Geographic, product and industry information - Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenue	$ 203,565	$ 132,333	$ 90,100
Americas
Segment Reporting Information [Line Items]
Revenue	122,473	77,909	59,164
EMEA
Segment Reporting Information [Line Items]
Revenue	62,078	44,124	25,821
APAC
Segment Reporting Information [Line Items]
Revenue	$ 19,014	$ 10,300	$ 5,115

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details