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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Statement of Stockholders' Equity [Abstract]      
Cash dividends declared per common share (in dollars per share) $ 0.70 $ 0.62 $ 0.545
Common stock issued, price per share (in dollars per share) $ 32.45 $ 34.32 $ 35.87