Investment in Equity Securities - Narrative (Details)		12 Months Ended
	May 02, 2025 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Promissory note receivable received as consideration for sale of business		$ 1,696,000	$ 0	$ 0
Equity interest accounted for the investment at fair value		53,890,000	0	0
Promissory note receivable, annual interest percentage	0.04
Gain on sale of business		48,847,000	0	$ 0
Variable interest entity, primary beneficiary, maximum loss exposure, amount		56,000,000
Variable interest entity impairments		0
Fair value, measurement with unobservable inputs reconciliation, recurring basis, liability value		400,000
Equity securities without readily determinable fair value, impairment loss, annual amount		1,100,000	$ 2,200,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | DNA Digital Data Storage
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Fair value of promissory note receivable		1,700,000
Carrying value of promissory note receivable		1,800,000
Atlas Data Storage, Inc | Disposal Group, Disposed of by Sale, Not Discontinued Operations | DNA Digital Data Storage
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Collaborative arrangement, consideration transferred	$ 73,000,000
Upfront cash consideration	2,500,000
Promissory note receivable received as consideration for sale of business	2,000,000
Contribution agreement, contingent manufacturing and commercial milestone payments	75,000,000
Equity interest accounted for the investment at fair value	53,890,000
Fair value of promissory note receivable	1,696,000
Gain on sale of business	$ 48,847,000	$ 48,800,000