Share-Based Compensation - Schedule of Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Employee stock purchase plan
Compensation expense	$ 3,046	$ 2,480
Equity classified awards
Employee stock purchase plan
Compensation expense	2,783	2,480
Liability classified awards
Employee stock purchase plan
Compensation expense	106	0
Employee stock purchase plan
Employee stock purchase plan
Compensation expense	$ 157	$ 0