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SECURITIES (Tables) | 12 Months Ended
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Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Summary of Available-For-Sale Securities | Information related to the amortized cost, fair value and allowance for credit losses of securities available-for-sale and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) at December 31, 2023 and 2022 is provided in the tables below.
(dollars in thousands) | Amortized Cost |  | Gross Unrealized Gain |  | Gross Unrealized Losses |  | Allowance for Credit Losses |  | Fair Value
2023 |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies | $ | 146,692 |  |  | $ | 0 |  |  | $ | (27,213) |  |  | $ | 0 |  |  | $ | 119,479 |
Mortgage-backed securities: residential | 522,275 |  |  | 118 |  |  | (74,551) |  |  | 0 |  |  | 447,842 |
State and municipal securities | 557,352 |  |  | 65 |  |  | (73,010) |  |  | 0 |  |  | 484,407 |
Total | $ | 1,226,319 |  |  | $ | 183 |  |  | $ | (174,774) |  |  | $ | 0 |  |  | $ | 1,051,728 |
2022 |  |  |  |  |  |  |  |  |
U.S. Treasury securities | $ | 3,057 |  |  | $ | 0 |  |  | $ | (23) |  |  | $ | 0 |  |  | $ | 3,034 |
U.S. government sponsored agencies | 156,184 |  |  | 0 |  |  | (29,223) |  |  | 0 |  |  | 126,961 |
Mortgage-backed securities: residential | 578,175 |  |  | 67 |  |  | (85,934) |  |  | 0 |  |  | 492,308 |
State and municipal securities | 663,367 |  |  | 157 |  |  | (100,299) |  |  | 0 |  |  | 563,225 |
Total | $ | 1,400,783 |  |  | $ | 224 |  |  | $ | (215,479) |  |  | $ | 0 |  |  | $ | 1,185,528 |
Schedule of Debt Securities, Held-to-Maturity | Information related to the amortized cost, fair value and allowance for credit losses of securities held-to-maturity and the related gross gains and unrealized gains and losses at December 31, 2023 and 2022 is presented in the table below.
(dollars in thousands) |  | Amortized Cost |  | Gross Unrealized Gain |  | Gross Unrealized Losses |  | Allowance for Credit Losses |  | Fair Value
2023 |  |  |  |  |  |  |  |  |  |
State and municipal securities |  | $ | 129,918 |  |  | $ | 0 |  |  | $ | (10,703) |  |  | $ | 0 |  |  | $ | 119,215 |
2022 |  |  |  |  |  |  |  |  |  |
State and municipal securities |  | $ | 128,242 |  |  | $ | 0 |  |  | $ | (17,213) |  |  | $ | 0 |  |  | $ | 111,029 |
Schedule of Available-For-Sale Securities By Maturity |
|  | Available-for-Sale |  | Held-to-Maturity
(dollars in thousands) |  | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Due in one year or less |  | $ | 1,190 |  |  | $ | 1,191 |  |  | $ | 0 |  |  | $ | 0 |
Due after one year through five years |  | 8,011 |  |  | 7,421 |  |  | 0 |  |  | 0 |
Due after five years through ten years |  | 40,627 |  |  | 38,730 |  |  | 0 |  |  | 0 |
Due after ten years |  | 654,216 |  |  | 556,544 |  |  | 129,918 |  |  | 119,215 |
|  | 704,044 |  |  | 603,886 |  |  | 129,918 |  |  | 119,215 |
Mortgage-backed securities |  | 522,275 |  |  | 447,842 |  |  | 0 |  |  | 0 |
Total debt securities |  | $ | 1,226,319 |  |  | $ | 1,051,728 |  |  | $ | 129,918 |  |  | $ | 119,215 |
Schedule of Sales of Securities Available For Sale | Security proceeds, gross gains and gross losses for 2023, 2022 and 2021 were as follows:
(dollars in thousands) | 2023 |  | 2022 |  | 2021
Sales of securities available-for-sale |  |  |  |  |
Proceeds | $ | 105,175 |  |  | $ | 25,332 |  |  | $ | 13,964 |
Gross gains | 439 |  |  | 140 |  |  | 797 |
Gross losses | (464) |  |  | (119) |  |  | 0 |
Number of securities | 115 |  |  | 30 |  |  | 9 |
Schedule of Available-For-Sale Securities Continuous Unrealized Loss Position | Information regarding available-for-sale securities securities with unrealized losses as of December 31, 2023 and 2022 is presented below. The tables distribute the securities between those with unrealized losses for less than twelve months and those with unrealized losses for twelve months or more.
