LOANS & ALLOWANCE FOR CREDIT LOSSES - NARRATIVE (Details) |
3 Months Ended | ||
|---|---|---|---|
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Sep. 30, 2026
USD ($)
segment
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Sep. 30, 2025
USD ($)
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Jun. 30, 2026
USD ($)
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| Receivables [Abstract] | |||
| Number of loan portfolio segments | segment | 5 | ||
| Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Other assets | Other assets | |
| Accrued interest receivable on loans held for investments | $ 135,500,000 | $ 135,600,000 | |
| Advances, collateral pledged | 3,635,800,000 | 3,761,600,000 | |
| FRBSF and FRB, loans pledged | 11,553,300,000 | 11,115,100,000 | |
| Nonaccrual loans | 0 | 0 | |
| Interest income recognized on nonaccrual loans | 0 | $ 0 | |
| Loans past due ninety days or more and still accruing | 0 | 0 | |
| Mortgage loans in process of foreclosure, amount | $ 45,000,000.0 | $ 47,100,000 | |
| X | ||||||||||
- Definition Federal Reserve Bank, Advances, Collateral Pledged No definition available.
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- Definition Financing Receivable, Interest Income, Performing Loans Temporarily Modified As TDRs No definition available.
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- Definition Number Of Loan Portfolio Segments No definition available.
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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after allowance for credit loss, of accrued interest on financing receivable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Indicates line item in statement of financial position that includes accrued interest, after allowance for credit loss, on financing receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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