Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Impact of Adoption Reflected in the Consolidated Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
Allowance for loan and lease losses	$ 318,882	$ 307,907
Reserve for unfunded lending commitments	$ 24,053	$ 28,894	$ 33,309	$ 29,334