Investment Securities (Amortized Cost And Estimated Fair Value Of Investments In Debt Securities By Contractual Maturity) (Details) $ in Thousands	Mar. 31, 2023 USD ($)
U.S. Government Sponsored Entities Asset-Backed Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 805,466
Securities Available-for-Sale, Total Fair value	$ 730,261
Debt Securities, Available-for-Sale, Weighted Average Yield	1.90%
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	$ 275,512
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	$ 278,622
Debt Securities, Available-for-sale, Maturity, after Five Through Ten Years, Weighted Average Yield	3.69%
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost	$ 144,606
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	$ 131,102
Debt Securities, Available-for-sale, Maturity, after 10 Years, Weighted Average Yield	3.12%
Debt Securities, Available-for-sale, Amortized Cost	$ 422,398
Securities Available-for-Sale, Total Fair value	$ 412,006
Debt Securities, Available-for-Sale, Weighted Average Yield	3.49%
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five	$ 2,280
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five	$ 2,282
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five	2.97%
Corporate Debt Securities
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	$ 17,650
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	$ 15,401
Debt Securities, Available-for-sale, Maturity, after Five Through Ten Years, Weighted Average Yield	3.89%
Collateralized Loan Obligations
Schedule of Investments [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 535,436
Securities Available-for-Sale, Total Fair value	$ 519,428
Debt Securities, Available-for-Sale, Weighted Average Yield	6.51%
US Government Corporations and Agencies Securities
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five	$ 39,000
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five	$ 37,344
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five	2.37%

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