Stockholders' Equity - Narrative (Details) - USD ($)			9 Months Ended
	Nov. 25, 2024	Dec. 02, 2022	Jun. 30, 2025	Jun. 30, 2024	Sep. 30, 2024
Class Of Stock [Line Items]
Common stock, share reserve for issuance (in shares)			2,308,495
Warrant exercise price (in dollars per share)	$ 0.001
Number of securities called by warrants (in shares)	917,441
Warrants purchase price (in dollars per share)	$ 27.25
Proceeds from the issuance of warrants	$ 25,000,000.0		$ 25,000,000	$ 0
Number of warrants exercised (in shares)			0
Private Placement
Class Of Stock [Line Items]
Shares of common stock issued (in shares)	11,926,301
Common stock sold price (in dollars per share)	$ 27.25
Proceeds from sale of stock	$ 325,000,000
At The Market Agreement
Class Of Stock [Line Items]
Shares issued to institutional investors (in shares)			0
Maximum | At The Market Agreement
Class Of Stock [Line Items]
Common stock shares value reserved for future issuance		$ 250,000,000
Percentage of commission to sales agent		3.00%
2013 and 2021 Incentive Plans and other inducement grants
Class Of Stock [Line Items]
Common stock, share reserve for issuance (in shares)			10,081,964		11,492,293