XML 17 R83.htm IDEA: XBRL DOCUMENT v3.20.1
Stockholders' Equity (Narrative) (Details)
 1 Months Ended 3 Months Ended 199 Months Ended
Mar. 11, 2020
$ / shares
Mar. 02, 2020
USD ($)
Feb. 28, 2020
$ / shares
shares
Feb. 14, 2020
$ / shares
Apr. 15, 2013
$ / shares
shares
Mar. 31, 2020
USD ($)
director
quarter
$ / shares
shares
Mar. 31, 2020
USD ($)
director
quarter
$ / shares
shares
Mar. 31, 2019
USD ($)
$ / shares
Mar. 31, 2020
USD ($)
$ / shares
shares
Dec. 31, 2019
$ / shares
shares
Oct. 15, 2019
shares
Aug. 16, 2019
USD ($)
Dec. 31, 2013
shares
Aug. 31, 2005
shares
Stockholders' Equity                            
Common stock, cash dividends declared (in dollars per share) | $ / shares $ 0.20             $ 0.20            
Proceeds from issuance of redeemable preferred stock | $             $ 275,000,000 $ 0            
Dividends and dividend equivalents declared and unpaid | $           $ 0 $ 0 $ 90,353,000 $ 0          
Aggregate number of shares of common stock authorized (in shares) | shares           874,300,000 874,300,000   874,300,000 886,950,000        
Number of shares authorized to be repurchased under the Repurchase Program (in shares) | shares                         10,000,000.0 4,000,000.0
Number of remaining shares authorized to be repurchased under the Repurchase Program (in shares) | shares           6,616,355 6,616,355   6,616,355          
DRSPP                            
Stockholders' Equity                            
Aggregate number of shares of common stock authorized (in shares) | shares                     9,000,000.0      
Shares of common stock authorized and available for issuance (in shares) | shares           8,800,000 8,800,000   8,800,000          
Common shares issued through DRSPP (in shares) | shares             106,949   34,485,717          
Net proceeds from shares issued through DRSPP | $             $ 691,979   $ 287,300,000          
Series B Preferred Stock                            
Stockholders' Equity                            
Preferred Stock, dividend rate             7.50% 7.50%            
Preferred stock, shares issued | shares           8,000,000 8,000,000   8,000,000 8,000,000        
Preferred stock, par value (in dollars per share) | $ / shares           $ 0.01 $ 0.01   $ 0.01 $ 0.01        
Dividend declared per share, preferred stock (in dollars per share) | $ / shares       $ 0.46875       $ 0.46875            
Preferred Stock, Amount of Preferred Dividends in Arrears | $             $ 3,800,000              
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | $ / shares             $ 0.46875              
Series C Preferred Stock                            
Stockholders' Equity                            
Preferred Stock, dividend rate             6.50%              
Preferred stock, shares issued | shares           11,000,000 11,000,000   11,000,000          
Preferred stock, par value (in dollars per share) | $ / shares           $ 0.01 $ 0.01   $ 0.01          
Preferred Stock, Amount of Preferred Dividends in Arrears | $             $ 1,400,000              
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears | $ / shares             $ 0.12639              
Preferred Stock | Series B Preferred Stock                            
Stockholders' Equity                            
Preferred Stock, dividend rate         7.50%   7.50% 7.50%            
Preferred stock, shares issued | shares         8,000,000.0                  
Preferred stock, par value (in dollars per share) | $ / shares         $ 0.01                  
Preferred stock, liquidation preference (in dollars per share) | $ / shares         25.00 $ 25.00 $ 25.00   $ 25.00 $ 25        
Preferred stock, redemption price (in dollars per share) | $ / shares         $ 25.00                  
Maximum quarters without dividends to get voting rights, in quarters | quarter             6              
Number of additional directors that can be elected by preferred stock holders | director             2              
Minimum percentage of preferred shareholders required for approval (percent)         66.67%                  
Preferred Stock | Series C Preferred Stock                            
Stockholders' Equity                            
Preferred Stock, dividend rate     6.50%                      
Preferred stock, shares issued | shares     11,000,000.0                      
Preferred stock, par value (in dollars per share) | $ / shares     $ 0.01                      
Preferred stock, liquidation preference (in dollars per share) | $ / shares     25.00                      
Preferred stock, redemption price (in dollars per share) | $ / shares     $ 25.00                      
Maximum quarters without dividends to get voting rights, in quarters | quarter           6                
Number of additional directors that can be elected by preferred stock holders | director           2                
Shares reclassified to redeemable capital stock (in shares) | shares     12,650,000                      
Proceeds from issuance of redeemable preferred stock | $   $ 266,000,000.0                        
At The Market                            
Stockholders' Equity                            
At-the-market, maximum potential proceeds | $                       $ 400,000,000.0    
Number of shares issued (in shares) | shares             0              
Value remaining outstanding for future offerings | $           $ 390,000,000.0 $ 390,000,000.0   $ 390,000,000.0          
LIBOR | Preferred Stock | Series C Preferred Stock                            
Stockholders' Equity                            
Debt instrument, basis spread on variable rate     5.345%