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v3.25.3

Significant Accounting Policies (Details) | 12 Months Ended
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Sep. 30, 2025
Accounting Policies [Abstract] |
Market-related valuation calculation period (in years) | 5 years
Net unrecognized gain (loss) threshold subject to amortization (in percent) | 10.00%
Minimum | Building |
Property and equipment |
Estimated useful live (in years) | 10 years
Minimum | Furniture and fixtures |
Property and equipment |
Estimated useful live (in years) | 3 years
Minimum | Computer systems and equipment |
Property and equipment |
Estimated useful live (in years) | 3 years
Maximum | Building |
Property and equipment |
Estimated useful live (in years) | 45 years
Maximum | Furniture and fixtures |
Property and equipment |
Estimated useful live (in years) | 10 years
Maximum | Computer systems and equipment |
Property and equipment |
Estimated useful live (in years) | 12 years

X
- Definition Represents the percentage of the greater of the projected benefit obligation or the market related value of plan assets that has to be exceeded for amortization of cumulative net unrecognized gains or losses. + References No definition available. + Details
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- Definition Represents the amortization period of the difference between the actual return (including capital, dividends, and interest) and the expected return in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A + Details
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