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Loans (Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	$ 3,814,783	$ 3,631,355
Net Deferred Loan (Fees) Costs	52,068	48,081
Loans, Net	3,866,851	3,679,436
Allowance for credit losses - loans	(44,106)	(39,676)
Total loans, net	3,822,745	3,639,760
Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	633,129	639,368
Net Deferred Loan (Fees) Costs	765	(1,075)
Loans, Net	633,894	638,293
Commercial Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	1,567,888	1,415,486
Net Deferred Loan (Fees) Costs	(3,343)	(2,698)
Loans, Net	1,564,545	1,412,788
Residential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	564,180	563,579
Net Deferred Loan (Fees) Costs	13,641	13,720
Loans, Net	577,821	577,299
Residential Real Estate Lines [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	74,148	75,515
Net Deferred Loan (Fees) Costs	3,188	3,016
Loans, Net	77,336	78,531
Consumer Indirect [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	959,719	923,052
Net Deferred Loan (Fees) Costs	37,704	34,996
Loans, Net	997,423	958,048
Other Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	15,719	14,355
Net Deferred Loan (Fees) Costs	113	122
Loans, Net	$ 15,832	$ 14,477

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Loans and leases receivable deferred loan (fees) costs.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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