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Capital Structure (Tables)
3 Months Ended
Sep. 30, 2016
Capital Stucture [Abstract]  
Number Of Shares, Net Of Treasury
  September 30,   September 301  
  2016   2015  
 
Number of shares, net of treasury:        
Statement of changes in equity 52,521,345   47,322,702  
Less: Non-vested equity shares that have not vested (Note 12) (904,356 ) (589,447 )
Number of shares, net of treasury excluding non-vested        
equity shares that have not vested 51,616,989   46,733,255