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Derivative Instruments and Hedging Activities - Outstanding Commodity Hedge Contracts (Details) - T | Jun. 30, 2025 | Sep. 30, 2024
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Copper |  |
Derivative [Line Items] |  |
Volume Outstanding | 2,313 | 2,676
Aluminum |  |
Derivative [Line Items] |  |
Volume Outstanding | 974 | 2,450

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