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Subsequent Events Subsequent Event (Details) - $ / shares
1 Months Ended 3 Months Ended
May 08, 2018
Mar. 31, 2018
Subsequent Event [Line Items]    
Common Stock, Dividends, Per Share, Declared   $ 0.00
Subsequent Event [Member]    
Subsequent Event [Line Items]    
Dividends Payable, Date Declared May 08, 2018  
Common Stock, Dividends, Per Share, Declared $ 0.41  
Dividends Payable, Date to be Paid Jun. 15, 2018  
Dividends Payable, Date of Record May 18, 2018