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Capital Ratios and Shareholders' Equity - Components of Unrealized Holdings Gains on AFS Securities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Unrealized gains (losses) during the period |  | $ 16,589 | $ 5,339 | $ 13,365
Reclassification adjustment for net realized (gains) losses included in net income |  | 0 | 0 | (67)
Tax effect | [1] | (3,616) | (1,098) | (2,669)
Unrealized gains (losses) on AFS securities, net of tax |  | 12,973 | 4,241 | 10,629
Auction rate money market preferred |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Unrealized gains (losses) during the period |  | (631) | 113 | 589
Tax effect |  | 0 | 0 | 0
Unrealized gains (losses) on AFS securities, net of tax |  | (631) | 113 | 589
All Other AFS Securities |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Unrealized gains (losses) during the period |  | 17,220 | 5,226 | 12,776
Tax effect |  | (3,616) | (1,098) | (2,669)
Unrealized gains (losses) on AFS securities, net of tax |  | 13,604 | 4,128 | 10,040
Unrealized Gains (Losses) on AFS Securities |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassification adjustment for net realized (gains) losses included in net income |  | 0 | 0 | (67)
Net unrealized gains (losses) |  | 16,589 | 5,339 | 13,298
Unrealized Gains (Losses) on AFS Securities | Auction rate money market preferred |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassification adjustment for net realized (gains) losses included in net income |  | 0 | 0 | 0
Net unrealized gains (losses) |  | (631) | 113 | 589
Unrealized Gains (Losses) on AFS Securities | All Other AFS Securities |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassification adjustment for net realized (gains) losses included in net income |  | 0 | 0 | (67)
Net unrealized gains (losses) |  | $ 17,220 | $ 5,226 | $ 12,709
[1] | See “Note 9 – Capital Ratios and Shareholders’ Equity” in the accompanying notes to consolidated financial statements for tax effect reconciliation.

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