Intangible Assets- Schedule of Weighted Average Remaining Useful Lives by Definite-lived Intangible Asset (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 21,591	$ 21,591
Accumulated Amortization	(10,695)	(10,201)
Net Book Value	$ 10,896	$ 11,390
Technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	6 years 3 months 18 days	6 years 6 months
Gross Carrying Amount	$ 16,901	$ 16,901
Accumulated Amortization	(9,874)	(9,527)
Net Book Value	$ 7,027	$ 7,374
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	6 years 7 months 6 days	6 years 10 months 24 days
Gross Carrying Amount	$ 4,690	$ 4,690
Accumulated Amortization	(821)	(674)
Net Book Value	$ 3,869	$ 4,016