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Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Millions
Jun. 27, 2019
Apr. 25, 2019
Mar. 31, 2019
Aug. 01, 2018
Subsequent Event [Line Items]        
Cash Dividends, Approved     $ 0.53125  
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Dividend approved and declared (in dollars per share) $ 0.52      
Series A Cumulative Redeemable Perpetual Preferred Shares [Member]        
Subsequent Event [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage     8.50%  
Common Stock [Member]        
Subsequent Event [Line Items]        
Stock Repurchase Program, Authorized Amount       $ 200
Common Stock [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Stock Repurchase Program, Authorized Amount   $ 200