Fair Value (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 207,433,000	$ 219,180,000
Investments, Fair Value Disclosure	0	0
Mortgage loans held for sale	1,900,000	9,400,000
Mortgage IRLCs	100,000	300,000
Investment securities	1,742,123,000	1,754,140,000
Loans Held-for-sale, Fair Value Disclosure	1,928,000	9,387,000
Impaired Loan Fair Value	4,889,000	1,103,000
Other Assets, Fair Value Disclosure	6,910,287,000	6,783,848,000
Loans Receivable, Fair Value Disclosure	6,917,206,000	6,794,671,000
Time deposits	615,544,000	714,307,000
Other Liabilities, Fair Value Disclosure	5,280,000	1,465,000
Deposits, Fair Value Disclosure	620,824,000	715,772,000
Short Term Borrowings Fair Value	189,493,000	238,786,000
Subordinated Debt Obligations, Fair Value Disclosure	178,812,000	207,912,000
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	0	262,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	207,433,000	219,180,000
Mortgage IRLCs	0	0
Other Liabilities, Fair Value Disclosure	5,280,000	1,465,000
Deposits, Fair Value Disclosure	5,280,000	1,465,000
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	102,000	333,000
Investment securities	1,742,123,000	1,754,140,000
Loans Held-for-sale, Fair Value Disclosure	1,928,000	9,387,000
Loans Receivable, Fair Value Disclosure	2,030,000	9,720,000
Time deposits	615,544,000	714,307,000
Deposits, Fair Value Disclosure	615,544,000	714,307,000
Short Term Borrowings Fair Value	189,493,000	238,786,000
Subordinated Debt Obligations, Fair Value Disclosure	178,812,000	207,912,000
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	0	0
Impaired Loan Fair Value	4,889,000	1,103,000
Other Assets, Fair Value Disclosure	6,910,287,000	6,783,848,000
Loans Receivable, Fair Value Disclosure	6,915,176,000	6,784,951,000
Fair Value, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	1,928,000	9,387,000
Mortgage IRLCs	102,000	333,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	1,928,000	9,387,000
Mortgage IRLCs	102,000	333,000
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	393,918,000	389,591,000
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	393,918,000	389,591,000
U S Government Sponsored Entities Asset Backed Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	784,863,000	854,463,000
U S Government Sponsored Entities Asset Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	784,863,000	854,463,000
Loans Receivable [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	1,622,000	1,952,000
Loans Receivable [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	0	0
Loans Receivable [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	1,622,000	1,952,000
Swap	1,622,000	1,952,000
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	0	0
Loans Receivable [Member] | Fair Value, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	1,622,000	1,952,000
Swap	1,622,000	1,952,000
Loans Receivable [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	1,622,000	1,952,000
Swap	1,622,000	1,952,000
Equity Securities [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	1,746,000	2,129,000
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	1,277,000	1,630,000
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	469,000	499,000
Equity Securities [Member] | Fair Value, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	1,746,000	2,129,000
Equity Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	1,277,000	1,630,000
Equity Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	469,000	499,000
Swap [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	243,000	226,000
Swap [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	0	262,000
Swap [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	243,000	226,000
Swap [Member] | Fair Value, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	243,000	226,000
Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	243,000	226,000
Corporate Debt Securities
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	16,162,000	11,412,000
Corporate Debt Securities | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	16,162,000	11,412,000
Collateralized Loan Obligations | Fair Value, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	509,058,000	498,674,000
Collateralized Loan Obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	509,058,000	498,674,000
US Government Corporations and Agencies Securities | Fair Value, Recurring [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	38,122,000
US Government Corporations and Agencies Securities | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investments, Fair Value Disclosure	38,122,000
Reported Value Measurement [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	207,433,000	219,180,000
Mortgage IRLCs	102,000	333,000
Investment securities	1,742,123,000	1,754,140,000
Loans Held-for-sale, Fair Value Disclosure	1,928,000	9,387,000
Impaired Loan Fair Value	4,889,000	1,103,000
Other Assets, Fair Value Disclosure	7,012,366,000	6,777,102,000
Loans Receivable, Fair Value Disclosure	7,019,285,000	6,787,925,000
Time deposits	613,222,000	711,660,000
Other Liabilities, Fair Value Disclosure	5,280,000	1,465,000
Deposits, Fair Value Disclosure	618,502,000	713,125,000
Short Term Borrowings Fair Value	189,493,000	238,786,000
Subordinated Debt Obligations, Fair Value Disclosure	188,551,000	188,210,000
Reported Value Measurement [Member] | Loans Receivable [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage IRLCs	1,622,000	1,952,000
Swap	1,622,000	1,952,000
Reported Value Measurement [Member] | Equity Securities [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	1,746,000	2,129,000
Reported Value Measurement [Member] | Swap [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	$ 243,000	$ 226,000