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EARNINGS PER SHARE (Tables)
6 Months Ended
Jun. 30, 2018
EARNINGS PER SHARE  
Schedule of reconciliation of outstanding weighted average shares
    Three months ended
June 30
    Six months ended
June 30
 
(In thousands)   2018     2017     2018     2017  
Net income available for stockholders:   $ 8,990     $ 6,119     $ 16,599     $ 11,380  
Less: Adjustments for earnings attributable to participating securities     (246 )     (203 )     (465 )     (368 )
Net income used in calculating earnings per share   $ 8,744     $ 5,916     $ 16,134     $ 11,012  
                                 
Weighted average shares outstanding (including participating securities)     34,561       34,936       34,584       34,934  
Adjustment for participating securities     (953 )     (1,116 )     (995 )     (1,151 )
Shares used in calculating basic and diluted earnings per share     33,608       33,820       33,589       33,783