
Barkey Holding GmbH and Subsidiaries
Business Combination, Goodwill [Abstract]
Goodwill					$ 60,500
Goodwill deductible for tax purposes					$ 0
Abeyatech LLC
Business Combination, Goodwill [Abstract]
Goodwill							$ 4,400
Goodwill deductible for tax purposes							$ 4,400
Trans-Hit Biomarkers
Business Combination, Goodwill [Abstract]
Goodwill								$ 9,300
Trans-Hit Biomarkers | Life Sciences Services
Business Combination, Goodwill [Abstract]
Goodwill								9,300
Goodwill deductible for tax purposes								$ 0