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Cash Dividends (Narratives) (Details) - $ / shares
Apr. 26, 2017
Feb. 15, 2017
Nov. 17, 2016
Aug. 16, 2016
May 18, 2016
Feb. 16, 2016
Distributions            
Dividend declared per common stock (in dollars per share)   $ 0.1200 $ 0.1200 $ 0.0950 $ 0.0950 $ 0.1875
Subsequent Event            
Distributions            
Dividend declared per common stock (in dollars per share) $ 0.12