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INVESTMENT SECURITIES (Investment Securities by Contractual Maturity - AFS) (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 1,522,812 | $ 503,421
Gross Unrealized Gains | 995 | 10,692
Gross Unrealized Losses | 111,031 | 3,400
Fair Value | $ 1,412,776 | $ 510,713
Weighted Average Yield | 2.90% | 2.05%
Mortgage-backed securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 1,210,834 | $ 489,155
Gross Unrealized Gains | 965 | 10,555
Gross Unrealized Losses | 109,298 | 3,400
Fair Value | $ 1,102,501 | $ 496,310
Weighted Average Yield | 2.79% | 2.05%
Mortgage-backed securities | FNMA and FHLMC certificates |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 837,703 | $ 184,000
Gross Unrealized Gains | 59 | 2,502
Gross Unrealized Losses | 69,646 | 3,200
Fair Value | $ 768,116 | $ 183,302
Weighted Average Yield | 2.79% | 1.65%
Mortgage-backed securities | GNMA Securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 357,497 | $ 281,061
Gross Unrealized Gains | 906 | 7,716
Gross Unrealized Losses | 38,869 | 199
Fair Value | $ 319,534 | $ 288,578
Weighted Average Yield | 2.80% | 2.32%
Mortgage-backed securities | CMOs issued by US government-sponsored agencies |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 15,634 | $ 24,094
Gross Unrealized Gains | 0 | 337
Gross Unrealized Losses | 783 | 1
Fair Value | $ 14,851 | $ 24,430
Weighted Average Yield | 1.99% | 1.96%
Mortgage-backed securities | Due from 1 to 5 years | FNMA and FHLMC certificates |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 10,155 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | 550 |
Fair Value | $ 9,605 |
Weighted Average Yield | 1.76% |
Mortgage-backed securities | Due from 1 to 5 years | GNMA Securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 12,505 | $ 10,536
Gross Unrealized Gains | 0 | 233
Gross Unrealized Losses | 632 | 1
Fair Value | $ 11,873 | $ 10,768
Weighted Average Yield | 1.66% | 1.66%
Mortgage-backed securities | Due from 1 to 5 years | CMOs issued by US government-sponsored agencies |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 14,190 | $ 1,788
Gross Unrealized Gains | 0 | 22
Gross Unrealized Losses | 755 | 0
Fair Value | $ 13,435 | $ 1,810
Weighted Average Yield | 1.78% | 1.70%
Mortgage-backed securities | Due from 5 to 10 years | FNMA and FHLMC certificates |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 59,167 | $ 90,560
Gross Unrealized Gains | 0 | 2,502
Gross Unrealized Losses | 3,764 | 0
Fair Value | $ 55,403 | $ 93,062
Weighted Average Yield | 2.00% | 1.94%
Mortgage-backed securities | Due from 5 to 10 years | GNMA Securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 24,575 | $ 26,419
Gross Unrealized Gains | 14 | 556
Gross Unrealized Losses | 1,585 | 0
Fair Value | $ 23,004 | $ 26,975
Weighted Average Yield | 2.13% | 1.80%
Mortgage-backed securities | Due from 5 to 10 years | CMOs issued by US government-sponsored agencies |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 485 | $ 20,705
Gross Unrealized Gains | 0 | 299
Gross Unrealized Losses | 10 | 0
Fair Value | $ 475 | $ 21,004
Weighted Average Yield | 2.14% | 1.81%
Mortgage-backed securities | Due after 10 years | FNMA and FHLMC certificates |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 768,381 | $ 93,440
Gross Unrealized Gains | 59 | 0
Gross Unrealized Losses | 65,332 | 3,200
Fair Value | $ 703,108 | $ 90,240
Weighted Average Yield | 2.87% | 1.37%
Mortgage-backed securities | Due after 10 years | GNMA Securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 320,417 | $ 244,106
Gross Unrealized Gains | 892 | 6,927
Gross Unrealized Losses | 36,652 | 198
Fair Value | $ 284,657 | $ 250,835
Weighted Average Yield | 2.90% | 2.40%
Mortgage-backed securities | Due after 10 years | CMOs issued by US government-sponsored agencies |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 959 | $ 1,601
Gross Unrealized Gains | 0 | 16
Gross Unrealized Losses | 18 | 1
Fair Value | $ 941 | $ 1,616
Weighted Average Yield | 5.06% | 4.24%
Investment securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 311,978 | $ 14,266
Gross Unrealized Gains | 30 | 137
Gross Unrealized Losses | 1,733 | 0
Fair Value | $ 310,275 | $ 14,403
Weighted Average Yield | 3.35% | 1.95%
Investment securities | Other debt securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost |  | $ 2,347
Gross Unrealized Gains |  | 48
Gross Unrealized Losses |  | 0
Fair Value |  | $ 2,395
Weighted Average Yield |  | 4.39%
Investment securities | Due less than 1 year | US Treasury securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 310,862 | $ 10,737
Gross Unrealized Gains | 0 | 88
Gross Unrealized Losses | 1,729 | 0
Fair Value | $ 309,133 | $ 10,825
Weighted Average Yield | 3.34% | 1.48%
Investment securities | Due less than 1 year | Obligations of US government-sponsored agencies |  |
Schedule of Investments [Line Items] |  |
Amortized Cost |  | $ 1,182
Gross Unrealized Gains |  | 1
Gross Unrealized Losses |  | 0
Fair Value |  | $ 1,183
Weighted Average Yield |  | 1.40%
Investment securities | Due less than 1 year | Other debt securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost |  | $ 500
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | 0
Fair Value |  | $ 500
Weighted Average Yield |  | 0.57%
Investment securities | Due from 1 to 5 years | Other debt securities |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 1,116 | $ 1,847
Gross Unrealized Gains | 30 | 48
Gross Unrealized Losses | 4 | 0
Fair Value | $ 1,142 | $ 1,895
Weighted Average Yield | 4.45% | 5.43%

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