SECURITIES - Investment Securities Available for Sale in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value
Less than 12 months	$ 137,597	$ 398,967
12 months or longer	468,381	137,808
Total	605,978	536,775
Unrealized Losses
Less than 12 months	9,999	5,550
12 months or longer	86,767	4,420
Total	96,766	9,970
U.S. treasury notes and bonds
Fair Value
Less than 12 months	1,011	49,084
12 months or longer	54,563	0
Total	55,574	49,084
Unrealized Losses
Less than 12 months	30	680
12 months or longer	6,195	0
Total	6,225	680
Mortgage-backed securities, residential
Fair Value
Less than 12 months	79,891	293,720
12 months or longer	355,240	122,050
Total	435,131	415,770
Unrealized Losses
Less than 12 months	7,621	4,502
12 months or longer	76,086	4,229
Total	83,707	8,731
Obligations of states and political subdivisions
Fair Value
Less than 12 months	37,847
12 months or longer	0
Total	37,847
Unrealized Losses
Less than 12 months	938
12 months or longer	0
Total	938
Corporate bonds and notes
Fair Value
Less than 12 months	4,515	4,928
12 months or longer	7,455	1,989
Total	11,970	6,917
Unrealized Losses
Less than 12 months	485	72
12 months or longer	3,295	10
Total	3,780	82
SBA loan pools
Fair Value
Less than 12 months	14,333	51,235
12 months or longer	51,123	13,769
Total	65,456	65,004
Unrealized Losses
Less than 12 months	925	296
12 months or longer	1,191	181
Total	$ 2,116	$ 477