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Securities - Debt Securities with Unrealized Losses in Continuous Unrealized Loss Position (Details) $ in Thousands | Dec. 31, 2022 USD ($) security | Dec. 31, 2021 USD ($) security
--- | --- | ---
Available-for-sale securities |  |
Estimated Fair Value | $ 296,224 | $ 238,782
Unrealized Losses | (20,715) | (3,454)
Estimated Fair Value | 239,756 | 55,528
Unrealized Losses | (40,391) | (1,227)
Estimated Fair Value | 535,980 | 294,310
Unrealized Losses | $ (61,106) | $ (4,681)
Number of Securities | security | 219 | 51
Held-to-maturity: |  |
Estimated Fair Value | $ 32,273 |
Unrealized Losses | (5,677) |
Estimated Fair Value | 401 |
Unrealized Losses | (15) |
Estimated Fair Value | 32,674 | $ 0
Unrealized Losses | $ (5,692) |
Number of Securities | security | 23 |
U.S. treasury |  |
Available-for-sale securities |  |
Estimated Fair Value | $ 25,702 | 35,185
Unrealized Losses | (967) | (215)
Estimated Fair Value | 30,947 | 0
Unrealized Losses | (4,394) | 0
Estimated Fair Value | 56,649 | 35,185
Unrealized Losses | $ (5,361) | $ (215)
Number of Securities | security | 10 | 4
U.S. agency |  |
Available-for-sale securities |  |
Estimated Fair Value | $ 0 | $ 0
Unrealized Losses | 0 | 0
Estimated Fair Value | 2,834 | 5,919
Unrealized Losses | (47) | (100)
Estimated Fair Value | 2,834 | 5,919
Unrealized Losses | $ (47) | $ (100)
Number of Securities | security | 7 | 7
Obligations of states and political subdivisions |  |
Available-for-sale securities |  |
Estimated Fair Value | $ 21,676 | $ 3,232
Unrealized Losses | (3,784) | (190)
Estimated Fair Value | 2,753 | 0
Unrealized Losses | (1,214) | 0
Estimated Fair Value | 24,429 | 3,232
Unrealized Losses | $ (4,998) | $ (190)
Number of Securities | security | 18 | 2
Held-to-maturity: |  |
Estimated Fair Value | $ 20,153 |
Unrealized Losses | (4,891) |
Estimated Fair Value | 0 |
Unrealized Losses | 0 |
Estimated Fair Value | 20,153 |
Unrealized Losses | $ (4,891) |
Number of Securities | security | 8 |
Mortgage backed - residential |  |
Available-for-sale securities |  |
Estimated Fair Value | $ 51,921 | $ 51,616
Unrealized Losses | (2,939) | (530)
Estimated Fair Value | 63,691 | 25,246
Unrealized Losses | (10,887) | (1,108)
Estimated Fair Value | 115,612 | 76,862
Unrealized Losses | $ (13,826) | $ (1,638)
Number of Securities | security | 87 | 17
Held-to-maturity: |  |
Estimated Fair Value | $ 7,993 |
Unrealized Losses | (511) |
Estimated Fair Value | 0 |
Unrealized Losses | 0 |
Estimated Fair Value | 7,993 |
Unrealized Losses | $ (511) |
Number of Securities | security | 10 |
Collateralized mortgage obligations |  |
Available-for-sale securities |  |
Estimated Fair Value | $ 111,360 | $ 115,877
Unrealized Losses | (4,631) | (1,938)
Estimated Fair Value | 92,905 | 193
Unrealized Losses | (16,663) | (1)
Estimated Fair Value | 204,265 | 116,070
Unrealized Losses | $ (21,294) | $ (1,939)
Number of Securities | security | 66 | 16
Held-to-maturity: |  |
Estimated Fair Value | $ 4,127 |
Unrealized Losses | (275) |
Estimated Fair Value | 401 |
Unrealized Losses | (15) |
Estimated Fair Value | 4,528 |
Unrealized Losses | $ (290) |
Number of Securities | security | 5 |
Mortgage backed - commercial |  |
Available-for-sale securities |  |
Estimated Fair Value | $ 70,710 | $ 32,872
Unrealized Losses | (6,475) | (581)
Estimated Fair Value | 46,626 | 24,170
Unrealized Losses | (7,186) | (18)
Estimated Fair Value | 117,336 | 57,042
Unrealized Losses | $ (13,661) | $ (599)
Number of Securities | security | 22 | 5
Other debt |  |
Available-for-sale securities |  |
Estimated Fair Value | $ 14,855 |
Unrealized Losses | (1,919) |
Estimated Fair Value | 0 |
Unrealized Losses | 0 |
Estimated Fair Value | 14,855 |
Unrealized Losses | $ (1,919) |
Number of Securities | security | 9 |

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