Debt - Schedule of Fixed Rate SBA Debentures (Details) - USD ($) $ in Millions	Sep. 30, 2025	Sep. 30, 2024
SBA Debentures
Debt Instrument [Line Items]
Principal Balance	$ 0	$ 0

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.

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+ Details

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

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