SECURITIES - Available-for-sale (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Securities available-for-sale:
Amortized Cost	$ 921,572	$ 995,709
Gross Unrealized Gains	382	56
Gross Unrealized Losses	(102,732)	(109,525)
Fair Value	819,222	886,240
Agency notes
Securities available-for-sale:
Amortized Cost	10,000	10,000
Gross Unrealized Losses	(568)	(629)
Fair Value	9,432	9,371
Treasury securities
Securities available-for-sale:
Amortized Cost	206,420	245,877
Gross Unrealized Losses	(8,508)	(11,687)
Fair Value	197,912	234,190
Corporate securities
Securities available-for-sale:
Amortized Cost	173,932	174,978
Gross Unrealized Gains	348
Gross Unrealized Losses	(18,870)	(23,808)
Fair Value	155,410	151,170
Pass-through MBS issued by GSEs
Securities available-for-sale:
Amortized Cost	212,655	230,253
Gross Unrealized Gains	16	10
Gross Unrealized Losses	(25,627)	(24,978)
Fair Value	187,044	205,285
Agency CMOs
Securities available-for-sale:
Amortized Cost	290,992	305,860
Gross Unrealized Gains	18	46
Gross Unrealized Losses	(47,164)	(46,491)
Fair Value	243,846	259,415
Debt Security, Corporate, US [Member]
Securities available-for-sale:
Amortized Cost	27,573	28,741
Gross Unrealized Losses	(1,995)	(1,932)
Fair Value	$ 25,578	$ 26,809

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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