v3.23.1
Goodwill and intangible assets - Intangible Assets Balances (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 66,130 $ 19,650
Accumulated amortization (6,392) (1,388)
Net book value $ 59,738 $ 18,262
Developed Technology    
Acquired Finite-Lived Intangible Assets [Line Items]    
Weighted average Amortization period in years 11 years 16 years
Gross carrying amount $ 50,020 $ 19,120
Accumulated amortization (4,375) (1,361)
Net book value $ 45,645 $ 17,759
Customer Relationships    
Acquired Finite-Lived Intangible Assets [Line Items]    
Weighted average Amortization period in years 11 years 1 year 6 months
Gross carrying amount $ 15,210 $ 510
Accumulated amortization (1,767) (7)
Net book value $ 13,443 $ 503
Tradenames & Trademarks    
Acquired Finite-Lived Intangible Assets [Line Items]    
Weighted average Amortization period in years 3 years 2 years
Gross carrying amount $ 900 $ 20
Accumulated amortization (250) (20)
Net book value $ 650 $ 0