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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.