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Accumulated Other Comprehensive Loss ("AOCL") - Reclassification Out of Each Components (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Reclassifications out of AOCIL [Abstract]        
Interest income $ 68,334 $ 62,432 $ 199,798 $ 174,316
Income tax expense 3,481 4,109 11,949 10,405
Reclassifications, net of tax 13,810 17,543 48,329 45,324
Amount Reclassified From AOCL        
Reclassifications out of AOCIL [Abstract]        
Reclassifications, net of tax (422) (57) (1,121) (352)
Unrealized Losses on Securities AFS | Amount Reclassified From AOCL        
Reclassifications out of AOCIL [Abstract]        
Equity securities at fair value (145) 0 (414) (222)
Income tax expense (31) 0 (87) (47)
Reclassifications, net of tax (114) 0 (327) (175)
Unrealized Gains (Losses) on Derivative Instruments | Amount Reclassified From AOCL        
Reclassifications out of AOCIL [Abstract]        
Interest income 390 72 1,005 224
Income tax expense 82 15 211 47
Reclassifications, net of tax $ 308 $ 57 $ 794 $ 177