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Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (Unaudited) - $ / shares
6 Months Ended
Jun. 30, 2015
Statement Consolidated Statements Of Changes In Shareholders Equity Parenthetical Unaudited [Abstract]  
Cash dividend declared per share $ 0.12
Treasury shares reissued 1
Treasury shares purchased shares, net of reissued 9,999