Stock-Based Compensation - Summarize Information about Stock Options (Details) - USD ($)	6 Months Ended
Mar. 31, 2023
Shares
Beginning balance (in shares)	2,721,384
Granted (in shares)	32,151
Cancelled (in shares)	(25,581)
Exercised (in shares)	(145,637)
Ending balance (in shares)	2,582,317
Number of Options Outstanding, Exercisable (in shares)	2,348,193
Weighted- Average Exercise Price Per Share
Beginning balance (in dollars per share)	$ 20.73
Granted (in dollars per share)	33.03
Cancelled (in dollars per share)	58.07
Exercised (in dollars per share)	7.50
Ending balance (in dollars per share)	21.26
Weighted-Average Exercise Price Per Share, Exercisable (in dollars per share)	$ 18.75
Weighted- Average Remaining Contractual Term (Years)	4 years 6 months
Weighted-Average Remaining Contractual Term, Exercisable	4 years 2 months 12 days
Aggregate Intrinsic Value	$ 30,107,439
Aggregate Intrinsic Value, Exercisable	$ 30,100,306

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.