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SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND EQUITY SECURITIES - Schedule of Amortized Cost and Estimated Fair Value of Available for Sale (AFS) and Held to Maturity (HTM) Securities, Segregated by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Available for sale, Amortized Cost
Within 1 year	$ 7,271
Over 1 year to 5 years	19,220
Over 5 years to 10 years	48,936
Over 10 years	34,871
Total bonds and obligations	110,298
Mortgage-backed securities	671,648
Amortized  Cost	781,946	$ 1,211,212
Available for sale, Fair Value
Within 1 year	7,281
Over 1 year to 5 years	18,903
Over 5 years to 10 years	45,939
Over 10 years	33,688
Total bonds and obligations	105,811
Mortgage-backed securities	555,929
Fair Value	661,740	1,022,285
Held to maturity, Amortized Cost
Within 1 year	646
Over 1 year to 5 years	1,910
Over 5 years to 10 years	48,372
Over 10 years	187,300
Total bonds and obligations	238,228
Mortgage-backed securities	274,049
Amortized  Cost	512,277	543,351
Held to maturity, Fair Value
Within 1 year	646
Over 1 year to 5 years	1,904
Over 5 years to 10 years	48,226
Over 10 years	170,750
Total bonds and obligations	221,526
Mortgage-backed securities	229,668
Fair Value	$ 451,194	$ 476,228

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