| Less than 12 months |  | 12 months or more |  | Total
(dollars in thousands) | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
2023 |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies | $ | 0 |  |  | $ | 0 |  |  | $ | 119,479 |  |  | $ | 27,213 |  |  | $ | 119,479 |  |  | $ | 27,213 |
Mortgage-backed securities: residential | 52 |  |  | 0 |  |  | 442,765 |  |  | 74,551 |  |  | 442,817 |  |  | 74,551 |
State and municipal securities | 31,345 |  |  | 440 |  |  | 440,446 |  |  | 72,570 |  |  | 471,791 |  |  | 73,010 |
Total temporarily impaired | $ | 31,397 |  |  | $ | 440 |  |  | $ | 1,002,690 |  |  | $ | 174,334 |  |  | $ | 1,034,087 |  |  | $ | 174,774 |
2022 |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities | $ | 3,034 |  |  | $ | 23 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 3,034 |  |  | $ | 23 |
U.S. government sponsored agencies | 8,420 |  |  | 1,350 |  |  | 118,541 |  |  | 27,873 |  |  | 126,961 |  |  | 29,223 |
Mortgage-backed securities: residential | 165,897 |  |  | 18,637 |  |  | 323,727 |  |  | 67,297 |  |  | 489,624 |  |  | 85,934 |
State and municipal securities | 277,967 |  |  | 33,405 |  |  | 244,436 |  |  | 66,894 |  |  | 522,403 |  |  | 100,299 |
Total temporarily impaired | $ | 455,318 |  |  | $ | 53,415 |  |  | $ | 686,704 |  |  | $ | 162,064 |  |  | $ | 1,142,022 |  |  | $ | 215,479 |
Schedule of Debt Securities, Held-To-Maturity, Unrealized Loss Position, Fair Value | Information regarding held-to-maturity securities with unrealized losses as of December 31, 2023 and 2022 is presented below. The table divides the securities between those with unrealized losses for less than twelve months and those with unrealized losses for twelve months or more.
|  | Less than 12 months |  | 12 months or more |  | Total
(dollars in thousands) |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
2023 |  |  |  |  |  |  |  |  |  |  |  |
State and municipal securities |  | $ | 0 |  |  | $ | 0 |  |  | $ | 119,215 |  |  | $ | 10,703 |  |  | $ | 119,215 |  |  | $ | 10,703 |
2022 |  |  |  |  |  |  |  |  |  |  |  |
State and municipal securities |  | $ | 0 |  |  | $ | 0 |  |  | $ | 111,029 |  |  | $ | 17,213 |  |  | $ | 111,029 |  |  | $ | 17,213 |
Schedule of Quantitative Disclosure of Available-For-Sale Securities | The number of securities with unrealized losses as of December 31, 2023 and 2022 is presented below.
| Available-for-Sale |  | Held-to-Maturity
| Less than 12 months |  | 12 months or more |  | Total |  | Less than 12 months |  | 12 months or more |  | Total
2023 |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored agencies | 0 |  |  | 17 |  |  | 17 |  |  | 0 |  |  | 0 |  |  | 0 |
Mortgage-backed securities: residential | 1 |  |  | 126 |  |  | 127 |  |  | 0 |  |  | 0 |  |  | 0 |
State and municipal securities | 40 |  |  | 370 |  |  | 410 |  |  | 0 |  |  | 41 |  |  | 41 |
Total temporarily impaired | 41 |  |  | 513 |  |  | 554 |  |  | 0 |  |  | 41 |  |  | 41 |
2022 |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities | 7 |  |  | 0 |  |  | 7 |  |  | 0 |  |  | 0 |  |  | 0 |
U.S. government sponsored agencies | 1 |  |  | 16 |  |  | 17 |  |  | 0 |  |  | 0 |  |  | 0 |
Mortgage-backed securities: residential | 95 |  |  | 41 |  |  | 136 |  |  | 0 |  |  | 0 |  |  | 0 |
State and municipal securities | 269 |  |  | 223 |  |  | 492 |  |  | 0 |  |  | 41 |  |  | 41 |
Total temporarily impaired | 372 |  |  | 280 |  |  | 652 |  |  | 0 |  |  | 41 |  |  | 41 |

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