Summary of Significant Accounting Policies - Schedule of Held to Maturity Securities (Details) - USD ($) $ in Thousands |
Jul. 31, 2026 |
Jul. 31, 2025 |
|---|---|---|
| Accounting Policies [Abstract] | ||
| Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Total | $ 2,581,901 | $ 2,008,539 |
| Gross Unrealized Gains | 14,985 | 15,575 |
| Fair Value | $ 2,596,886 | $ 2,024,114 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
|
| X | ||||||||||
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|