Debt (Tables)

3 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Long Term Debt Instruments

The following table presents the Company's debt instruments outstanding:

	December 31, 2023						December 31, 2022						September 30, 2023
(in thousands)	Gross Amount		Debt Issuance Costs		Carrying Amount		Gross Amount		Debt Issuance Costs		Carrying Amount		Gross Amount		Debt Issuance Costs		Carrying Amount
2029 Convertible Notes	$	230,000	$	(6,472)	$	223,528	$	230,000	$	(7,351)	$	222,649	$	230,000	$	(6,716)	$	223,284
2025 Convertible Notes	103,373		(678)		102,695		103,373		(1,181)		102,192		103,373		(810)		102,563
2024 Convertible Notes	34,389		(82)		34,307		34,389		(246)		34,143		34,389		(124)		34,265
Total	$	367,762	$	(7,232)	$	360,530	$	367,762	$	(8,778)	$	358,984	$	367,762	$	(7,650)	$	360,112
Less current portion	34,389		(82)		34,307		—		—		—		34,389		(124)		34,265
Total long-term debt	$	333,373	$	(7,150)	$	326,223	$	367,762	$	(8,778)	$	358,984	$	333,373	$	(7,526)	$	325,847

Schedule of Maturities of Long-Term Debt

The following table presents the Company’s contractual maturities related to the debt instruments as of December 31, 2023:

	Schedule of Contractual Maturities
(in thousands)	2029 Convertible Notes		2025 Convertible Notes		2024 Convertible Notes		Total
Remaining 2024	$	—	$	—	$	34,389	$	34,389
Fiscal 2025	—		103,373		—		103,373
Fiscal 2026	—		—		—		—
Fiscal 2027	—		—		—		—
Fiscal 2028	—		—		—		—
Thereafter	230,000		—		—		230,000
Total long-term debt	$	230,000	$	103,373	$	34,389	$	367,762

Schedule of Interest Expense

The following table presents the Company’s interest expense related to the Convertible Notes for the three months ended December 31, 2023 and 2022:

	Three Months Ended December 31,
(in thousands)	2023		2022
2029 Convertible Notes:
Contractual interest expense	$	2,156	$	431
Amortization of deferred financing costs	244		52
Total interest expense	$	2,400	$	483
2025 Convertible Notes:
Contractual interest expense	$	614	$	942
Amortization of deferred financing costs	131		188
Gain on extinguishment	—		(5,389)
Total interest expense	$	745	$	(4,259)
2024 Convertible Notes:
Contractual interest expense	$	247	$	876
Amortization of deferred financing costs	42		138
Loss on extinguishment	—		8,935
Total interest expense	$	289	$	9,949