Related party transactions	9 Months Ended
	Jun. 30, 2022
Related Party Transactions [Abstract]
Related party transactions	Related party transactionsDuring the three months ended June 30, 2022 and 2021, the Company purchased raw materials from a related party investor in the amount of $3.1 million and $1.2 million, respectively. During the nine months ended June 30, 2022 and 2021, the Company purchased raw materials from a related party in the amount of $6.5 million and $3.5 million, respectively. Payable balances and receivable balances with the related party were immaterial as of June 30, 2022 and September 30, 2021.