Premises and Equipment (Components Of Premises And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Land	$ 91,072	$ 33,031
Buildings and improvements	288,189	203,519
Furniture, fixtures, and equipment	140,241	142,209
Software	110,726	105,355
Construction in progress and other	24,094	16,878
Total premises and equipment	654,322	500,992
Less: Accumulated depreciation and amortization	(315,352)	(324,976)
Premises and equipment, net	$ 338,970	$ 176,016
Building and Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	7 years
Building and Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	39 years
Office Equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	4 years
Office Equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years
Software | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Software | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	7 years