Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

v3.19.3.a.u2
Subsequent Events (Details) - $ / shares
12 Months Ended
Jan. 22, 2020
Jan. 27, 2015
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Subsequent Event [Line Items]          
Dividends declared per share (in dollars per share)     $ 3.000 $ 3.000 $ 3.000
Series A Cumulative Redeemable Preferred Stock          
Subsequent Event [Line Items]          
Coupon rate percentage     7.375% 7.375%  
Preferred Stock | Series A Cumulative Redeemable Preferred Stock          
Subsequent Event [Line Items]          
Coupon rate percentage   7.375% 7.375%    
Subsequent event | Common Stock          
Subsequent Event [Line Items]          
Dividends declared per share (in dollars per share) $ 0.750        
Subsequent event | Depositary Shares | Series A Cumulative Redeemable Preferred Stock          
Subsequent Event [Line Items]          
Depositary stock, dividends declared per share (in dollars per share) $ 0.4609375        
Subsequent event | Preferred Stock | Series A Cumulative Redeemable Preferred Stock          
Subsequent Event [Line Items]          
Coupon rate percentage 7.375%