Stock-Based Compensation - Summarize Information about Stock Options (Details)	12 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares
Shares
Beginning balance (in shares) | shares	3,456,239
Granted (in shares) | shares	0
Cancelled (in shares) | shares	(128,635)
Exercised (in shares) | shares	(606,220)
Ending balance (in shares) | shares	2,721,384
Number of Options Outstanding, Exercisable (in shares) | shares	2,351,641
Weighted- Average Exercise Price Per Share
Beginning balance (in dollars per share) | $ / shares	$ 19.60
Granted (in dollars per share) | $ / shares	0
Cancelled (in dollars per share) | $ / shares	47.73
Exercised (in dollars per share) | $ / shares	8.55
Ending balance (in dollars per share) | $ / shares	20.73
Weighted-Average Exercise Price Per Share, Exercisable (in dollars per share) | $ / shares	$ 16.93
Weighted-Average Remaining Contractual Term, Outstanding	4 years 10 months 24 days
Weighted-Average Remaining Contractual Term, Exercisable	4 years 6 months
Aggregate Intrinsic Value, Outstanding | $	$ 48,114,746
Aggregate Intrinsic Value, Exercisable | $	$ 46,889,825