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Revenue (Summary of Amounts Recognized Related to Changes in Estimated Total Lifetime Sales for Material Rights and Costs to Fulfill Contracts With Customers) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Change in Contract with Customer, Asset and Liability [Abstract] |  |  |
Revenue | $ 1,462 | $ 17,154 | $ 1,460
Cost of goods sold | $ 1,855 | $ 15,486 | $ 1,736

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- References No definition available. + Details
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- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from contract modification which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Contract with customer liability cumulative catch up adjustment to cogs modification of contract + References No definition available. + Details
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