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Equity Common Stock Dividends (Details) - $ / shares
3 Months Ended
Feb. 24, 2017
Mar. 31, 2017
Mar. 31, 2016
Common Stock Dividends [Abstract]      
Common Stock, Dividends, Per Share, Cash Paid   $ 0.12  
Common Stock, Dividends, Per Share, Declared $ 0.12 $ 0.12 $ 0.11