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Consolidated Statement of Equity (Unaudited) (Parentheticals) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dividends per share/unit $ 0.17 $ 0.16 $ 0.51 $ 0.48