INVESTMENT SECURITIES - Continuous Unrealized Loss on Position (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Available-for-sale Securities
Less than 12 months, gross unrealized losses	$ (95,493)	$ (2,503)
Less than 12 months, fair value	1,187,577	181,901
12 months or more, gross unrealized losses	(35,604)	(822)
12 months or more, fair value	146,230	15,712
Total gross unrealized losses	(131,097)	(3,325)
Total fair value	1,333,807	197,613
Residential Mortgage Backed Securities
Available-for-sale Securities
Less than 12 months, gross unrealized losses	(8,845)	(38)
Less than 12 months, fair value	191,398	5,324
12 months or more, gross unrealized losses	(1,338)	(300)
12 months or more, fair value	5,763	2,406
Total gross unrealized losses	(10,183)	(338)
Total fair value	197,161	7,730
Commercial Mortgage Backed Securities
Available-for-sale Securities
Less than 12 months, gross unrealized losses	(5,729)	(235)
Less than 12 months, fair value	41,416	18,127
12 months or more, gross unrealized losses	(3,633)	0
12 months or more, fair value	14,619	0
Total gross unrealized losses	(9,362)	(235)
Total fair value	56,035	18,127
Collateralized Residential Mortgage Obligations
Available-for-sale Securities
Less than 12 months, gross unrealized losses	(27,789)	(1,007)
Less than 12 months, fair value	498,333	53,068
12 months or more, gross unrealized losses	(11,633)	(314)
12 months or more, fair value	45,689	7,116
Total gross unrealized losses	(39,422)	(1,321)
Total fair value	544,022	60,184
Collateralized Commercial Mortgage Obligations
Available-for-sale Securities
Less than 12 months, gross unrealized losses	(4,787)	(135)
Less than 12 months, fair value	56,671	14,806
12 months or more, gross unrealized losses	(2,603)	(198)
12 months or more, fair value	13,848	5,132
Total gross unrealized losses	(7,390)	(333)
Total fair value	70,519	19,938
Municipal bonds
Available-for-sale Securities
Less than 12 months, gross unrealized losses	(44,513)	(914)
Less than 12 months, fair value	350,918	64,237
12 months or more, gross unrealized losses	(13,326)	(10)
12 months or more, fair value	46,377	1,058
Total gross unrealized losses	(57,839)	(924)
Total fair value	397,295	65,295
Held-to-Maturity Securities
Less than 12 months, Gross unrealized losses	(56)
Less than 12 months, Fair value	2,385
12 months or more, Gross unrealized losses	0
12 months or more, Fair value	0
HTM securities in unrealized loss position, gross unrealized losses	(56)
HTM securities in unrealized loss position, gross unrealized losses, fair value	2,385
Corporate debt securities
Available-for-sale Securities
Less than 12 months, gross unrealized losses	(3,801)	(1)
Less than 12 months, fair value	32,871	3,164
12 months or more, gross unrealized losses	0	0
12 months or more, fair value	0	0
Total gross unrealized losses	(3,801)	(1)
Total fair value	32,871	3,164
U.S. Treasury securities
Available-for-sale Securities
Less than 12 months, gross unrealized losses	0	(173)
Less than 12 months, fair value	0	23,175
12 months or more, gross unrealized losses	(3,071)	0
12 months or more, fair value	19,934	0
Total gross unrealized losses	(3,071)	(173)
Total fair value	19,934	$ 23,175
Agency debentures
Available-for-sale Securities
Less than 12 months, gross unrealized losses	(29)
Less than 12 months, fair value	15,970
12 months or more, gross unrealized losses	0
12 months or more, fair value	0
Total gross unrealized losses	(29)
Total fair value	$ 15,970

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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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