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v3.25.3

Goodwill and Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Goodwill impairment | $ 0.0 | $ (16.3) | $ 0.0
Amortization | 7.2 | 27.1 | 28.1
Net goodwill | 89.2 | 80.7 | 93.7
Impairment of indefinite-lived intangible assets | $ 0.0 |  |
Capitalized internal-use software: |  |  |
Finite-Lived Intangible Asset, Useful Life | 6 years |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 4 years 4 months 24 days |  |
Amortization | $ 2.2 | 2.6 | 2.9
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months | 2.3 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Two | 1.8 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Three | 1.5 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Four | 1.1 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Five | $ 0.7 |  |
Customer relationships and other |  |  |
Finite-Lived Intangible Asset, Useful Life | 6 years 8 months 12 days |  |
Technology |  |  |
Finite-Lived Intangible Asset, Useful Life | 6 years 2 months 12 days |  |
Business combination-related intangible assets, net |  |  |
Amortization | $ 5.0 | $ 24.9 | $ 25.2
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months | 4.9 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Two | 4.7 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Three | 4.4 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Four | 3.8 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Five | $ 3.6 |  |

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