v3.23.1
Income taxes (Tables)
12 Months Ended
Sep. 30, 2022
Income Tax Disclosure [Abstract]  
Schedule of Domestic and Foreign Components of Pre-Tax Loss
The domestic and foreign components of pre-tax loss for the years ended September 30, 2022, 2021, and 2020 are as follows:
Year ended September 30,
(in thousands)202220212020
US(231,659)(149,533)(138,016)
Foreign3,385(4,495)(1,533)
Total(228,274)(154,028)(139,549)
Schedule of Components of the Provision for Income Taxes
The components of the provision for income taxes for the years ended September 30, 2022, 2021, and 2020 are as follows:
Year ended September 30,
(in thousands)202220212020
Current   
Federal
State(1)(29)0
Foreign767108382
Total current76679382
Deferred
Federal(9,765)(2,268)
State(1,412)259
Foreign
Total deferred(11,177)(2,009)
Total (benefit)/provision(10,411)(1,930)382
Schedule of Effective Income Tax Rate Reconciliation
The following is a reconciliation of the statutory federal income tax rate to the Company’s effective tax rate for the years ended September 30, 2022, 2021, and 2020:
Year ended
September 30,
202220212020
Tax expense computed at the federal statutory rate21 %21 %21 %
Change in valuation allowance(13)%(33)%(25)%
Research and development credit benefit%%%
Business combination (4)%(2)%
Stock-based compensation(1)%12 %%
Change in fair value of contingent consideration and holdbacks (1)%— %— %
Gain on deconsolidation of variable interest entity(1)%— %— %
Total income tax expense%%— %
Schedule of Deferred Tax Assets and Liabilities
The significant components of the Company’s deferred tax assets and liabilities are as follows for the years ended September 30, 2022, and 2021:
September 30,
(in thousands)20222021
Net operating loss carryforwards$191,337 $163,782 
Research and development credit carryforwards35,109 20,163 
Operating lease liability23,118 14,890 
Stock-based compensation 13,138 6,737 
Other11,541 4,894 
Gross deferred tax assets274,243 210,466 
Less: Valuation allowance(240,660)(190,428)
Net deferred tax assets33,583 20,038 
Fixed assets(1,169)(785)
Operating lease right-of-use asset(17,986)(14,893)
Intangible assets(14,428)(4,360)
Gross deferred tax liabilities(33,583)(20,038)
Total net deferred tax asset$— $— 
Schedule of Unrecognized Tax Benefits Roll Forward
The aggregate changes in the balance of gross unrecognized tax benefits are as follows:

(in thousands)Federal
and state
Balance as of September 30, 2019
$3,291 
Increases related to tax positions taken during 2020
1,409 
Balance as of September 30, 2020
$4,700 
Increases related to tax positions taken during 2021
2,737 
Balance as of September 30, 2021
$7,437 
Increases related to tax positions taken during 2022
5,082 
Increases related to tax positions taken in the prior year$864 
Balance as of September 30, 2022
$13,383