Stock-Based Compensation and Directors Stock Purchase Plan (Summary Of The Status Of Nonvested Share Awards) (Details)	12 Months Ended
	Dec. 31, 2025 $ / shares shares
Nonvested Share Awards [Roll Forward]
Nonvested, share awards, beginning balance | shares	1,315,029
Granted, Shares | shares	315,896
Vested, Shares | shares	(280,218)
Forfeited, Shares | shares	(44,729)
Nonvested, share awards, ending balance | shares	1,305,978
Nonvested Weighted Average Grant Date Fair Value [Roll Forward]
Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 52.77
Granted, Weighted Average Grant Date Fair Value | $ / shares	61.91
Vested, Weighted Average Grant Date Fair Value | $ / shares	52.00
Forfeited, Weighted Average Grant Date Fair Value | $ / shares	54.11
Nonvested , Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 55.11