INVESTMENT SECURITIES - Classified (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Investment securities available for sale
Amortized cost	$ 911,062	$ 873,023
Gross unrealized gains	528	601
Gross unrealized losses	99,305	105,390
Fair value	812,285	768,234
U.S. Treasury securities
Investment securities available for sale
Amortized cost	56,913	86,313
Gross unrealized gains	0	113
Gross unrealized losses	4,115	5,196
Fair value	52,798	81,230
U.S. government sponsored entities and U.S. agency securities
Investment securities available for sale
Amortized cost	57,925	41,775
Gross unrealized gains	27	71
Gross unrealized losses	3,816	4,337
Fair value	54,136	37,509
Mortgage-backed securities - agency
Investment securities available for sale
Amortized cost	559,278	522,028
Gross unrealized gains	475	268
Gross unrealized losses	70,262	74,146
Fair value	489,491	448,150
Mortgage-backed securities - non-agency
Investment securities available for sale
Amortized cost	46,300	24,922
Gross unrealized gains	0	0
Gross unrealized losses	3,786	4,168
Fair value	42,514	20,754
State and municipal securities
Investment securities available for sale
Amortized cost	72,732	102,719
Gross unrealized gains	26	149
Gross unrealized losses	6,502	8,232
Fair value	66,256	94,636
Collateralized loan obligations
Investment securities available for sale
Amortized cost	22,695
Gross unrealized gains	0
Gross unrealized losses	0
Fair value	22,695
Corporate securities
Investment securities available for sale
Amortized cost	95,219	95,266
Gross unrealized gains	0	0
Gross unrealized losses	10,824	9,311
Fair value	$ 84,395	$ 85,955

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).

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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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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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-Publisher FASB
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