Intangible Assets and Goodwill - Schedule of Weighted Average Remaining Useful Lives by Definite-lived Intangible Asset (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Mar. 31, 2023	Sep. 30, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 14,991	$ 14,251
Accumulated Amortization	(8,924)	(8,311)
Net Book Value	$ 6,067	$ 5,940
Technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	3 years 7 months 6 days	5 years 4 months 24 days
Gross Carrying Amount	$ 11,001	$ 10,991
Accumulated Amortization	(8,587)	(8,261)
Net Book Value	$ 2,414	$ 2,730
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	3 years 1 month 6 days	4 years 7 months 6 days
Gross Carrying Amount	$ 3,990	$ 3,260
Accumulated Amortization	(337)	(50)
Net Book Value	$ 3,653	$ 3,210