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SECURITIES - Available-for-sale Securities With Unrealized Loss Positions (Details) - USD ($) $ in Thousands	Mar. 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	$ 420,649	$ 230,138
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(24,357)	(2,934)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	29,786	8,682
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(3,219)	(283)
Available-for-sale securities with unrealized loss positions, fair value	450,435	238,820
Available-for-sale securities, with unrealized loss positions, unrealized losses	(27,576)	(3,217)
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	36,494	18,886
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(1,658)	(198)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, fair value	36,494	18,886
Available-for-sale securities, with unrealized loss positions, unrealized losses	(1,658)	(198)
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	4,812	9,735
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(61)	(264)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	11,363	4,856
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(1,136)	(144)
Available-for-sale securities with unrealized loss positions, fair value	16,175	14,591
Available-for-sale securities, with unrealized loss positions, unrealized losses	(1,197)	(408)
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	21,043	12,969
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(899)	(31)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, fair value	21,043	12,969
Available-for-sale securities, with unrealized loss positions, unrealized losses	(899)	(31)
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	104,057	17,852
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(6,341)	(141)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	1,719	549
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(129)	(7)
Available-for-sale securities with unrealized loss positions, fair value	105,776	18,401
Available-for-sale securities, with unrealized loss positions, unrealized losses	(6,470)	(148)
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	46,674	31,261
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(3,692)	(517)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	5,814	3,277
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(704)	(132)
Available-for-sale securities with unrealized loss positions, fair value	52,488	34,538
Available-for-sale securities, with unrealized loss positions, unrealized losses	(4,396)	(649)
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	98,253	71,451
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(5,374)	(572)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	3,737	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(287)	0
Available-for-sale securities with unrealized loss positions, fair value	101,990	71,451
Available-for-sale securities, with unrealized loss positions, unrealized losses	(5,661)	(572)
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	41,916	15,117
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(1,764)	(205)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	0	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	0	0
Available-for-sale securities with unrealized loss positions, fair value	41,916	15,117
Available-for-sale securities, with unrealized loss positions, unrealized losses	(1,764)	(205)
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	67,400	52,867
Available-for-sale securities with unrealized loss positions, less than 12 months, unrealized losses	(4,568)	(1,006)
Available-for-sale securities with unrealized loss positions, 12 months or more, fair value	7,153	0
Available-for-sale securities with unrealized loss positions, 12 months or more, unrealized losses	(963)	0
Available-for-sale securities with unrealized loss positions, fair value	74,553	52,867
Available-for-sale securities, with unrealized loss positions, unrealized losses	$ (5,531)	$ (1,006)

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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