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Detail of Selected Balance Sheet Accounts - Activity in Warranty Accrual (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]    
Balance at beginning of period $ 2,531 $ 2,771
Increase to warranty expense 1,425 2,140
Deduction for warranty charges (1,564) (2,406)
Change due to foreign currency translation (47) 26
Balance at end of period $ 2,345 $ 2,531