XML 19 R8.htm IDEA: XBRL DOCUMENT v3.8.0.1
UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Statement of Stockholders' Equity [Abstract]    
Dividends per share (in USD per share) $ 0.03133 $ 0.03