Related party transactions	9 Months Ended
	Jun. 30, 2023
Related Party Transactions [Abstract]
Related party transactions	Related party transactionsDuring the three months ended June 30, 2023 and 2022, the Company purchased raw materials from a related party investor in the amount of $1.4 million and $3.1 million, respectively. During the nine months ended June 30, 2023 and 2022, the Company purchased raw materials from a related party in the amount of $5.0 million and $6.5 million, respectively. During the three and nine months ended June 30, 2023, the Company recognized revenues from related parties in the amount of $0.9 million and $3.6 million, respectively. The revenues from related parties were immaterial for the three and nine months ended June 30, 2022.Payable balances and receivable balances with the related party were immaterial as of June 30, 2023 and September 30, 2022. During the year ended September 30, 2022, the Company entered into a service agreement with a related party for the total consideration of $0.1 million.