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Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024 | Sep. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |  |
Contract assets | $ 84,527 |  | $ 84,527 |  | $ 92,969
Transferred over Time |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Contract assets | $ 73,402 |  | $ 73,402 |  | $ 64,246
Revenue Benchmark | Product Concentration Risk | Transferred over Time |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage | 13.00% | 18.00% | 13.00% | 19.00% |

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