Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Details)

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STOCKHOLDERS' EQUITY (Details) - Time Lapse Restricted Shares and Restricted Stock Units - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Time lapse restricted stock:        
Pre-tax compensation expense $ 3,031 $ 3,049 $ 9,406 $ 9,429
Tax benefit (1,173) (1,180) (3,640) (3,649)
Restricted stock expense, net of tax $ 1,858 $ 1,869 $ 5,766 $ 5,780