Consolidated Statements Of Equity (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Consolidated Statements Of Equity (Parenthetical) [Abstract]
Dividend declared per common share	$ 0.2682	$ 0.2507	$ 0.2507	$ 0.2507	$ 0.2343	$ 0.2343
Issuance of common stock from private placement, shares						21,661,095
Issuance of common stock from stock purchase contracts , shares	6,700,000					2,335,654
Issuance of common stock under dividend reinvestment plan, shares	127,749	90,654	98,904	104,637	100,148	86,969
Issuance of common stock from forward equity sale agreement , shares	92,993
Repurchase of stock, shares	176	364	76,105	44	100	81,722
Equity compensation plan, shares	5,337	4,874	192,407	6,088	4,594	223,495
Exercise of stock options, shares	54,672	22,786	20,201	4,270	3,411	56,106