Quarterly report pursuant to Section 13 or 15(d)

EARNINGS PER SHARE (Details)

v3.10.0.1
EARNINGS PER SHARE (Details) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]        
Earnings per share - basic and diluted (in dollars per share) $ 0.30 $ 0.25 $ 0.52 $ 0.43
Common stock        
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]        
Earnings per share - basic and diluted (in dollars per share) 0.30 0.25 0.52 0.43
Restricted shares of common stock        
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]        
Earnings per share - basic and diluted (in dollars per share) $ 0.29 $ 0.24 $ 0.55 $ 0.41