Borrowings - Federal Home Loan Bank Advances (Details) - USD ($) |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Debt Disclosure [Abstract] | ||
| Total borrowing capacity remaining | $ 2,308,281,000 | $ 2,214,796,000 |
| Collateral securing line of credit | 3,896,210,000 | 3,817,876,000 |
| Advances | $ 0 | $ 0 |
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- References No definition available.
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- Definition Amount of advance from Federal Home Loan Bank (FHLBank). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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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