XML 18 R8.htm IDEA: XBRL DOCUMENT v3.8.0.1
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Statement of Stockholders' Equity [Abstract]    
Cash dividend declared, per share $ 0.19 $ 0.13