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Nature of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Sep. 30, 2024
Accounting Policies [Abstract] |
Estimated Useful Life of Property and Equipment | Depreciation and amortization charges are calculated using the straight-line method over the following estimated useful lives:
| Estimated Useful Life
Data processing equipment and purchased software | 3 years | to | 6 years
Internal-use software | 4 years
Office furniture and equipment | 3 years | to | 7 years
Leasehold improvements | Shorter of estimated useful life or lease term

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