Stock-based Compensation - Schedule of Stock Options Outstanding (Details) - Stock options	9 Months Ended
	Jun. 30, 2024 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (in shares) | shares	13,575
Granted (shares) | shares	50
Exercised (in shares) | shares	(2,110)
Outstanding at end of period (in shares) | shares	11,515
Exercisable at end of period (in shares) | shares	11,365
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period, weighted average exercise price (in USD per share) | $ / shares	$ 9.61
Granted (in USD per share) | $ / shares	27.73
Exercised (in USD per share) | $ / shares	7.56
Outstanding at end of period, weighted average exercise price (in USD per share) | $ / shares	10.07
Exercisable at end of period (in USD per share) | $ / shares	$ 9.83