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Loans (Loan Portfolio) (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | --- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | $ 4,555,937 |  | $ 4,441,479 |  |  |
Net Deferred Loan (Fees) Costs | 34,486 |  | 37,725 |  |  |
Total Loans | 4,590,423 |  | 4,479,204 |  |  |
Allowance for credit losses-loans | (47,292) | $ (47,291) | (48,041) | $ (44,678) | $ (43,952) | $ (51,082)
Total loans, net | 4,543,131 |  | 4,431,163 |  |  |
Commercial Business [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 739,821 |  | 664,846 |  |  |
Net Deferred Loan (Fees) Costs | 782 |  | 475 |  |  |
Total Loans | 740,603 |  | 665,321 |  |  |
Allowance for credit losses-loans | (9,770) | (8,996) | (8,665) | (8,475) | (12,246) | (13,102)
Commercial Mortgage [Member] | Construction [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 443,726 |  | 584,296 |  |  |
Net Deferred Loan (Fees) Costs | (2,692) |  | (1,677) |  |  |
Total Loans | 441,034 |  | 582,619 |  |  |
Allowance for credit losses-loans | (3,825) | (4,514) | (6,824) | (5,402) | (3,746) | (3,710)
Commercial Mortgage [Member] | Multifamily [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 593,380 |  | 471,499 |  |  |
Net Deferred Loan (Fees) Costs | (746) |  | (545) |  |  |
Total Loans | 592,634 |  | 470,954 |  |  |
Allowance for credit losses-loans | (3,799) | (3,930) | (3,458) | (2,609) | (3,449) | (4,009)
Commercial Mortgage [Member] | Non-Owner Occupied [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 895,038 |  | 859,079 |  |  |
Net Deferred Loan (Fees) Costs | (1,154) |  | (1,092) |  |  |
Total Loans | 893,884 |  | 857,987 |  |  |
Allowance for credit losses-loans | (9,168) | (8,868) | (7,330) | (7,478) | (6,052) | (6,074)
Commercial Mortgage [Member] | Owner Occupied [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 321,555 |  | 288,042 |  |  |
Net Deferred Loan (Fees) Costs | 0 |  | (6) |  |  |
Total Loans | 321,555 |  | 288,036 |  |  |
Allowance for credit losses-loans | (3,466) | (3,087) | (4,183) | (4,200) | (2,118) | (2,065)
Residential Real Estate Loans [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 639,086 |  | 639,466 |  |  |
Net Deferred Loan (Fees) Costs | 9,311 |  | 10,740 |  |  |
Total Loans | 648,397 |  | 650,206 |  |  |
Allowance for credit losses-loans | (4,192) | (4,638) | (3,596) | (3,795) | (4,211) | (5,286)
Residential Real Estate Lines [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 72,901 |  | 72,308 |  |  |
Net Deferred Loan (Fees) Costs | 3,208 |  | 3,244 |  |  |
Total Loans | 76,109 |  | 75,552 |  |  |
Allowance for credit losses-loans | (921) | (969) | (793) | (833) | (769) | (764)
Consumer Indirect [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 812,833 |  | 819,116 |  |  |
Net Deferred Loan (Fees) Costs | 25,838 |  | 26,656 |  |  |
Total Loans | 838,671 |  | 845,772 |  |  |
Allowance for credit losses-loans | (11,685) | (11,783) | (12,705) | (11,346) | (10,842) | (14,099)
Other Consumer [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal Amount Outstanding | 37,597 |  | 42,827 |  |  |
Net Deferred Loan (Fees) Costs | (61) |  | (70) |  |  |
Total Loans | 37,536 |  | 42,757 |  |  |
Allowance for credit losses-loans | $ (466) | $ (506) | $ (487) | $ (540) | $ (519) | $ (1,973)

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