Inventories (Details) - USD ($) $ in Thousands  | 
Jun. 30, 2025  | 
Sep. 30, 2024  | 
|---|---|---|
| Inventories, net [Abstract] | ||
| Raw materials | $ 60,543 | $ 61,333 | 
| Work in process | 77,132 | 96,488 | 
| Finished goods | 72,864 | 80,067 | 
| Inventories | $ 210,539 | $ 237,888 | 
| X | ||||||||||
- References No definition available. 
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- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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- Definition Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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