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INVESTMENT SECURITIES (Schedule of Available for Sale Securities in Continuous Unrealized Loss Position and Approximate Fair Value of Investments) (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Available for Sale Securities, Fair Value |  |
Less Than 12 Months | $ 239,412 | $ 530,647
12 Months or Longer | 279,344 | 73,051
Total | 518,756 | 603,698
Approximate Fair Value |  |
Less Than 12 Months | (25,187) | (14,478)
12 Months or Longer | (52,521) | (2,383)
Total | (77,708) | (16,861)
Held to Maturity Securities, Fair Value |  |
Less Than 12 Months | 95,642 | 73,282
12 Months or Longer |  | 0
Total | 95,642 | 73,282
Held to Maturity Securities, Unrealized Losses |  |
Less Than 12 Months | (9,406) | (294)
12 Months or Longer |  | 0
Total | (9,406) | (294)
Approximate Fair Value |  |
Fair Value, Less than 12 months | 335,054 | 603,929
Fair Value, 12 months or longer | 279,344 | 73,051
Fair Value | 614,398 | 676,980
Unrealized Losses |  |
Unrealized Losses, Less than 12 months | (34,593) | (14,772)
Unrealized Losses, 12 months or longer | (52,521) | (2,383)
Unrealized Losses | (87,114) | (17,155)
U.S. Government-Sponsored Agencies [Member] |  |
Available for Sale Securities, Fair Value |  |
Less Than 12 Months | 85,618 | 243,187
12 Months or Longer | 120,505 | 29,034
Total | 206,123 | 272,221
Approximate Fair Value |  |
Less Than 12 Months | (14,238) | (6,858)
12 Months or Longer | (24,404) | (966)
Total | (38,642) | (7,824)
Held to Maturity Securities, Fair Value |  |
Less Than 12 Months | 37,225 | 24,975
12 Months or Longer |  | 0
Total | 37,225 | 24,975
Held to Maturity Securities, Unrealized Losses |  |
Less Than 12 Months | (2,775) | (25)
12 Months or Longer |  | 0
Total | (2,775) | (25)
Mortgage-Backed Securities-Residential [Member] |  |
Available for Sale Securities, Fair Value |  |
Less Than 12 Months | 122,015 | 265,403
12 Months or Longer | 149,883 | 33,455
Total | 271,898 | 298,858
Approximate Fair Value |  |
Less Than 12 Months | (9,063) | (7,053)
12 Months or Longer | (26,482) | (884)
Total | (35,545) | (7,937)
Held to Maturity Securities, Fair Value |  |
Less Than 12 Months | 58,417 | 48,307
12 Months or Longer |  | 0
Total | 58,417 | 48,307
Held to Maturity Securities, Unrealized Losses |  |
Less Than 12 Months | (6,631) | (269)
12 Months or Longer |  | 0
Total | (6,631) | (269)
SBA Pool Securities [Member] |  |
Available for Sale Securities, Fair Value |  |
Less Than 12 Months | 22,194 | 22,057
12 Months or Longer | 8,956 | 10,562
Total | 31,150 | 32,619
Approximate Fair Value |  |
Less Than 12 Months | (1,625) | (567)
12 Months or Longer | (1,635) | (533)
Total | (3,260) | $ (1,100)
State and Political Subdivisions [Member] |  |
Available for Sale Securities, Fair Value |  |
Less Than 12 Months | 2,341 |
12 Months or Longer | 0 |
Total | 2,341 |
Approximate Fair Value |  |
Less Than 12 Months | (5) |
12 Months or Longer | 0 |
Total | (5) |
Corporate Bond [Member] |  |
Available for Sale Securities, Fair Value |  |
Less Than 12 Months | 7,244 |
12 Months or Longer | 0 |
Total | 7,244 |
Approximate Fair Value |  |
Less Than 12 Months | (256) |
12 Months or Longer | 0 |
Total | $ (256) |

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