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Investment Securities (Tables) | 12 Months Ended
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Dec. 31, 2024
Investment Securities [Abstract] |
Schedule Of Investment Securities Classified As Available-for-sale And Held-to-maturity |
Available-for-sale |  | December 31, 2024
|  |  |  | Gross |  | Gross |  |  | Allowance |  |
|  | Amortized |  | unrealized |  | unrealized |  |  | for |  | Fair
|  | cost |  | gains |  | losses |  |  | Credit Losses |  | value
U.S. Government agency securities |  | $ | 31,233 |  | $ | — |  | $ | (1,271) |  | $ | — |  | $ | 29,962
Asset-backed securities(1) |  |  | 214,346 |  |  | 177 |  |  | (24) |  |  | — |  |  | 214,499
Tax-exempt obligations of states and political subdivisions |  |  | 6,860 |  |  | — |  |  | (73) |  |  | — |  |  | 6,787
Taxable obligations of states and political subdivisions |  |  | 29,267 |  |  | 7 |  |  | (441) |  |  | — |  |  | 28,833
Residential mortgage-backed securities |  |  | 438,562 |  |  | 1,137 |  |  | (6,280) |  |  | — |  |  | 433,419
Collateralized mortgage obligation securities |  |  | 27,279 |  |  | — |  |  | (1,127) |  |  | — |  |  | 26,152
Commercial mortgage-backed securities |  |  | 778,857 |  |  | 1,653 |  |  | (17,302) |  |  | — |  |  | 763,208
|  | $ | 1,526,404 |  | $ | 2,974 |  | $ | (26,518) |  | $ | — |  | $ | 1,502,860
|  | December 31, 2024
|  |  |  | Gross |  | Gross |  |  |
|  | Amortized |  | unrealized |  | unrealized |  | Fair
(1)Asset-backed securities as shown above |  | cost |  | gains |  | losses |  | value
Federally insured student loan securities |  | $ | 2,440 |  | $ | — |  | $ | (2) |  | $ | 2,438
Collateralized loan obligation securities |  |  | 211,906 |  |  | 177 |  |  | (22) |  |  | 212,061
|  | $ | 214,346 |  | $ | 177 |  | $ | (24) |  | $ | 214,499
Available-for-sale |  | December 31, 2023
|  |  |  | Gross |  | Gross |  |  | Allowance |  |
|  | Amortized |  | unrealized |  | unrealized |  |  | for |  | Fair
|  | cost |  | gains |  | losses |  |  | Credit Losses |  | value
U.S. Government agency securities |  | $ | 35,346 |  | $ | 6 |  | $ | (1,466) |  | $ | — |  | $ | 33,886
Asset-backed securities(1) |  |  | 327,159 |  |  | 9 |  |  | (1,815) |  |  | — |  |  | 325,353
Tax-exempt obligations of states and political subdivisions |  |  | 4,860 |  |  | 39 |  |  | (48) |  |  | — |  |  | 4,851
Taxable obligations of states and political subdivisions |  |  | 43,323 |  |  | 15 |  |  | (952) |  |  | — |  |  | 42,386
Residential mortgage-backed securities |  |  | 169,882 |  |  | 108 |  |  | (9,223) |  |  | — |  |  | 160,767
Collateralized mortgage obligation securities |  |  | 35,575 |  |  | — |  |  | (1,537) |  |  | — |  |  | 34,038
Commercial mortgage-backed securities |  |  | 157,759 |  |  | — |  |  | (11,506) |  |  | — |  |  | 146,253
Corporate debt securities |  |  | 10,000 |  |  | — |  |  | — |  |  | (10,000) |  |  | —
|  | $ | 783,904 |  | $ | 177 |  | $ | (26,547) |  | $ | (10,000) |  | $ | 747,534
|  | December 31, 2023
|  |  |  | Gross |  | Gross |  |  |
|  | Amortized |  | unrealized |  | unrealized |  | Fair
(1)Asset-backed securities as shown above |  | cost |  | gains |  | losses |  | value
Federally insured student loan securities |  | $ | 6,032 |  | $ | — |  | $ | (49) |  | $ | 5,983
Collateralized loan obligation securities |  |  | 321,127 |  |  | 9 |  |  | (1,766) |  |  | 319,370
|  | $ | 327,159 |  | $ | 9 |  | $ | (1,815) |  | $ | 325,353
Amortized Cost And Fair Value Of Investment Securities By Contractual Maturity |
|  | Available-for-sale
|  | Amortized |  | Fair
|  | cost |  | value
