Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

v3.20.4
Stockholders' Equity (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
Jan. 15, 2021
$ / shares
Jul. 16, 2018
Mar. 08, 2018
period
$ / shares
Dec. 31, 2020
USD ($)
Vote
item
$ / shares
shares
Dec. 31, 2019
$ / shares
shares
Dec. 31, 2018
shares
Feb. 23, 2021
USD ($)
Preferred stock, additional shares authorized       42,700,000      
Preferred stock shares authorized         50,000,000    
Preferred shares issued         0    
Preferred shares outstanding         0    
Liquidation price per share | $ / shares     $ 25        
Dividend rate   7.00%          
Failure to pay cash dividends, number of periods | period     4        
Potential increase in dividend rate, over four dividend periods     2.00%        
Subsequent event              
Preferred stock, dividends paid per share | $ / shares $ 0.44            
Stock Buyback Program              
Number of shares repurchased         0 0  
Remaining authorized repurchase amount | $       $ 606.0      
Stock Buyback Program | Subsequent event              
Share repurchase authorized amount | $             $ 2,230.0
Series A common stock              
Common Stock, Par or Stated Value Per Share | $ / shares       $ 0.01 $ 0.01    
Number Of Votes | Vote       1      
Common Stock, Capital Shares Reserved for Future Issuance       1,000      
Series A common stock | Stock Buyback Program              
Number of shares repurchased       0      
Series B common stock              
Common Stock, Par or Stated Value Per Share | $ / shares       $ 0.01 0.01    
Number Of Votes | Vote       10      
Common Stock Shares Received In Exchange For One Share Of Series B | item       1      
Series B common stock | Stock Buyback Program              
Number of shares repurchased       0      
Series C common stock              
Common Stock, Par or Stated Value Per Share | $ / shares       $ 0.01 $ 0.01    
Number Of Votes | Vote       0      
Common Stock, Capital Shares Reserved for Future Issuance       3,300,000      
Series C common stock | Stock Buyback Program              
Number of shares repurchased       4,100,000      
Value of stock repurchased | $       $ 596.7      
Series A Cumulative Redeemable Preferred Stock              
Preferred stock, shares authorized       7,300,000      
Preferred shares, shares issued       7,193,631      
Preferred shares, shares outstanding       7,193,631