Fair value measurement (Tables)

6 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

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

As of March 31, 2022, financial assets and liabilities measured and recognized at fair value are as follows:

(in thousands)	Level 1		Level 2		Level 3		Fair value
Assets
Money market funds	$	349,277	$	—	$	—	$	349,277
Corporate bonds	—		29,817		—		29,817
Commercial paper	—		54,945		—		54,945
U.S. government treasury bills	112,056		—		—		112,056
Total financial assets	$	461,333	$	84,762	$	—	$	546,095
Liabilities
Contingent consideration and holdbacks	$	—	$	11,398	$	5,700	$	17,098
Total financial liabilities	$	—	$	11,398	$	5,700	$	17,098

As of September 30, 2021, financial assets and liabilities measured and recognized at fair value are as follows:

(in thousands)	Level 1		Level 2		Level 3		Fair value
Assets
Money market funds	$	430,438	$	—	$	—	$	430,438
U.S. government treasury bills	12,034		—		—		12,034
Total financial assets	$	442,472	$	—	$	—	$	442,472
Liabilities
Contingent consideration and indemnity holdback	$	—	$	9,856	$	—	$	9,856
Total financial liabilities	$	—	$	9,856	$	—	$	9,856

Summary of Reconciliation of Beginning and Ending Balances of the Level 3 Instruments

The following table provides a reconciliation of beginning and ending balances of the Level 3 financial liabilities during the three months ended March 31, 2022:

(in thousands)	Total
Balance as of September 30, 2021	$	—
Contingent consideration – additions	8,500
Change in fair value	(2,800)
Balance as of March 31, 2022	$	5,700