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Subsequent Events (Details) - $ / shares
3 Months Ended 12 Months Ended
Jul. 19, 2016
Mar. 31, 2016
Jun. 30, 2016
Jun. 30, 2015
Subsequent Event [Line Items]        
Common stock, dividends declared (in dollars per share)     $ 0.37 $ 0.36
2016 Annual Dividend [Member]        
Subsequent Event [Line Items]        
Common stock, dividends declared (in dollars per share)   $ 0.37    
Subsequent Event [Member] | 2016 Q4 Dividend [Member]        
Subsequent Event [Line Items]        
Dividends payable, date declared Jul. 19, 2016      
Common stock, dividends declared (in dollars per share) $ 0.095      
Dividends payable, date of record Aug. 15, 2016      
Dividends payable, date paid Aug. 31, 2016      
Subsequent Event [Member] | 2017 Annual Dividend [Member]        
Subsequent Event [Line Items]        
Common stock, dividends declared (in dollars per share) $ 0.38