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Allowance for Credit Losses and Credit Quality of Loans, Credit Quality Indicators (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Credit Quality Indicators [Abstract] |  |  |
Minimum number of days past due for loans to be considered nonperforming | 90 days |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | $ 1,444,390 | $ 1,444,621 |
2023/2022 | 1,217,572 | 1,989,711 |
2022/2021 | 1,799,431 | 1,688,309 |
2021/2020 | 1,426,865 | 1,019,863 |
2020/2019 | 875,399 | 692,961 |
Prior | 2,133,000 | 1,840,266 |
Revolving Loans Amortized Cost Basis | 997,401 | 920,868 |
Revolving Loans Converted to Term | 75,852 | 54,114 |
Total | 9,969,910 | 9,650,713 |
Gross Charge-offs by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | (876) | (1,161) |
2023/2022 | (2,471) | (9,878) |
2022/2021 | (9,194) | (9,586) |
2021/2020 | (8,352) | (1,830) |
2020/2019 | (1,353) | (1,805) |
Prior | (3,482) | (2,518) |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | (25,728) | (26,778) | $ (18,643)
C&I [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 258,515 | 231,165 |
2023/2022 | 174,007 | 274,930 |
2022/2021 | 185,741 | 243,881 |
2021/2020 | 181,034 | 161,857 |
2020/2019 | 119,306 | 76,826 |
Prior | 106,641 | 71,313 |
Revolving Loans Amortized Cost Basis | 395,256 | 333,003 |
Revolving Loans Converted to Term | 9,713 | 4,530 |
Total | 1,430,213 | 1,397,505 |
Gross Charge-offs by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 0 | (24) |
2023/2022 | (99) | (3,021) |
2022/2021 | (1,063) | (5) |
2021/2020 | (162) | (86) |
2020/2019 | 0 | 0 |
Prior | (1,352) | (600) |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | (2,676) | (3,736) |
C&I [Member] | Pass [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 255,824 | 229,249 |
2023/2022 | 166,780 | 270,796 |
2022/2021 | 180,095 | 241,993 |
2021/2020 | 177,839 | 158,051 |
2020/2019 | 118,826 | 74,469 |
Prior | 101,755 | 63,826 |
Revolving Loans Amortized Cost Basis | 349,443 | 299,248 |
Revolving Loans Converted to Term | 3,588 | 2,923 |
Total | 1,354,150 | 1,340,555 |
C&I [Member] | Special Mention [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 272 | 420 |
2023/2022 | 3,265 | 1,672 |
2022/2021 | 3,461 | 277 |
2021/2020 | 1,639 | 3,524 |
2020/2019 | 307 | 87 |
Prior | 1,008 | 1,854 |
Revolving Loans Amortized Cost Basis | 22,582 | 19,489 |
Revolving Loans Converted to Term | 4,374 | 0 |
Total | 36,908 | 27,323 |
C&I [Member] | Substandard [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 2,419 | 1,496 |
2023/2022 | 3,895 | 2,461 |
2022/2021 | 2,183 | 1,609 |
2021/2020 | 1,555 | 282 |
2020/2019 | 173 | 2,266 |
Prior | 3,878 | 5,632 |
Revolving Loans Amortized Cost Basis | 23,231 | 14,266 |
Revolving Loans Converted to Term | 1,751 | 1,607 |
Total | 39,085 | 29,619 |
C&I [Member] | Doubtful [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 0 | 0 |
2023/2022 | 67 | 1 |
2022/2021 | 2 | 2 |
2021/2020 | 1 | 0 |
2020/2019 | 0 | 4 |
Prior | 0 | 1 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | 70 | 8 |
CRE [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 417,408 | 357,108 |
2023/2022 | 368,983 | 523,404 |
2022/2021 | 593,611 | 594,415 |
2021/2020 | 539,685 | 460,311 |
2020/2019 | 421,409 | 340,767 |
Prior | 990,610 | 816,067 |
Revolving Loans Amortized Cost Basis | 317,272 | 307,971 |
Revolving Loans Converted to Term | 47,162 | 33,705 |
Total | 3,696,140 | 3,433,748 |
Gross Charge-offs by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 0 | 0 |
