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Supplemental Comprehensive Income Disclosures Supplemental Comprehensive Income Disclosures (Details 2) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Accumulated Other Comprehensive Income [Line Items]      
Balance at beginning of period $ (137,692) $ (8,768) $ 17,233
Other comprehensive income before reclassification adjustment 25,779 (129,095) (26,265)
Amounts reclassified from accumulated other comprehensive income (loss) 81 (2) (13)
Net gain   113 217
Net other comprehensive income during the period 25,936 (128,924) (26,001)
Balance at end of period (111,756) (137,692) (8,768)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax 61 60 60
Net gain 15 113 217
Securities Available for Sale      
Accumulated Other Comprehensive Income [Line Items]      
Balance at beginning of period (107,471) (3,317) 20,310
Other comprehensive income before reclassification adjustment 15,050 (104,152) (23,614)
Amounts reclassified from accumulated other comprehensive income (loss) 81 (2) (13)
Net other comprehensive income during the period 15,131 (104,154) (23,627)
Balance at end of period (92,340) (107,471) (3,317)
AOCI, Derivative Qualifying as Hedge, Excluded Component, Parent [Member]      
Accumulated Other Comprehensive Income [Line Items]      
Balance at beginning of period (30,489) (5,546) (2,895)
Other comprehensive income before reclassification adjustment 10,729 (24,943) (2,651)
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0
Net other comprehensive income during the period 10,729 (24,943) (2,651)
Balance at end of period (19,760) (30,489) (5,546)
Post-Retirement Obligation      
Accumulated Other Comprehensive Income [Line Items]      
Balance at beginning of period 268 95 (182)
Net gain   113 217
Net other comprehensive income during the period 76 173 277
Balance at end of period 344 268 95
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax 61 60 60
Net gain 15    
Accumulated Other Comprehensive Income (Loss), net [Member]      
Accumulated Other Comprehensive Income [Line Items]      
Net other comprehensive income during the period $ 25,936 $ (128,924) $ (26,001)