Derivatives (Summary Of Types Of Derivatives, Separately By Assets And Liabilities And Fair Value Of Derivatives) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 14,829	$ 177,423
Derivative Liability	295,222	9,675
Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Asset Derivatives	24	4,641
Derivative Liability	2,290
Interest rate forward sales commitments
Derivatives, Fair Value [Line Items]
Asset Derivatives	9,740	615
Derivative Liability	5	699
Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives	4,479	171,827
Derivative Liability	282,087	8,671
Interest rate contracts | Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Asset Derivatives	24	4,641
Derivative Liability	$ 2,290	$ 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Interest rate contracts | Future
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 0	$ 0
Derivative Liability	$ 10,359	$ 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Interest rate contracts | Interest rate forward sales commitments
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 9,740	$ 615
Derivative Liability	$ 5	$ 699
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Interest rate contracts | Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 4,479	$ 171,827
Derivative Liability	$ 282,087	$ 8,671
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Foreign currency derivatives
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 586	$ 340
Derivative Liability	$ 481	$ 305
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities