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SECURITIES - Investment Securities Available for Sale in Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Fair Value    
Less than 12 months $ 439,529 $ 398,967
12 months or longer 224,609 137,808
Total 664,138 536,775
Unrealized Losses    
Less than 12 months 24,590 5,550
12 months or longer 21,682 4,420
Total 46,272 9,970
U.S. Treasury notes and bonds    
Fair Value    
Less than 12 months 57,222 49,084
12 months or longer 0 0
Total 57,222 49,084
Unrealized Losses    
Less than 12 months 3,675 680
12 months or longer 0 0
Total 3,675 680
Mortgage-backed securities, residential    
Fair Value    
Less than 12 months 315,115 293,720
12 months or longer 197,549 122,050
Total 512,664 415,770
Unrealized Losses    
Less than 12 months 19,657 4,502
12 months or longer 21,428 4,229
Total 41,085 8,731
Obligations of states and political subdivisions    
Fair Value    
Less than 12 months 11,259  
12 months or longer 0  
Total 11,259  
Unrealized Losses    
Less than 12 months 91  
12 months or longer 0  
Total 91  
Corporate bonds and notes    
Fair Value    
Less than 12 months 11,268 4,928
12 months or longer 1,989 1,989
Total 13,257 6,917
Unrealized Losses    
Less than 12 months 481 72
12 months or longer 11 10
Total 492 82
SBA loan pools    
Fair Value    
Less than 12 months 44,665 51,235
12 months or longer 25,071 13,769
Total 69,736 65,004
Unrealized Losses    
Less than 12 months 686 296
12 months or longer 243 181
Total $ 929 $ 477