Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Non- controllling Interest
Beginning balance at Sep. 30, 2021	$ 408,822	$ 197	$ 1,053,386	$ (69)	$ (644,692)	$ 0
Beginning balance (in shares) at Sep. 30, 2021		104,327,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	24,504		24,504
Exercise of stock options	2,145		2,145
Exercise of stock options (in shares)		208,000
Common stock - restricted stock units vesting (in shares)		263,000
Foreign currency translation adjustments	(39)			(39)
Net loss	(62,872)				(62,872)
Ending balance at Dec. 31, 2021	372,560	$ 197	1,080,035	(108)	(707,564)	0
Ending balance (in shares) at Dec. 31, 2021		104,798,000
Beginning balance at Sep. 30, 2022	418,339	$ 198	1,219,213	(136)	(820,755)	19,819
Beginning balance (in shares) at Sep. 30, 2022		105,960,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	19,390		19,390
Exercise of stock options	$ 576		576
Exercise of stock options (in shares)	81,733	82,000
Common stock - restricted stock units vesting	$ 0	$ 1	(1)
Common stock - restricted stock units vesting (in shares)		98,000
Foreign currency translation adjustments	(122)			(122)
Interest in joint venture	(486)					(486)
Net loss	(41,325)				(41,325)
Ending balance at Dec. 31, 2022	$ 396,372	$ 199	$ 1,239,178	$ (258)	$ (862,080)	$ 19,333
Ending balance (in shares) at Dec. 31, 2022		106,140,000