Long-Term Debt (Tables)

3 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

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

	December 31, 2021			September 30, 2021
3.00% Convertible Senior Notes due 2025, net of unamortized discount of $14,095 and $15,019, respectively, and deferred issuance costs of $3,544 and $3,776, respectively. Effective interest rate 6.29%.	$	157,361		$	156,205
Senior Credit Facilities, net of unamortized discount of $1,700 and $1,829, respectively,  and deferred issuance costs of $206 and $221, respectively. Effective interest rate 2.87% and 2.86%, respectively.		113,720			115,138
Total debt	$	271,081		$	271,343
Less: current portion		(6,250	)		(6,250	)
Total long-term debt	$	264,831		$	265,093

Summary of Maturities of Borrowing Obligations

The following table summarizes the maturities of our borrowing obligations as of December 31, 2021 (in thousands):

Fiscal Year	Convertible Senior Notes			Senior Facilities			Total
2022	$	—		$	4,688		$	4,688
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		$	115,626		$	290,626
Less: unamortized discount and issuance costs		(17,639	)		(1,906	)		(19,545	)
Less: current portion of long-term debt		—			(6,250	)		(6,250	)
Total long-term debt	$	157,361		$	107,470		$	264,831

Schedule of Interest Expense Related to Notes

The interest expense recognized related to the Notes for the three months ended December 31, 2021 was as follows (dollars in thousands):

	Three Months Ended December 31,
	2021		2020
Contractual interest expense	$	1,322	$	1,322
Amortization of debt discount		924		868
Amortization of issuance costs		232		218
Total interest expense related to the Notes	$	2,478	$	2,408