Net Income Per Common Share (Schedule Of Earnings Per Share) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net Income Per Common Share [Abstract]
Average common shares outstanding during the period for basic computation	262,213	258,773	262,089	256,051
Effect of dilutive securities:
Forward equity sale agreement		223		216
Employee stock-based compensation	541	441	552	496
Average common shares outstanding during the period for diluted computation	262,754	259,437	262,641	256,763