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SECURITIES (Securities Debt Maturities) (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Investments, Debt and Equity Securities [Abstract] |  |
Trading Securities, Amortized Cost, Maturing in one year or less | $ 0 |
Trading Securities, Amortized Cost, Maturing after one year through five years | 0 |
Trading Securities, Amortized Cost, Maturing after five years through ten years | 0 |
Debt Securities, Trading, Debt Maturities, After Year Ten, Amortized Cost Basis | 27,203 |
Debt Securities, Trading, Amortized Cost | 27,203 | $ 27,203
Trading Securities, Fair Value, Maturing in one year or less | 0 |
Trading Securities, Fair Value, Maturing after one year through five years | 0 |
Trading Securities, Fair Value, Maturing after five years through ten years | 0 |
Debt Securities, Trading, Debt Maturities, After Year Ten, Fair Value | 28,383 |
Trading Securities, Fair Value | 28,383 | 26,981
Available-for-sale Securities, Amortized Cost, Maturing in one year or less | 5,056 |
Available-for-sale Securities, Amortized Cost, Maturing after one year through five years | 264,362 |
Available-for-sale Securities, Amortized Cost, Maturing after five years through ten years | 712,311 |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 | 2,451,812 |
Debt Securities, Available-for-sale, Amortized Cost, Total | 3,433,541 | 3,653,160
Available-for-sale Securities, Fair Value, Maturing in one year or less | 5,025 |
Available-for-sale Securities, Fair Value, Maturing after one year through five years | 248,564 |
Available-for-sale Securities, Fair Value, Maturing after five years through ten years | 661,349 |
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 | 2,081,235 |
Debt Securities, Available-for-sale | 2,996,173 | 3,638,993
Held-to-maturity Securities, Amortized Cost, Maturing in one year or less | 11,959 |
Held-to-maturity Securities, Amortized Cost, Maturing after one year through five years | 38,926 |
Held-to-maturity Securities, Amortized Cost, Maturing after five years through ten years | 21,648 |
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 | 1,060,713 |
Held-to-maturity Securities, Amortized Cost | 1,133,246 | 521,355
Held-to-maturity Securities, Fair Value, Maturing in one year or less | 11,891 |
Held-to-maturity Securities, Fair Value, Maturing after one year through five years | 37,909 |
Held-to-maturity Securities, Fair Value, Maturing after five years through ten years | 20,506 |
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 | 877,110 |
Debt Securities, Held-to-maturity, Fair Value | $ 947,416 | $ 541,853

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