Derivatives (Summary Of Types Of Derivatives And Gains (Losses) Recorded) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains (losses)	$ (9,285)	$ 44,979	$ 5,356
Foreign currency derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains (losses)	$ 141	$ 126	$ 2,856
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other income (loss)	Other income (loss)	Other income (loss)
Interest rate lock commitments | Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains (losses)	$ (169)	$ (4,609)	$ (23,503)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other income (loss)	Other income (loss)	Other income (loss)
Interest rate futures | Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains (losses)	$ (4,693)	$ (14,476)	$ 0
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other income (loss)	Other income (loss)	Other income (loss)
Interest rate forward sales commitments | Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains (losses)	$ 33	$ 47,689	$ 17,608
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other income (loss)	Other income (loss)	Other income (loss)
Interest rate swaps | Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains (losses)	$ (4,597)	$ 16,249	$ 8,395
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other income (loss)	Other income (loss)	Other income (loss)