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v3.25.3

Nature of Business and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Depreciation and amortization, property and equipment | $ 10.7 | $ 9.4 | $ 10.1
Foreign exchange gains (losses) | 1.1 | (0.6) | (2.6)
Advertising and promotion costs | $ 29.7 | $ 12.3 | $ 9.8
Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock option awards vesting period | 3 years |  |
Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock option awards vesting period | 4 years |  |

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