Borrowings - Additional Information (Detail) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Debt Disclosure [Abstract] | |||
| Pledged loans, carrying value | $ 2,400,000,000 | ||
| Total borrowing capacity available from the collateral | 1,760,000,000 | ||
| Remaining available borrowing capacity | 1,460,000,000 | ||
| Carrying value of loans pledged | 528,100,000 | ||
| Available for use through the Federal Reserve Bank of San Francisco discount window | 424,500,000 | $ 27,600,000 | |
| Pledged loans, carrying values | 29,400,000 | ||
| Borrowings | 0 | 0 | |
| Interest expense on FHLB | $ 3,700,000 | $ 6,700,000 | $ 6,900,000 |
| FHLB, advances, weighted-average interest rate during the year | 4.52% | 4.37% | 3.48% |
| X | ||||||||||
- Definition Available Borrowing From Federal Reserve Discount Window No definition available.
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- Definition Borrowing. No definition available.
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- Definition Borrowing capacity available based on pledged collateral. No definition available.
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- Definition Borrowing capacity based on pledged collateral. No definition available.
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- Definition Carrying value of loans pledged. No definition available.
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- Definition Carrying Value Of Loans Pledged As Collateral For FHLB Advances No definition available.
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- Definition Amount of interest expense on loans received from Federal Home Loan Bank (FHLB). No definition available.
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- References No definition available.
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- Definition The calculated weighted average interest rate for Federal Home Loan Bank advances for the period ended as of the Balance Sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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