Long-Term Debt - Schedule of Interest Expense (Details) - 2028 Senior Notes - Convertible Debt - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2024
Debt Instrument [Line Items]
Interest expense	$ 3,127	$ 6,397
Amortization of discount and issuance costs	683	1,360
Total interest expense	$ 3,810	$ 7,757