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v3.25.1

Investments, Equity Method and Joint Ventures (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Sep. 30, 2024
Schedule of Equity Method Investments [Line Items] |  |  |
Payments to Acquire Investments | $ 44,900 | $ 380 |
Equity Method Investments | 44,900 |  | $ 0
CB&I |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Payments to Acquire Investments | $ 44,900 |  |
Equity Method Investment, Ownership Percentage | 12.50% |  |
Equity Method Investments | $ 44,900 |  |
Income (Loss) from Equity Method Investments | $ 0 |  |

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