Stockholders' Equity - Schedule of Non-vested Restricted Stock Units (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares
Time-Based Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Non-vested, Shares, Beginning balance	2,372,145
Non-vested, Shares, Granted	2,289,140,000
Non-vested, Shares, Vested	(1,266,750,000)
Non-vested, Shares, Forfeited	(807,149,000)
Non-vested, Shares, Ending balance	2,587,386
Performance-Based Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Non-vested, Shares, Beginning balance	1,145,550
Non-vested, Shares, Granted	454,718,000
Non-vested, Shares, Vested	(63,998,000)
Non-vested, Shares, Forfeited	(416,833,000)
Non-vested, Shares, Ending balance	1,119,437
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Non-vested, Shares, Beginning balance	3,517,695
Non-vested, Shares, Granted	2,743,858,000
Non-vested, Shares, Vested	(1,330,748,000)
Non-vested, Shares, Forfeited	(1,223,982,000)
Non-vested, Shares, Ending balance	3,706,823
Non-vested, Shares, Expected to vest	3,706,823
Non-vested, Weighted-Average Grant-Date Fair Value, Beginning balance | $ / shares	$ 32.52
Non-vested, Weighted-Average Grant-Date Fair Value, Granted | $ / shares	17.1
Non-vested, Weighted-Average Grant-Date Fair Value, Vested | $ / shares	35.89
Non-vested, Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares	26.14
Non-vested, Weighted-Average Grant-Date Fair Value, Ending balance | $ / shares	23.51
Non-vested, Weighted-Average Grant-Date Fair Value, Expected to vest | $ / shares	$ 23.51
Non-vested, Weighted-Average Remaining Contractual Term (years), Expected to vest	10 months 13 days
Non-vested, Aggregate Intrinsic Value, Expected to vest | $	$ 11,639