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Reclassification of Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Jun. 30, 2024
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2022
Supplemental Comprehensive Income Disclosures [Abstract]                
Unrealized holding gains on securities arising during the period $ 30,372 $ (21,389) $ 18,578 $ (25,150)        
Reclassification adjustment for gains on securities included in net income (88) 103 5,447 103        
Total unrealized gains on securities 30,284 (21,286) 24,025 (25,047)        
Unrealized holding gains on securities arising during the period 6,377 (4,138) 3,901 (5,282)        
Reclassification adjustment for gains on securities included in net income (18) 22 1,144 22        
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax 6,359 (4,116) 5,045 (5,260)        
Total other comprehensive (loss) income 38,392 (19,175) 36,291 (20,711)        
Other Comprehensive Income (Loss), Tax 8,062 (3,672) 7,621 (4,349)        
Other comprehensive income (loss) before reclassification adjustment 23,995 (17,251) 14,677 (19,868)        
Reclassification adjustment for gains on securities included in net income 70 (81) (4,303) (81)        
Total unrealized (losses) gains on securities 23,925 (17,170) 18,980 (19,787)        
Total other comprehensive (loss) income 30,330 (15,503) 28,670 (16,362)        
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Accumulated Other Comprehensive Income (Loss), Net of Tax (83,086) (154,054) (83,086) (154,054) $ (113,416) $ (111,756) $ (138,551) $ (137,692)
Other comprehensive income (loss) before reclassification adjustment 23,995 (17,251) 14,677 (19,868)        
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax 30,400 (15,584) 24,367 (16,443)        
Amounts reclassified from accumulated other comprehensive income (loss) (70) 81 4,303 81        
Total other comprehensive (loss) income 30,330 (15,503) 28,670 (16,362)        
Unrealized holding gains (losses) on securities arising during the period 30,372 (21,389) 18,578 (25,150)        
Unrealized holding gains on securities arising during the period 6,377 (4,138) 3,901 (5,282)        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax 88 (103) (5,447) (103)        
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax 18 (22) (1,144) (22)        
Reclassification adjustment for gains on securities included in net income 70 (81) (4,303) (81)        
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax 30,284 (21,286) 24,025 (25,047)        
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax 6,359 (4,116) 5,045 (5,260)        
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax 23,925 (17,170) 18,980 (19,787)        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax (1,703) (444) (2,576) (911)        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax 8,108 2,111 12,266 4,336        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax 6,405 1,667 9,690 3,425        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax (1,703) (444) (2,576) (911)        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax 8,108 2,111 12,266 4,336        
Other Comprehensive Income (Loss), before Tax 38,392 (19,175) 36,291 (20,711)        
Other Comprehensive Income (Loss), Tax 8,062 (3,672) 7,621 (4,349)        
Accumulated Net Unrealized Investment Gain (Loss) [Member]                
Supplemental Comprehensive Income Disclosures [Abstract]                
Total other comprehensive (loss) income 23,925 (17,170) 18,980 (19,787)        
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Accumulated Other Comprehensive Income (Loss), Net of Tax (73,360) (127,258) (73,360) (127,258) (97,285) (92,340) (110,088) (107,471)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax 23,995 (17,251) 14,677 (19,868)        
Amounts reclassified from accumulated other comprehensive income (loss) (70) 81 4,303 81        
Total other comprehensive (loss) income 23,925 (17,170) 18,980 (19,787)        
Accumulated Defined Benefit Plans Adjustment [Member]                
Supplemental Comprehensive Income Disclosures [Abstract]                
Total other comprehensive (loss) income 0 0 0 0        
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Accumulated Other Comprehensive Income (Loss), Net of Tax 344 268 344 268 344 344 268 268
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax 0 0 0 0        
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0 0        
Total other comprehensive (loss) income 0 0 0 0        
Derivative [Member]                
Supplemental Comprehensive Income Disclosures [Abstract]                
Total other comprehensive (loss) income 6,405 1,667 9,690 3,425        
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Accumulated Other Comprehensive Income (Loss), Net of Tax (10,070) (27,064) (10,070) (27,064) $ (16,475) $ (19,760) $ (28,731) $ (30,489)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax 6,405 1,667 9,690 3,425        
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0 0        
Total other comprehensive (loss) income 6,405 1,667 9,690 3,425        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax 6,405 1,667            
Accumulated Other Comprehensive Income (Loss), net [Member]                
Supplemental Comprehensive Income Disclosures [Abstract]                
Total other comprehensive (loss) income 30,330 (15,503) 28,670 (16,362)        
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Total other comprehensive (loss) income $ 30,330 $ (15,503) $ 28,670 $ (16,362)