INVESTMENT SECURITIES - Classified (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Investment securities available for sale
Total available for sale securities	$ 1,287,760	$ 1,012,592
Gross unrealized gains	7,696	3,217
Gross unrealized losses	(83,228)	(99,914)
Basis Adjustments	(138)
Fair value	1,212,090	915,895
U.S. Treasury securities
Investment securities available for sale
Total available for sale securities		1,097
Gross unrealized gains		0
Gross unrealized losses		0
Fair value		1,097
U.S. government sponsored entities and U.S. agency securities
Investment securities available for sale
Total available for sale securities	44,046	74,161
Gross unrealized gains	150	176
Gross unrealized losses	(1,372)	(1,765)
Fair value	42,824	72,572
Mortgage-backed securities - agency
Investment securities available for sale
Total available for sale securities	897,052	650,119
Gross unrealized gains	5,103	2,325
Gross unrealized losses	(67,253)	(77,944)
Basis Adjustments	(138)
Fair value	834,764	574,500
Mortgage-backed securities - non-agency
Investment securities available for sale
Total available for sale securities	87,241	87,019
Gross unrealized gains	1,447	414
Gross unrealized losses	(2,762)	(3,904)
Fair value	85,926	83,529
State and municipal securities
Investment securities available for sale
Total available for sale securities	74,816	62,952
Gross unrealized gains	592	258
Gross unrealized losses	(4,937)	(5,750)
Fair value	70,471	57,460
Corporate securities
Investment securities available for sale
Total available for sale securities	94,424	109,598
Gross unrealized gains	306	41
Gross unrealized losses	(6,768)	(10,467)
Fair value	87,962	99,172
Other securities
Investment securities available for sale
Total available for sale securities	90,181	27,646
Gross unrealized gains	98	3
Gross unrealized losses	(136)	(84)
Fair value	90,143	27,565
Other Securities, Studen Loan Asset Backed
Investment securities available for sale
Fair value	54,000
Other Securities, Structured Financial Products
Investment securities available for sale
Fair value	$ 36,100	$ 27,600

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Topic 326
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