XML 18 R7.htm IDEA: XBRL DOCUMENT v3.19.2
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (Unaudited) - $ / shares
3 Months Ended 6 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Statement Of Stockholders Equity [Abstract]        
Dividends on common stock per share $ 0.10 $ 0.10 $ 0.10 $ 0.10