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Other Balance Sheet Information - Summary of Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Raw materials and purchased parts $ 35,594 $ 27,644
Work-in-process 5,855 4,787
Finished goods 39,764 27,967
Inventory, net 81,213 60,398
Reserves for excess and obsolete inventory $ 4,100 $ 3,700