2023/2022 | 0 | 0 |
2022/2021 | 0 | 0 |
2021/2020 | (2,366) | 0 |
2020/2019 | 0 | (114) |
Prior | 0 | (304) |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | (2,366) | (418) |
CRE [Member] | Pass [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 414,835 | 353,161 |
2023/2022 | 352,834 | 518,201 |
2022/2021 | 550,682 | 561,897 |
2021/2020 | 514,134 | 452,110 |
2020/2019 | 414,737 | 327,804 |
Prior | 912,693 | 739,189 |
Revolving Loans Amortized Cost Basis | 314,574 | 294,039 |
Revolving Loans Converted to Term | 45,940 | 33,705 |
Total | 3,520,429 | 3,280,106 |
CRE [Member] | Special Mention [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 2,573 | 3,577 |
2023/2022 | 14,406 | 4,472 |
2022/2021 | 23,747 | 10,711 |
2021/2020 | 7,440 | 7,055 |
2020/2019 | 4,310 | 9,967 |
Prior | 16,888 | 39,460 |
Revolving Loans Amortized Cost Basis | 2,044 | 2,970 |
Revolving Loans Converted to Term | 1,222 | 0 |
Total | 72,630 | 78,212 |
CRE [Member] | Substandard [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 0 | 370 |
2023/2022 | 1,743 | 731 |
2022/2021 | 19,182 | 21,807 |
2021/2020 | 18,111 | 1,146 |
2020/2019 | 2,362 | 2,996 |
Prior | 61,029 | 37,418 |
Revolving Loans Amortized Cost Basis | 654 | 10,962 |
Revolving Loans Converted to Term | 0 | 0 |
Total | 103,081 | 75,430 |
Auto [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 558,411 | 474,901 |
2023/2022 | 322,528 | 364,757 |
2022/2021 | 238,942 | 158,081 |
2021/2020 | 90,602 | 42,834 |
2020/2019 | 20,038 | 45,712 |
Prior | 14,385 | 13,145 |
Revolving Loans Amortized Cost Basis | 0 | 12 |
Revolving Loans Converted to Term | 0 | 0 |
Total | 1,244,906 | 1,099,442 |
Gross Charge-offs by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | (141) | (102) |
2023/2022 | (1,478) | (1,183) |
2022/2021 | (1,610) | (1,066) |
2021/2020 | (837) | (340) |
2020/2019 | (116) | (301) |
Prior | (347) | (295) |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | (4,529) | (3,287) |
Auto [Member] | Performing [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 557,817 | 474,369 |
2023/2022 | 321,545 | 363,516 |
2022/2021 | 238,232 | 157,251 |
2021/2020 | 90,143 | 42,644 |
2020/2019 | 19,931 | 45,406 |
Prior | 14,284 | 13,071 |
Revolving Loans Amortized Cost Basis | 0 | 12 |
Revolving Loans Converted to Term | 0 | 0 |
Total | 1,241,952 | 1,096,269 |
Auto [Member] | Nonperforming [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 594 | 532 |
2023/2022 | 983 | 1,241 |
2022/2021 | 710 | 830 |
2021/2020 | 459 | 190 |
2020/2019 | 107 | 306 |
Prior | 101 | 74 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | 2,954 | 3,173 |
Residential Solar [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 4,381 | 155,425 |
2023/2022 | 121,968 | 431,692 |
2022/2021 | 398,899 | 179,044 |
2021/2020 | 166,506 | 65,400 |
2020/2019 | 56,692 | 46,601 |
Prior | 71,633 | 39,593 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | 820,079 | 917,755 |
Gross Charge-offs by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 0 | (150) |
2023/2022 | (530) | (1,930) |
2022/2021 | (4,441) | (923) |
2021/2020 | (716) | (45) |
2020/2019 | (201) | (558) |
Prior | (694) | (345) |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | (6,582) | (3,951) |
Residential Solar [Member] | Performing [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 4,381 | 155,425 |
2023/2022 | 121,755 | 430,855 |
2022/2021 | 398,030 | 178,839 |
2021/2020 | 166,018 | 65,382 |
2020/2019 | 56,612 | 46,554 |
Prior | 71,472 | 39,540 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | 818,268 | 916,595 |
