Fair Value (Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	$ 144,604	$ 169,112
Investment securities	1,376,606	1,455,660
Federal Home Loan Bank Stock	43,388	50,086
Federal Reserve Bank Stock	8,225	8,225
Loans Held-for-sale, Fair Value Disclosure	6,441	4,148
Impaired Loan Fair Value	6,247	3,574
Other loans	5,493,865	5,247,021
Loans receivable, net	5,506,681	5,254,837
Time deposits	1,089,966	1,035,093
Other	5,186	1,269
Total deposits	1,095,152	1,036,362
Short-term borrowings	179,818	391,289
Long-term debt	397,640	504,503
Subordinated debentures/notes	12,987	13,370
Other Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	1,902	1,935
Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	226	226
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	144,604	169,112
Investment securities	1,382,907	1,449,078
Loans Held-for-sale, Fair Value Disclosure	6,441	4,148
Derivative Assets	128	94
Impaired Loan Fair Value	6,247	3,574
Other loans	5,562,261	5,314,679
Loans receivable, net	5,575,077	5,322,495
Time deposits	1,090,117	1,033,476
Other	5,186	1,269
Total deposits	1,095,303	1,034,745
Short-term borrowings	179,818	391,289
Long-term debt	400,000	500,000
Subordinated debentures/notes	15,000	15,000
Reported Value Measurement [Member] \| Other Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	1,902	1,935
Reported Value Measurement [Member] \| Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	226	226
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	128	94
Impaired Loan Fair Value		3,574
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	144,604	169,112
Derivative Assets	0	0
Other	5,186	1,269
Total deposits	5,186	1,269
Fair Value, Inputs, Level 1 [Member] \| Other Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	1,478	1,518
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	1,376,606	1,455,660
Loans Held-for-sale, Fair Value Disclosure	6,441	4,148
Derivative Assets	128	94
Loans receivable, net	6,569	4,242
Time deposits	1,089,966	1,035,093
Total deposits	1,089,966	1,035,093
Short-term borrowings	179,818	391,289
Long-term debt	397,640	504,503
Subordinated debentures/notes	12,987	13,370
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	0	0
Impaired Loan Fair Value	6,247	3,574
Other loans	5,493,865	5,247,021
Loans receivable, net	5,500,112	5,250,595
Fair Value, Inputs, Level 3 [Member] \| Other Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	424	417
Fair Value, Inputs, Level 3 [Member] \| Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	$ 226	$ 226

Impaired Loan Fair Value

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Short Term Borrowings Fair Value

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- Definition

Time Deposits Fair Value

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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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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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- Definition

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Fair value portion of other assets.

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Fair value portion of other liabilities.

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