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Acquisitions Details (Details) - USD ($) $ in Thousands |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Aug. 18, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 22, 2021
Business Acquisition [Line Items] |  |  |  |  |
Cash paid at closing | $ 148,487 |  |  |  |
Operating lease right-of-use assets |  | $ 8,430 | $ 10,207 |  |
Operating lease liabilities |  | 8,671 | 11,228 |  |
Acquisition costs |  | 1,900 |  |  |
Goodwill |  | 392,872 | 342,774 | $ 341,593 |
Maximum borrowing capacity |  |  |  |  | $ 215,000
Total reported lease liability |  | $ 12,032 | $ 14,201 |  |
Jolt |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Weighted average useful life identifiable intangibles | 15 years 9 months 18 days |  |  |  |
Goodwill | $ 50,209 |  |  |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount | $ 11,000 |  |  |  |
Maximum |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Useful life identifiable intangibles |  | 20 years 6 months |  |  |
Customer Relationships | Jolt |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Weighted average useful life identifiable intangibles | 17 years |  |  |  |
Purchased and Core Technology | Jolt |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Weighted average useful life identifiable intangibles | 11 years |  |  |  |
Trademarks | Jolt |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Weighted average useful life identifiable intangibles | 7 years 6 months |  |  |  |

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