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CONSOLIDATED CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Statement of Stockholders' Equity [Abstract]        
Common stock dividends (in dollars per share) $ 0.16 $ 0.16 $ 0.32 $ 0.32