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SECURITIES - Investment Securities Available for Sale in Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Fair Value    
Less than 12 months $ 1,921 $ 29,297
12 months or longer 545,414 546,649
Total 547,335 575,946
Unrealized Losses    
Less than 12 months 79 2,762
12 months or longer 70,378 82,418
Total 70,457 85,180
U.S. Treasury notes and bonds    
Fair Value    
Less than 12 months 0 0
12 months or longer 57,024 55,332
Total 57,024 55,332
Unrealized Losses    
Less than 12 months 0 0
12 months or longer 2,839 4,480
Total 2,839 4,480
Mortgage-backed securities, residential    
Fair Value    
Less than 12 months 0 0
12 months or longer 383,865 402,986
Total 383,865 402,986
Unrealized Losses    
Less than 12 months 0 0
12 months or longer 60,595 72,422
Total 60,595 72,422
Obligations of states and political subdivisions    
Fair Value    
Less than 12 months 0 17,891
12 months or longer 36,474 20,686
Total 36,474 38,577
Unrealized Losses    
Less than 12 months 0 241
12 months or longer 759 576
Total 759 817
Corporate bonds and notes    
Fair Value    
Less than 12 months 1,921 7,492
12 months or longer 19,544 13,177
Total 21,465 20,669
Unrealized Losses    
Less than 12 months 79 2,508
12 months or longer 4,206 2,573
Total 4,285 5,081
SBA loan pools    
Fair Value    
Less than 12 months 0 3,914
12 months or longer 48,507 54,468
Total 48,507 58,382
Unrealized Losses    
Less than 12 months 0 13
12 months or longer 1,979 2,367
Total $ 1,979 $ 2,380