Long-Term Debt - Schedule of Interest Expense (Details) - 2028 Senior Notes - Convertible Debt - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2024	Jun. 30, 2024
Debt Instrument [Line Items]
Interest expense	$ 3,234	$ 9,631
Amortization of discount and issuance costs	680	2,040
Total interest expense	$ 3,914	$ 11,671