Fair value measurement (Tables)

12 Months Ended

Sep. 30, 2024

Fair Value Disclosures [Abstract]

Summary of Company's Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis

As of September 30, 2024, financial assets measured and recognized at fair value are as follows:

(in thousands)	Level 1		Level 2		Level 3		Fair value
Assets
Money market funds	$	199,858	$	—	$	—	$	199,858
U.S. government treasury bills	50,083		—		—		50,083
Total financial assets	$	249,941	$	—	$	—	$	249,941

As of September 30, 2023, financial assets measured and recognized at fair value are as follows:

(in thousands)	Level 1		Level 2		Level 3		Fair value
Assets
Money market funds	$	245,654	$	—	$	—	$	245,654
Corporate Bonds	—		14,889		—		14,889
U.S. government treasury bills	35,054		—		—		35,054
Total financial assets	$	280,708	$	14,889	$	—	$	295,597

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The following table provides a reconciliation of beginning and ending balances of the financial liabilities during the years ended September 30, 2023 and 2022:

(in thousands)	Holdbacks Level 2		Contingent consideration Level 3		Total fair value
Balance at September 30, 2022	$	5,093	$	2,100	$	7,193
Change in fair value	(3,326)		(2,100)		(5,426)
Settlement	(1,767)		—		(1,767)
Balance at September 30, 2023	$	—	$	—	$	—

Summary of Reconciliation of Beginning and Ending Balances

The following table provides a reconciliation of beginning and ending balances of the Level 3 financial assets and liabilities during the years ended September 30, 2024 and 2023:

(in thousands)	Contingent consideration		Equity investments
Balance as of September 30, 2022	$	2,100	$	3,711
Change in fair value	(2,100)		—
Additions during the year	—		—
Balance as of September 30, 2023	$	—	$	3,711
Additions during the year	—		—
Impairment	—		(2,186)
Balance as of September 30, 2024	$	—	$	1,525