Residential Solar [Member] | Nonperforming [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 0 | 0 |
2023/2022 | 213 | 837 |
2022/2021 | 869 | 205 |
2021/2020 | 488 | 18 |
2020/2019 | 80 | 47 |
Prior | 161 | 53 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | 1,811 | 1,160 |
Other Consumer [Member] |  |  |
Credit Quality Indicators [Abstract] |  |  |
Overdrawn deposit related to gross charge-offs reported as 2022 originations |  | 200 |
Overdrawn deposit related to gross charge-offs reported as 2023 originations | 200 | 800 |
Overdrawn deposit related to gross charge-offs reported as 2024 originations | 700 |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 16,438 | 13,089 |
2023/2022 | 6,728 | 27,638 |
2022/2021 | 11,999 | 58,561 |
2021/2020 | 27,478 | 21,231 |
2020/2019 | 10,927 | 14,604 |
Prior | 16,083 | 16,125 |
Revolving Loans Amortized Cost Basis | 19,522 | 19,046 |
Revolving Loans Converted to Term | 42 | 66 |
Total | 109,217 | 170,360 |
Gross Charge-offs by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | (735) | (885) |
2023/2022 | (330) | (3,744) |
2022/2021 | (2,080) | (7,511) |
2021/2020 | (4,271) | (1,329) |
2020/2019 | (1,036) | (832) |
Prior | (912) | (568) |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | (9,364) | (14,869) |
Other Consumer [Member] | Performing [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 16,426 | 13,089 |
2023/2022 | 6,685 | 27,394 |
2022/2021 | 11,792 | 57,876 |
2021/2020 | 27,045 | 21,087 |
2020/2019 | 10,718 | 14,548 |
Prior | 15,881 | 15,964 |
Revolving Loans Amortized Cost Basis | 19,507 | 19,042 |
Revolving Loans Converted to Term | 12 | 21 |
Total | 108,066 | 169,021 |
Other Consumer [Member] | Nonperforming [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 12 | 0 |
2023/2022 | 43 | 244 |
2022/2021 | 207 | 685 |
2021/2020 | 433 | 144 |
2020/2019 | 209 | 56 |
Prior | 202 | 161 |
Revolving Loans Amortized Cost Basis | 15 | 4 |
Revolving Loans Converted to Term | 30 | 45 |
Total | 1,151 | 1,339 |
Residential [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 189,237 | 212,933 |
2023/2022 | 223,358 | 367,290 |
2022/2021 | 370,239 | 454,327 |
2021/2020 | 421,560 | 268,230 |
2020/2019 | 247,027 | 168,451 |
Prior | 933,648 | 884,023 |
Revolving Loans Amortized Cost Basis | 265,351 | 260,836 |
Revolving Loans Converted to Term | 18,935 | 15,813 |
Total | 2,669,355 | 2,631,903 |
Gross Charge-offs by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 0 | 0 |
2023/2022 | (34) | 0 |
2022/2021 | 0 | (81) |
2021/2020 | 0 | (30) |
2020/2019 | 0 | 0 |
Prior | (177) | (406) |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 0 |
Total | (211) | (517) | $ (633)
Residential [Member] | Performing [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 188,657 | 212,799 |
2023/2022 | 222,593 | 366,860 |
2022/2021 | 369,473 | 453,206 |
2021/2020 | 419,053 | 267,845 |
2020/2019 | 246,867 | 167,860 |
Prior | 924,869 | 876,563 |
Revolving Loans Amortized Cost Basis | 265,351 | 260,836 |
Revolving Loans Converted to Term | 18,935 | 15,300 |
Total | 2,655,798 | 2,621,269 |
Residential [Member] | Nonperforming [Member] |  |  |
Credit Quality by Loan Class by Vintage [Abstract] |  |  |
2024/2023 | 580 | 134 |
2023/2022 | 765 | 430 |
2022/2021 | 766 | 1,121 |
2021/2020 | 2,507 | 385 |
2020/2019 | 160 | 591 |
Prior | 8,779 | 7,460 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Revolving Loans Converted to Term | 0 | 513 |
Total | $ 13,557 | $ 10,634 |

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