Stockholders' Equity - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2024	Jun. 30, 2023	Sep. 30, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expired date							Apr. 17, 2024
Remaining shares reserved for issuance	2,422,677						2,422,677
Shares and options vesting period							3 years
Common stock repurchases	$ 373	$ 7,907	$ 1,171	$ 4,268	$ 9,814	$ 7,199
Remaining repurchase amount	$ 7,600						$ 7,600		$ 17,000
Common stock surrendered in the exercise of stock options (in shares)							0	12,215
Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares available for issuance	20,300,000						20,300,000
Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares available for issuance	22,800,000						22,800,000
December 2022 Repurchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares repurchased	22,242						564,887
Common stock repurchases	$ 400						$ 9,400
Stock Option - Service Based
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares and options vesting period							4 years