SECURITIES - Available-for-sale Securities With Unrealized Loss Positions (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	$ 297,304,000	$ 230,138,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(28,730,000)	(2,934,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	184,052,000	8,682,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(35,352,000)	(283,000)
Available-for-sale securities with unrealized loss positions, fair value	481,356,000	238,820,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(64,082,000)	(3,217,000)
Obligations of the U.S. Treasury
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	20,192,000	18,886,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(1,939,000)	(198,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	11,644,000	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(1,391,000)	0
Available-for-sale securities with unrealized loss positions, fair value	31,836,000	18,886,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(3,330,000)	(198,000)
Obligations of U.S. Government agencies
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	8,509,000	9,735,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(430,000)	(264,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	12,921,000	4,856,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(2,078,000)	(144,000)
Available-for-sale securities with unrealized loss positions, fair value	21,430,000	14,591,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(2,508,000)	(408,000)
Bank holding company debt securities
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	14,248,000	12,969,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(1,697,000)	(31,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	11,138,000	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(1,862,000)	0
Available-for-sale securities with unrealized loss positions, fair value	25,386,000	12,969,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(3,559,000)	(31,000)
Obligations Of States And Political Subdivisions Tax Exempt
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	106,204,000	17,852,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(11,023,000)	(141,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	15,153,000	549,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(2,822,000)	(7,000)
Available-for-sale securities with unrealized loss positions, fair value	121,357,000	18,401,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(13,845,000)	(148,000)
Obligations Of States And Political Subdivisions Taxable
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	28,901,000	31,261,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(4,739,000)	(517,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	27,761,000	3,277,000
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(6,937,000)	(132,000)
Available-for-sale securities with unrealized loss positions, fair value	56,662,000	34,538,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(11,676,000)	(649,000)
Residential Passthrough Securities
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	45,410,000	71,451,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(4,226,000)	(572,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	54,531,000	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(8,615,000)	0
Available-for-sale securities with unrealized loss positions, fair value	99,941,000	71,451,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(12,841,000)	(572,000)
Residential Collateralized Mortgage Obligations
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	28,670,000	15,117,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(2,042,000)	(205,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	11,626,000	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(2,530,000)	0
Available-for-sale securities with unrealized loss positions, fair value	40,296,000	15,117,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(4,572,000)	(205,000)
Private label commercial mortgage-backed securities
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	4,762,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(49,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0
Available-for-sale securities with unrealized loss positions, fair value	4,762,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	(49,000)
Commercial Mortgage Backed Securities
Available-for-sale Securities With Unrealized Loss Positions
Available-for-sale securities with unrealized loss positions, less than 12 months, fair value	40,408,000	52,867,000
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(2,585,000)	(1,006,000)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	39,278,000	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(9,117,000)	0
Available-for-sale securities with unrealized loss positions, fair value	79,686,000	52,867,000
Available-for-sale securities, with unrealized loss positions, unrealized losses	$ (11,702,000)	$ (1,006,000)