SECURITIES - Available-for-sale (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Securities available-for-sale:
Amortized Cost	$ 995,709	$ 1,071,858
Gross Unrealized Gains	56	59
Gross Unrealized Losses	(109,525)	(121,330)
Fair Value	886,240	950,587
Agency notes
Securities available-for-sale:
Amortized Cost	10,000
Gross Unrealized Losses	(629)
Fair Value	9,371
Treasury securities
Securities available-for-sale:
Amortized Cost	245,877	246,899
Gross Unrealized Losses	(11,687)	(19,643)
Fair Value	234,190	227,256
Corporate securities
Securities available-for-sale:
Amortized Cost	174,978	183,791
Gross Unrealized Gains		57
Gross Unrealized Losses	(23,808)	(17,075)
Fair Value	151,170	166,773
Pass-through MBS issued by GSEs
Securities available-for-sale:
Amortized Cost	230,253	272,774
Gross Unrealized Gains	10
Gross Unrealized Losses	(24,978)	(31,534)
Fair Value	205,285	241,240
Agency CMOs
Securities available-for-sale:
Amortized Cost	305,860	331,394
Gross Unrealized Gains	46	2
Gross Unrealized Losses	(46,491)	(50,057)
Fair Value	259,415	281,339
State and municipal obligations.
Securities available-for-sale:
Amortized Cost	28,741	37,000
Gross Unrealized Losses	(1,932)	(3,021)
Fair Value	$ 26,809	$ 33,979

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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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and 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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