Property and Equipment Net - Components of Property and Equipment, Net by Geography (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Property Plant And Equipment [Line Items]
Total long-lived assets	$ 30,139	$ 34,013
United States
Property Plant And Equipment [Line Items]
Total long-lived assets	23,903	26,117
Germany
Property Plant And Equipment [Line Items]
Total long-lived assets	1,440	1,861
Canada
Property Plant And Equipment [Line Items]
Total long-lived assets	1,321	1,695
Other countries
Property Plant And Equipment [Line Items]
Total long-lived assets	$ 3,475	$ 4,340