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INVESTMENT SECURITIES (Unrealized Gains and Losses by Category) (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Securities Available-for-Sale, Amortized Cost |  |
12 months or more | $ 95,495 |
Less than 12 months | 775,763 | $ 98,962
Total | 871,258 |
Securities Available-for-Sale, Unrealized Loss |  |
12 months or more | 10,140 |
Less than 12 months | 14,284 | 3,400
Total | 24,424 |
Securities Available-for-Sale, Fair Value |  |
12 months or more | 85,355 | 0
Less than 12 months | 761,479 | 95,562
Total | 846,834 |
CMOs issued by US Government-sponsored agencies |  |
Securities Available-for-Sale, Amortized Cost |  |
Less than 12 months | 20,744 | 500
Total | 20,744 |
Securities Available-for-Sale, Unrealized Loss |  |
Less than 12 months | 328 | 1
Total | 328 |
Securities Available-for-Sale, Fair Value |  |
Less than 12 months | 20,416 | 499
Total | 20,416 |
FNMA and FHLMC certificates |  |
Securities Available-for-Sale, Amortized Cost |  |
12 months or more | 91,258 |
Less than 12 months | 481,614 | 93,440
Total | 572,872 |
Held-to-Maturity, Amortized Cost |  |
Less than 12 months | 359,806 | 367,507
Total | 359,806 |
Securities Available-for-Sale, Unrealized Loss |  |
12 months or more | 9,884 |
Less than 12 months | 5,518 | 3,200
Total | 15,402 |
Held-to-Maturity, Unrealized Loss |  |
Less than 12 months | 29,837 | 3,854
Total | 29,837 |
Securities Available-for-Sale, Fair Value |  |
12 months or more | 81,374 |
Less than 12 months | 476,096 | 90,240
Total | 557,470 |
Held-to-Maturity, Fair Value |  |
Fair Value | 329,969 | 363,653
Total | 329,969 |
GNMA Securities |  |
Securities Available-for-Sale, Amortized Cost |  |
12 months or more | 4,237 |
Less than 12 months | 273,405 | 5,022
Total | 277,642 |
Securities Available-for-Sale, Unrealized Loss |  |
12 months or more | 256 |
Less than 12 months | 8,438 | 199
Total | 8,694 |
Securities Available-for-Sale, Fair Value |  |
12 months or more | 3,981 |
Less than 12 months | 264,967 | $ 4,823
Total | $ 268,948 |

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