Fair Value Measurements (Schedule Of Estimates Of Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Estimated Fair Value	$ 1,347,657	$ 1,338,137
Marketable equity securities	30,681	30,966
Net loans	4,069,478	4,103,178
Accrued interest receivable	21,759	20,290
Derivative assets	1,654
Liabilities:
Deposits	5,055,801	4,934,262
Carrying Amount
Assets:
Cash and cash equivalents	318,682	156,276
Estimated Fair Value	1,347,657	1,338,137
Marketable equity securities	7,253	7,538
Net loans	4,069,478	4,103,178
Accrued interest receivable	21,759	20,290
Derivative assets	68,216	60,527
Liabilities:
Deposits	5,055,801	4,934,262
Short-term debt	304,941	334,856
Long-Term Debt, Fair Value	150,000	100,000
Accrued interest payable	5,575	4,301
Derivative liabilities	55,445	48,578
Fair Value
Assets:
Cash and cash equivalents	318,682	156,276
Estimated Fair Value	1,347,657	1,338,137
Marketable equity securities	7,253	7,538
Net loans	3,890,421	3,922,638
Accrued interest receivable	21,759	20,290
Derivative assets	68,216	60,527
Liabilities:
Deposits	4,780,020	4,617,487
Short-term debt	304,941	334,856
Long-Term Debt, Fair Value	148,696	99,928
Accrued interest payable	5,575	4,301
Derivative liabilities	55,445	48,578
Level 1
Assets:
Cash and cash equivalents	318,682	156,276
Estimated Fair Value	0	0
Marketable equity securities	2,930	3,093
Net loans	0	0
Accrued interest receivable	0	0
Derivative assets	0	0
Liabilities:
Deposits	3,696,729	3,591,458
Short-term debt	0	0
Long-Term Debt, Fair Value	0	0
Accrued interest payable	0	4,301
Derivative liabilities	0	0
Level 2
Assets:
Cash and cash equivalents	0	0
Estimated Fair Value	1,345,808	1,336,266
Marketable equity securities	4,323	4,445
Net loans	0	0
Accrued interest receivable	21,759	20,290
Derivative assets	68,216	60,527
Liabilities:
Deposits	1,083,291	1,026,029
Short-term debt	304,941	334,856
Long-Term Debt, Fair Value	148,696	99,928
Accrued interest payable	5,575	0
Derivative liabilities	55,445	48,578
Level 3
Assets:
Cash and cash equivalents	0	0
Estimated Fair Value	1,849	1,871
Marketable equity securities	0	0
Net loans	3,890,421	3,922,638
Accrued interest receivable	0	0
Derivative assets	0	0
Liabilities:
Deposits	0	0
Short-term debt	0	0
Long-Term Debt, Fair Value	0	0
Accrued interest payable	0	0
Derivative liabilities	$ 0	$ 0