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Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Balance at Beginning of Period | $ 428 |
Balance at Beginning of Period | 13,636 |
Charged to Costs and Expenses, net of Recoveries | 292 | $ (76)
Balance at End of Period | 591 | 428
Balance at End of Period | 13,971 | 13,636
Inventory Obsolescence Reserve |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Balance at Beginning of Period | 36,936 | 34,960
Charged to Costs and Expenses | 3,222 | 3,001
(Deductions) and Additions | (787) | (1,025)
Balance at End of Period | 39,371 | 36,936
Allowance for Doubtful Accounts on Accounts and Financing Receivables |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |
Balance at Beginning of Period | 428 | 496
Charged to Costs and Expenses, net of Recoveries | 292 | (76)
(Deductions) and Additions | (129) | 8
Balance at End of Period | $ 591 | $ 428

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