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Fair Value Measurements (Carrying Amount, Estimated Fair Value, and Placement in Fair Value Hierarchy of Financial Instruments) (Details) - USD ($) $ in Thousands		Jun. 30, 2025	Dec. 31, 2024
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Securities available for sale		$ 916,149	$ 911,105
Securities held to maturity, fair value		81,555	104,556
Accrued interest receivable		24,928	23,748
FHLB and FRB stock		20,798	18,261
Carrying Amount [Member] | Level 1 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents		93,034	87,321
Accrued interest receivable		24,928	23,748
Non-maturity deposits		3,543,514	3,559,559
Short-term borrowings		101,000	99,000
Accrued interest payable		23,687	25,856
Carrying Amount [Member] | Level 2 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Securities available for sale		916,149	911,105
Securities held to maturity, fair value		92,119	116,001
Loans held for sale		2,356	2,280
Loans		4,442,125	4,374,917
FHLB and FRB stock		20,798	18,261
Time deposits		1,612,500	1,545,172
Long-term borrowings		114,960	124,842
Carrying Amount [Member] | Level 2 Inputs [Member] | Cash Flow Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		3,218	4,693
Derivative instruments, liabilities		0	0
Carrying Amount [Member] | Level 2 Inputs [Member] | Interest Rate Products [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		28,375	41,318
Derivative instruments, liabilities		28,376	41,319
Carrying Amount [Member] | Level 2 Inputs [Member] | Mortgage Banking [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		173	122
Derivative instruments, liabilities		114	91
Carrying Amount [Member] | Level 3 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Loans	[1]	46,586	56,246
Long-lived assets held for sale		528	596
Estimated Fair Value [Member] | Level 1 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents		93,034	87,321
Accrued interest receivable		24,928	23,748
Non-maturity deposits		3,543,514	3,559,559
Short-term borrowings		101,000	99,000
Accrued interest payable		23,687	25,856
Estimated Fair Value [Member] | Level 2 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Securities available for sale		916,149	911,105
Securities held to maturity, fair value		81,555	104,556
Loans held for sale		2,356	2,280
Loans		4,334,122	4,277,167
FHLB and FRB stock		20,798	18,261
Time deposits		1,607,647	1,541,013
Long-term borrowings		121,187	127,402
Estimated Fair Value [Member] | Level 2 Inputs [Member] | Cash Flow Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		3,218	4,693
Derivative instruments, liabilities		0	0
Estimated Fair Value [Member] | Level 2 Inputs [Member] | Interest Rate Products [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		28,375	41,318
Derivative instruments, liabilities		28,376	41,319
Estimated Fair Value [Member] | Level 2 Inputs [Member] | Mortgage Banking [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		173	122
Derivative instruments, liabilities		114	91
Estimated Fair Value [Member] | Level 3 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Loans	[1]	46,586	56,246
Long-lived assets held for sale		$ 528	$ 596
[1] Comprised of collateral dependent loans.

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Fair value portion of liabilities incurred for goods and services received that are used in an entity's business and related party payables.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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