Borrowings - Other Short-Term Borrowings - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Sep. 30, 2025 |
|
| Debt Disclosure [Abstract] | |||||
| Other short-term borrowings | $ 134,315 | $ 134,315 | $ 74,178 | ||
| Other short-term borrowings, fair value of loans | 222,110 | 222,110 | $ 109,743 | ||
| Short-term debt, average outstanding amount | $ 5,532,317 | $ 3,109,062 | $ 5,506,949 | $ 2,321,894 | |
| Average stated interest rate | 5.90% | 6.80% | 6.00% | 7.10% | |
| X | ||||||||||
- Definition Debt, Annualized Weighted Average Interest Rate No definition available.
|
| X | ||||||||||
- Definition Other Short-Term Borrowings, Fair Value Of Loans No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|