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SECURITIES - Investment Securities Available for Sale in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Fair Value |  |
Less than 12 months | $ 398,967 | $ 88,270
12 months or longer | 137,808 | 4,606
Total | 536,775 | 92,876
Unrealized Losses |  |
Less than 12 months | 5,550 | 368
12 months or longer | 4,420 | 37
Total | 9,970 | 405
U.S. treasury notes and bonds |  |
Fair Value |  |
Less than 12 months | 49,084 |
12 months or longer | 0 |
Total | 49,084 |
Unrealized Losses |  |
Less than 12 months | 680 |
12 months or longer | 0 |
Total | 680 |
Mortgage-backed securities, residential |  |
Fair Value |  |
Less than 12 months | 293,720 | 70,037
12 months or longer | 122,050 | 970
Total | 415,770 | 71,007
Unrealized Losses |  |
Less than 12 months | 4,502 | 200
12 months or longer | 4,229 | 1
Total | 8,731 | 201
Corporate bonds and notes |  |
Fair Value |  |
Less than 12 months | 4,928 | 2,988
12 months or longer | 1,989 | 0
Total | 6,917 | 2,988
Unrealized Losses |  |
Less than 12 months | 72 | 12
12 months or longer | 10 | 0
Total | 82 | 12
SBA loan pools |  |
Fair Value |  |
Less than 12 months | 51,235 | 15,245
12 months or longer | 13,769 | 3,636
Total | 65,004 | 18,881
Unrealized Losses |  |
Less than 12 months | 296 | 156
12 months or longer | 181 | 36
Total | $ 477 | $ 192

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