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Accumulated Other Comprehensive Income (Loss) (Changes in AOCI by component) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]      
Accumulated Other Comprehensive Income (Loss), Net of Tax $ (37,194) $ 1,859 $ 7,698
OCI before reclassifications 14,117 (49,253) (7,363)
Amounts reclassified from AOCI 28 59 (31)
Net unrealized gains (losses) 14,145 (49,194) (7,394)
Tax effect (2,847) 10,141 1,555
Unrealized gains (losses), net of tax 11,298 (39,053) (5,839)
Accumulated Other Comprehensive Income (Loss), Net of Tax (25,896) (37,194) 1,859
Unrealized Holding Gains (Losses) on AFS Securities [Member]      
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]      
Accumulated Other Comprehensive Income (Loss), Net of Tax (35,828) 3,873 10,485
OCI before reclassifications 13,365 (50,015) (8,371)
Amounts reclassified from AOCI (67) 0 0
Net unrealized gains (losses) 13,298 (50,015) (8,371)
Tax effect (2,669) 10,314 1,759
Unrealized gains (losses), net of tax 10,629 (39,701) (6,612)
Accumulated Other Comprehensive Income (Loss), Net of Tax (25,199) (35,828) 3,873
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]      
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]      
Accumulated Other Comprehensive Income (Loss), Net of Tax 0 0 (42)
OCI before reclassifications 0 0 53
Amounts reclassified from AOCI 0 0 0
Net unrealized gains (losses) 0 0 53
Tax effect 0 0 (11)
Unrealized gains (losses), net of tax 0 0 42
Accumulated Other Comprehensive Income (Loss), Net of Tax 0 0 0
Defined Benefit Pension Plan [Member]      
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]      
Accumulated Other Comprehensive Income (Loss), Net of Tax (1,366) (2,014) (2,745)
OCI before reclassifications 752 762 955
Amounts reclassified from AOCI 95 59 (31)
Net unrealized gains (losses) 847 821 924
Tax effect (178) (173) (193)
Unrealized gains (losses), net of tax 669 648 731
Accumulated Other Comprehensive Income (Loss), Net of Tax $ (697) $ (1,366) $ (2,014)