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Revenue Recognition - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Sep. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |  |
Deferred revenue, revenue recognized | $ 13.8 | $ 8.2 | $ 87.0 | $ 53.5 |
Revenue, remaining performance obligation, amount | $ 330.0 |  | $ 330.0 |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-07-01 |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenue, remaining performance obligation, percentage | 63.00% |  | 63.00% |  |
Revenue, remaining performance obligation, expected timing of satisfaction, period | 12 months |  | 12 months |  |
Unbilled receivables |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Unbilled contracts receivable | $ 26.5 |  | $ 26.5 |  | $ 31.9

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