Annual report pursuant to Section 13 and 15(d)

Stockholders??? Equity (Preferred Stock) (Narrative) (Details)

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Stockholders’ Equity (Preferred Stock) (Narrative) (Details)
3 Months Ended 12 Months Ended
Nov. 03, 2021
USD ($)
Dec. 30, 2019
USD ($)
Nov. 04, 2019
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
Dec. 31, 2021
USD ($)
item
$ / shares
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Class of Stock [Line Items]              
Shares Amount       $ 755,000,000 $ 755,000,000 $ 944,750,000  
Redeemable preferred stock, redemption price per share | $ / shares       $ 25.00 $ 25.00    
Preferred Redemption allocation         $ 6,434,000   $ 11,007,000
Proceeds from Issuance of Redeemable Preferred Stock             316,038,000
Distributions paid to noncontrolling interests per common unit | $ / shares       $ 1.05      
Distributions paid to noncontrolling interests — common units         64,287,000 30,683,000 30,683,000
Distributions to preferred stockholders         $ 46,624,000 48,186,000 $ 54,346,000
Number of quarterly dividends in arrearage before preferred stockholders can elect additional board members | item         6    
Number of additional board members the preferred stockholders can elect in the case of an excess arrearage of quarterly dividends | item         2    
Dividends in arrears         $ 0    
Series W Preferred Stock [Member]              
Class of Stock [Line Items]              
Cumulative preferred stock, dividend rate 5.20%       5.20%    
Shares Amount $ 189,800,000         189,750,000  
Series U Preferred Stock [Member]              
Class of Stock [Line Items]              
Cumulative preferred stock, dividend rate   5.75%          
Shares Amount   $ 230,000,000.0          
Series V Preferred Stock [Member]              
Class of Stock [Line Items]              
Cumulative preferred stock, dividend rate   5.70%          
Shares Amount   $ 110,000,000.0          
Series Z Preferred Stock [Member]              
Class of Stock [Line Items]              
Cumulative preferred stock, dividend rate     4.875%   4.875%    
Shares Amount     $ 325,000,000.0 $ 325,000,000 $ 325,000,000 $ 325,000,000  
Redeemable preferred stock, redemption price per share | $ / shares     $ 25.00        
Number of stock issued in sale | shares     13,000,000        
Non-callable period for Preferred Units     5 years        
Mandatory redemption | shares     0        
Proceeds from Issuance of Redeemable Preferred Stock     $ 316,000,000.0