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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, 2024	Dec. 31, 2023
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Securities available for sale		$ 871,635	$ 887,730
Securities held to maturity, fair value		115,849	137,030
Accrued interest receivable		24,494	24,481
FHLB and FRB stock		19,085	17,406
Carrying Amount [Member] | Level 1 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents		146,347	124,442
Accrued interest receivable		24,494	24,481
Non-maturity deposits		3,658,182	3,808,216
Short-term borrowings		202,000	185,000
Accrued interest payable		27,444	19,412
Carrying Amount [Member] | Level 2 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Securities available for sale		871,635	887,730
Securities held to maturity, fair value		128,271	148,156
Loans held for sale		2,099	1,370
Loans		4,387,562	4,373,541
FHLB and FRB stock		19,085	17,406
Time deposits		1,475,139	1,404,696
Long-term borrowings		124,687	124,532
Carrying Amount [Member] | Level 2 Inputs [Member] | Cash Flow Hedging [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		6,560	5,939
Carrying Amount [Member] | Level 2 Inputs [Member] | Interest Rate Products [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		45,274	37,517
Derivative instruments, liabilities		45,275	37,519
Carrying Amount [Member] | Level 2 Inputs [Member] | Mortgage Banking [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		154	50
Derivative instruments, liabilities		9	2
Carrying Amount [Member] | Level 3 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Loans	[1]	29,954	37,516
Long-lived assets held for sale		629	629
Estimated Fair Value [Member] | Level 1 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents		146,347	124,442
Accrued interest receivable		24,494	24,481
Non-maturity deposits		3,658,182	3,808,216
Short-term borrowings		202,000	185,000
Accrued interest payable		27,444	19,412
Estimated Fair Value [Member] | Level 2 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Securities available for sale		871,635	887,730
Securities held to maturity, fair value		115,849	137,030
Loans held for sale		2,099	1,370
Loans		4,186,818	4,143,918
FHLB and FRB stock		19,085	17,406
Time deposits		1,467,809	1,398,352
Long-term borrowings		126,764	128,363
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		6,560	5,939
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		45,274	37,517
Derivative instruments, liabilities		45,275	37,519
Estimated Fair Value [Member] | Level 2 Inputs [Member] | Mortgage Banking [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative instruments, assets		154	50
Derivative instruments, liabilities		9	2
Estimated Fair Value [Member] | Level 3 Inputs [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Loans	[1]	29,954	37,516
Long-lived assets held for sale		$ 629	$ 629
[1] Comprised of collateral dependent loans.

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Non-Maturity Deposits Fair Value Disclosure

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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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Fair value portion of assets classified as held for sale.

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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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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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