Due before one year |  | $ | 51,119 |  | $ | 50,650
Due after one year through five years |  |  | 183,022 |  |  | 179,836
Due after five years through ten years |  |  | 684,504 |  |  | 678,320
Due after ten years |  |  | 607,759 |  |  | 594,054
|  | $ | 1,526,404 |  | $ | 1,502,860
Schedule of Unrealized Loss on Investments | The table below indicates the length of time individual securities had been in continuous unrealized loss positions at December 31, 2024 (dollars in thousands):
Available-for-sale |  |  |  | Less than 12 months |  | 12 months or longer |  | Total
|  | Number of securities |  | Fair Value |  | Unrealized losses |  |  | Fair Value |  | Unrealized losses |  | Fair Value |  | Unrealized losses
Description of Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government agency securities |  | 18 |  | $ | 15,384 |  | $ | (307) |  | $ | 14,578 |  | $ | (964) |  | $ | 29,962 |  | $ | (1,271)
Asset-backed securities |  | 14 |  |  | 35,108 |  |  | (8) |  |  | 33,854 |  |  | (16) |  |  | 68,962 |  |  | (24)
Tax-exempt obligations of states and political subdivisions |  | 6 |  |  | 5,664 |  |  | (36) |  |  | 1,123 |  |  | (37) |  |  | 6,787 |  |  | (73)
Taxable obligations of states and political subdivisions |  | 18 |  |  | 1,157 |  |  | (18) |  |  | 25,734 |  |  | (423) |  |  | 26,891 |  |  | (441)
Residential mortgage-backed securities |  | 155 |  |  | 172,076 |  |  | (1,156) |  |  | 37,527 |  |  | (5,124) |  |  | 209,603 |  |  | (6,280)
Collateralized mortgage obligation securities |  | 19 |  |  | — |  |  | — |  |  | 26,152 |  |  | (1,127) |  |  | 26,152 |  |  | (1,127)
Commercial mortgage-backed securities |  | 37 |  |  | 351,595 |  |  | (4,402) |  |  | 166,554 |  |  | (12,900) |  |  | 518,149 |  |  | (17,302)
Total unrealized loss position |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
investment securities |  | 267 |  | $ | 580,984 |  | $ | (5,927) |  | $ | 305,522 |  | $ | (20,591) |  | $ | 886,506 |  | $ | (26,518)
The table below indicates the length of time individual securities had been in continuous unrealized loss positions at December 31, 2023 (dollars in thousands):
Available-for-sale |  |  |  | Less than 12 months |  | 12 months or longer |  | Total
|  | Number of securities |  | Fair Value |  | Unrealized losses |  | Fair Value |  | Unrealized losses |  | Fair Value |  | Unrealized losses
Description of Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government agency securities |  | 15 |  | $ | 14,945 |  | $ | (302) |  | $ | 17,697 |  | $ | (1,164) |  | $ | 32,642 |  | $ | (1,466)
Asset-backed securities |  | 53 |  |  | — |  |  | — |  |  | 314,749 |  |  | (1,815) |  |  | 314,749 |  |  | (1,815)
Tax-exempt obligations of states and political subdivisions |  | 3 |  |  | 997 |  |  | (3) |  |  | 1,850 |  |  | (45) |  |  | 2,847 |  |  | (48)
Taxable obligations of states and political subdivisions |  | 25 |  |  | — |  |  | — |  |  | 39,621 |  |  | (952) |  |  | 39,621 |  |  | (952)
Residential mortgage-backed securities |  | 132 |  |  | 20,884 |  |  | (491) |  |  | 126,645 |  |  | (8,732) |  |  | 147,529 |  |  | (9,223)
Collateralized mortgage obligation securities |  | 20 |  |  | — |  |  | — |  |  | 34,038 |  |  | (1,537) |  |  | 34,038 |  |  | (1,537)
Commercial mortgage-backed securities |  | 40 |  |  | — |  |  | — |  |  | 146,253 |  |  | (11,506) |  |  | 146,253 |  |  | (11,506)
Total unrealized loss position |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
investment securities |  | 288 |  | $ | 36,826 |  | $ | (796) |  | $ | 680,853 |  | $ | (25,751) |  | $ | 717,679 |  | $ | (26,547)

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