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SECURITIES - Investment Securities Available for Sale in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value |  |
Less than 12 months | $ 439,529 | $ 398,967
12 months or longer | 224,609 | 137,808
Total | 664,138 | 536,775
Unrealized Losses |  |
Less than 12 months | 24,590 | 5,550
12 months or longer | 21,682 | 4,420
Total | 46,272 | 9,970
U.S. Treasury notes and bonds |  |
Fair Value |  |
Less than 12 months | 57,222 | 49,084
12 months or longer | 0 | 0
Total | 57,222 | 49,084
Unrealized Losses |  |
Less than 12 months | 3,675 | 680
12 months or longer | 0 | 0
Total | 3,675 | 680
Mortgage-backed securities, residential |  |
Fair Value |  |
Less than 12 months | 315,115 | 293,720
12 months or longer | 197,549 | 122,050
Total | 512,664 | 415,770
Unrealized Losses |  |
Less than 12 months | 19,657 | 4,502
12 months or longer | 21,428 | 4,229
Total | 41,085 | 8,731
Obligations of states and political subdivisions |  |
Fair Value |  |
Less than 12 months | 11,259 |
12 months or longer | 0 |
Total | 11,259 |
Unrealized Losses |  |
Less than 12 months | 91 |
12 months or longer | 0 |
Total | 91 |
Corporate bonds and notes |  |
Fair Value |  |
Less than 12 months | 11,268 | 4,928
12 months or longer | 1,989 | 1,989
Total | 13,257 | 6,917
Unrealized Losses |  |
Less than 12 months | 481 | 72
12 months or longer | 11 | 10
Total | 492 | 82
SBA loan pools |  |
Fair Value |  |
Less than 12 months | 44,665 | 51,235
12 months or longer | 25,071 | 13,769
Total | 69,736 | 65,004
Unrealized Losses |  |
Less than 12 months | 686 | 296
12 months or longer | 243 | 181
Total | $ 929 | $ 477

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