Debt (Tables)

6 Months Ended

Mar. 31, 2021

Debt Disclosure [Abstract]

Schedule of Long Term Debt Instruments

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

	March 31, 2021						March 31, 2020						September 30, 2020
(in thousands)	Gross Amount		Debt Discount and Issuance Costs		Carrying Amount		Gross Amount		Debt Discount and Issuance Costs		Carrying Amount		Gross Amount		Debt Discount and Issuance Costs		Carrying Amount
2024 Convertible Notes	$	143,750	$	(23,443)	$	120,307	$	143,750	$	(29,554)	$	114,196	$	143,750	$	(26,557)	$	117,193
2025 Convertible Notes	172,500		(35,664)		136,836		172,500		(42,876)		129,624		172,500		(39,336)		133,164
8.5% unsecured debt due 2024*	—		—		—		983		—		983		872		—		872
CASHMAX secured borrowing facility*	—		—		—		281		(529)		(248)		—		—		—
Total	$	316,250	$	(59,107)	$	257,143	$	317,514	$	(72,959)	$	244,555	$	317,122	$	(65,893)	$	251,229
Less current portion	—		—		—		267		—		267		213		—		213
Total long-term debt	$	316,250	$	(59,107)	$	257,143	$	317,247	$	(72,959)	$	244,288	$	316,909	$	(65,893)	$	251,016

* Amount translated from Guatemalan quetzals and Canadian dollars as of applicable period end. Certain disclosures omitted due to materiality considerations.

The following table presents the Company's contractual maturities related to the debt instruments as of March 31, 2021:

	Schedule of Contractual Maturities
(in thousands)	Total		Less Than 1 Year		1 - 3 Years		3 - 5 Years		More Than 5 Years
2024 Convertible Notes*	$	143,750	$	—	$	—	$	143,750	$	—
2025 Convertible Notes*	172,500		—		—		172,500		—
	$	316,250	$	—	$	—	$	316,250	$	—

* Excludes the potential impact of embedded derivatives as discussed below.

The following table presents the Company's interest expense related to the Convertible Notes for the three and six months ended March 31, 2021 and 2020:

	Three Months Ended March 31,				Six Months Ended March 31,
(in thousands)	2021		2020		2021		2020
2024 Convertible Notes:
Contractual interest expense	$	1,033	$	1,033	$	2,066	$	2,066
Amortization of debt discount and deferred financing costs	1,572		1,457		3,114		2,886
Total interest expense	$	2,605	$	2,490	$	5,180	$	4,952
2025 Convertible Notes:
Contractual interest expense	$	1,024	$	1,024	$	2,048	$	2,048
Amortization of debt discount and deferred financing costs	1,853		1,722		3,672		3,413
Total interest expense	$	2,877	$	2,746	$	5,720	$	5,461