CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares			1 Months Ended
	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2021
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000	100,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000	500,000,000
Common stock, shares issued (in shares)	219,043,105	215,593,401	219,043,105
Common stock, shares outstanding (in shares)	219,043,105	215,593,401	219,043,105
Series E Cumulative Redeemable Preferred Stock
Preferred stock, Cumulative Redeemable Preferred Stock, dividend rate (as a percent)		6.95%	6.95%
Preferred stock, Cumulative Redeemable Preferred Stock, shares issued (in shares)	0	4,600,000	0
Preferred stock, Cumulative Redeemable Preferred Stock, shares outstanding (in shares)	0	4,600,000	0
Preferred stock, Cumulative Redeemable Preferred Stock, liquidation preference (in dollars per share)		$ 25.00
Series F Cumulative Redeemable Preferred Stock
Preferred stock, Cumulative Redeemable Preferred Stock, dividend rate (as a percent)	6.45%	6.45%
Preferred stock, Cumulative Redeemable Preferred Stock, shares issued (in shares)	3,000,000	3,000,000	3,000,000
Preferred stock, Cumulative Redeemable Preferred Stock, shares outstanding (in shares)	3,000,000	3,000,000	3,000,000
Preferred stock, Cumulative Redeemable Preferred Stock, liquidation preference (in dollars per share)	$ 25.00	$ 25.00	$ 25.00
Series G Cumulative Redeemable Preferred Stock
Preferred stock, Cumulative Redeemable Preferred Stock, shares issued (in shares)	2,650,000	0	2,650,000
Preferred stock, Cumulative Redeemable Preferred Stock, shares outstanding (in shares)	2,650,000	0	2,650,000
Preferred stock, Cumulative Redeemable Preferred Stock, liquidation preference (in dollars per share)	$ 25.00		$ 25.00
Series H Cumulative Redeemable Preferred Stock
Preferred stock, Cumulative Redeemable Preferred Stock, dividend rate (as a percent)	6.125%
Preferred stock, Cumulative Redeemable Preferred Stock, shares issued (in shares)	4,600,000	0	4,600,000
Preferred stock, Cumulative Redeemable Preferred Stock, shares outstanding (in shares)	4,600,000	0	4,600,000
Preferred stock, Cumulative Redeemable Preferred Stock, liquidation preference (in dollars per share)	$ 25.00		$ 25.00