Stock-Based Compensation - Summarize Information about Stock Options (Details)	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares
Shares
Beginning balance (in shares) | shares	2,721,384
Granted (in shares) | shares	32,151
Cancelled (in shares) | shares	(50,708)
Exercised (in shares) | shares	(439,350)
Ending balance (in shares) | shares	2,263,477
Number of Options Outstanding, Exercisable (in shares) | shares	2,141,592
Weighted- Average Exercise Price Per Share
Beginning balance (in dollars per share) | $ / shares	$ 20.73
Granted (in dollars per share) | $ / shares	33.03
Cancelled (in dollars per share) | $ / shares	60.72
Exercised (in dollars per share) | $ / shares	6.94
Ending balance (in dollars per share) | $ / shares	22.68
Weighted-Average Exercise Price Per Share, Exercisable (in dollars per share) | $ / shares	$ 21.45
Weighted-Average Remaining Contractual Term, Outstanding	4 years 3 months 18 days
Weighted-Average Remaining Contractual Term, Exercisable	4 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding | $	$ 26,795,879
Aggregate Intrinsic Value, Exercisable | $	$ 26,786,757