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Investments - Unrealized losses (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Schedule of Available-for-sale Securities |  |
Less than 12 Months, Fair Value | $ 434,818 | $ 496,816
Less than 12 Months, Unrealized Losses | (62,347) | (7,842)
12 Months or More, Fair Value | 233,482 | 75,609
12 Months or More, Unrealized Losses | (42,198) | (1,696)
Total Fair Value | 668,300 | 572,425
Total Unrealized Losses | (104,545) | (9,538)
Held-to-Maturity Securities, Less than 12 Months, Fair Value | 150,190 |
Held-to-Maturity Securities, Less than 12 Months, Unrealized Losses | (21,556) |
Held-to-Maturity Securities, More than 12 Months, Fair Value | 117,253 |
Held-to-Maturity Securities, More than 12 Months, Unrealized Losses | (16,508) |
Held-to-Maturity Securities, Fair Value | 267,443 |
Held-to-Maturity Securities, Unrealized Losses | (38,064) |
U.S. Government agencies |  |
Schedule of Available-for-sale Securities |  |
Less than 12 Months, Fair Value | 333 |
Less than 12 Months, Unrealized Losses | (11) |
12 Months or More, Fair Value | 0 |
12 Months or More, Unrealized Losses | 0 |
Total Fair Value | 333 |
Total Unrealized Losses | (11) |
Obligations of states and political subdivisions |  |
Schedule of Available-for-sale Securities |  |
Less than 12 Months, Fair Value | 165,535 | 143,336
Less than 12 Months, Unrealized Losses | (32,830) | (2,896)
12 Months or More, Fair Value | 17,063 | 6,336
12 Months or More, Unrealized Losses | (4,320) | (292)
Total Fair Value | 182,598 | 149,672
Total Unrealized Losses | (37,150) | (3,188)
Held-to-Maturity Securities, Less than 12 Months, Fair Value | 87,855 |
Held-to-Maturity Securities, Less than 12 Months, Unrealized Losses | (15,353) |
Held-to-Maturity Securities, More than 12 Months, Fair Value | 76,024 |
Held-to-Maturity Securities, More than 12 Months, Unrealized Losses | (12,768) |
Held-to-Maturity Securities, Fair Value | 163,879 |
Held-to-Maturity Securities, Unrealized Losses | (28,121) |
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations |  |
Schedule of Available-for-sale Securities |  |
Less than 12 Months, Fair Value | 66,164 | 91,385
Less than 12 Months, Unrealized Losses | (3,371) | (905)
12 Months or More, Fair Value | 49,176 | 40,365
12 Months or More, Unrealized Losses | (4,385) | (372)
Total Fair Value | 115,340 | 131,750
Total Unrealized Losses | (7,756) | (1,277)
Held-to-Maturity Securities, Less than 12 Months, Fair Value | 0 |
Held-to-Maturity Securities, Less than 12 Months, Unrealized Losses | 0 |
Held-to-Maturity Securities, More than 12 Months, Fair Value | 9,033 |
Held-to-Maturity Securities, More than 12 Months, Unrealized Losses | (1,317) |
Held-to-Maturity Securities, Fair Value | 9,033 |
Held-to-Maturity Securities, Unrealized Losses | (1,317) |
Private label mortgage and asset backed securities |  |
Schedule of Available-for-sale Securities |  |
Less than 12 Months, Fair Value | 202,786 | 230,987
Less than 12 Months, Unrealized Losses | (26,135) | (3,661)
12 Months or More, Fair Value | 158,695 | 28,908
12 Months or More, Unrealized Losses | (32,052) | (1,032)
Total Fair Value | 361,481 | 259,895
Total Unrealized Losses | (58,187) | (4,693)
Held-to-Maturity Securities, Less than 12 Months, Fair Value | 35,419 |
Held-to-Maturity Securities, Less than 12 Months, Unrealized Losses | (4,702) |
Held-to-Maturity Securities, More than 12 Months, Fair Value | 15,749 |
Held-to-Maturity Securities, More than 12 Months, Unrealized Losses | (1,331) |
Held-to-Maturity Securities, Fair Value | 51,168 |
Held-to-Maturity Securities, Unrealized Losses | (6,033) |
Corporate debt securities |  |
Schedule of Available-for-sale Securities |  |
Less than 12 Months, Fair Value |  | 21,183
Less than 12 Months, Unrealized Losses |  | (317)
12 Months or More, Fair Value |  | 0
12 Months or More, Unrealized Losses |  | 0
Total Fair Value |  | 21,183
Total Unrealized Losses |  | (317)
Held-to-Maturity Securities, Less than 12 Months, Fair Value | 26,916 |
Held-to-Maturity Securities, Less than 12 Months, Unrealized Losses | (1,501) |
Held-to-Maturity Securities, More than 12 Months, Fair Value | 16,447 |
Held-to-Maturity Securities, More than 12 Months, Unrealized Losses | (1,092) |
Held-to-Maturity Securities, Fair Value | 43,363 |
Held-to-Maturity Securities, Unrealized Losses | (2,593) |
U.S. Treasury securities |  |
Schedule of Available-for-sale Securities |  |
Less than 12 Months, Fair Value | 0 | 9,925
Less than 12 Months, Unrealized Losses | 0 | (63)
12 Months or More, Fair Value | 8,548 | 0
12 Months or More, Unrealized Losses | (1,441) | 0
Total Fair Value | 8,548 | 9,925
Total Unrealized Losses | $ (1,441) | $ (63)

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