Long-Term Debt (Tables)

9 Months Ended

Jun. 30, 2022

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt consisted of the following (in thousands):

	June 30, 2022			September 30, 2021
3.00% Convertible Senior Notes due 2025, net of unamortized discount of $12,233 and $15,019, respectively, and deferred issuance costs of $3,076 and $3,776, respectively. Effective interest rate 6.29%.	$	159,691		$	156,205
Senior Credit Facilities, net of unamortized discount of $1,440 and $1,829, respectively, and deferred issuance costs of $174 and $221, respectively. Effective interest rate 3.86% and 2.86%, respectively.		110,886			115,138
Total debt	$	270,577		$	271,343
Less: current portion		(9,375	)		(6,250	)
Total long-term debt	$	261,202		$	265,093

Summary of Maturities of Borrowing Obligations

The following table summarizes the maturities of our borrowing obligations as of June 30, 2022 (in thousands):

Fiscal Year	Convertible Senior Notes			Senior Facilities			Total
2022	$	—		$	1,562		$	1,562
2023		—			10,938			10,938
2024		—			12,500			12,500
2025		175,000			87,500			262,500
Total before unamortized discount and issuance costs and current portion	$	175,000		$	112,500		$	287,500
Less: unamortized discount and issuance costs		(15,309	)		(1,614	)		(16,923	)
Less: current portion of long-term debt		—			(9,375	)		(9,375	)
Total long-term debt	$	159,691		$	101,511		$	261,202

Schedule of Interest Expense Related to Notes

The interest expense recognized related to the Notes for the three and nine months ended June 30, 2022 and 2021 was as follows (dollars in thousands):

	Three Months Ended June 30,				Nine Months Ended June 30,
	2022		2021		2022		2021
Contractual interest expense	$	1,308	$	1,308	$	3,924	$	3,924
Amortization of debt discount		943		886		2,786		2,617
Amortization of issuance costs		237		223		700		658
Total interest expense related to the Notes	$	2,488	$	2,417	$	7,410	$	7,199