XML 81 R69.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stockholder's Equity (Details 4) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Class of Stock [Line Items]        
Dividends declared and paid per common share (in USD per share) $ 0.87 $ 0.87 $ 1.74 $ 1.74
Common stock cash dividends     $ 647,098 $ 634,296
Total dividends paid     $ 670,450 $ 660,355
Series I Preferred Stock        
Class of Stock [Line Items]        
Dividends declared and paid per preferred share (in USD per share)     $ 1.625 $ 1.625
Preferred stock cash dividends     $ 23,352 $ 23,360
Series J Preferred Stock        
Class of Stock [Line Items]        
Dividends declared and paid per preferred share (in USD per share)     $ 0 $ 0.2347
Preferred stock cash dividends     $ 0 $ 2,699