Investment Securities (Schedule Of Investment Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 1,259,498	$ 1,418,770
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	767	1,227
Securities Available-for-Sale, Gross Unrealized Holding Losses	89,559	87,155
Debt Securities, Available-for-sale	1,170,706	1,332,842
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	219,431	251,531
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	110	1,173
Securities Available-for-Sale, Gross Unrealized Holding Losses	17,414	11,520
Debt Securities, Available-for-sale	202,127	241,184
U.S. Government Sponsored Entities Asset-Backed Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	640,810	703,645
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	4	23
Securities Available-for-Sale, Gross Unrealized Holding Losses	69,975	68,193
Debt Securities, Available-for-sale	570,839	635,475
Collateralized Loan Obligations
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	378,546	443,112
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	602	31
Securities Available-for-Sale, Gross Unrealized Holding Losses	152	4,857
Debt Securities, Available-for-sale	378,996	438,286
Corporate Debt Securities
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	20,711	20,482
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	51
Securities Available-for-Sale, Gross Unrealized Holding Losses	2,018	2,585
Debt Securities, Available-for-sale	$ 18,744	$ 17,897