SECURITIES - Investment Securities Available for Sale in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value
Less than 12 months	$ 414,308	$ 398,967
12 months or longer	242,414	137,808
Total	656,722	536,775
Unrealized Losses
Less than 12 months	33,619	5,550
12 months or longer	36,248	4,420
Total	69,867	9,970
U.S. Treasury notes and bonds
Fair Value
Less than 12 months	56,304	49,084
12 months or longer	0	0
Total	56,304	49,084
Unrealized Losses
Less than 12 months	4,684	680
12 months or longer	0	0
Total	4,684	680
Mortgage-backed securities, residential
Fair Value
Less than 12 months	269,606	293,720
12 months or longer	211,168	122,050
Total	480,774	415,770
Unrealized Losses
Less than 12 months	26,223	4,502
12 months or longer	36,041	4,229
Total	62,264	8,731
Obligations of states and political subdivisions
Fair Value
Less than 12 months	35,130
12 months or longer	0
Total	35,130
Unrealized Losses
Less than 12 months	992
12 months or longer	0
Total	992
Corporate bonds and notes
Fair Value
Less than 12 months	12,944	4,928
12 months or longer	1,989	1,989
Total	14,933	6,917
Unrealized Losses
Less than 12 months	806	72
12 months or longer	11	10
Total	817	82
SBA loan pools
Fair Value
Less than 12 months	40,324	51,235
12 months or longer	29,257	13,769
Total	69,581	65,004
Unrealized Losses
Less than 12 months	914	296
12 months or longer	196	181
Total	$ 1,110	$ 477