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Shareholders' Equity (Narrative) (Details) - $ / shares
6 Months Ended
Jun. 30, 2015
May. 14, 2015
Shareholders' Equity [Abstract]    
Dividend declaration date May 14, 2015  
Special cash dividend, amount per share   $ 2.60
Dividend record date Jun. 19, 2015  
Percent of closing stock price   36.00%