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Inventories - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022
Inventory [Line Items] |  |  |
Write-down of inventory | $ 2,813 | $ 2,620 | $ 102
Semiconductor Fabrication Solutions |  |  |
Inventory [Line Items] |  |  |
Write-down of inventory | $ 400 | $ 1,500 |

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- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 330 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483080/330-10-50-2 + Details
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- Details
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