Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Restricted Stock Award and Unit Activity) (Details)

v3.10.0.1
STOCK-BASED COMPENSATION (Restricted Stock Award and Unit Activity) (Details) - Restricted Stock
9 Months Ended
Sep. 30, 2018
$ / shares
shares
Number of Unvested Restricted Shares  
Unvested shares, beginning balance (in shares) | shares 976,027
Granted (in shares) | shares 1,197,628
Vested (in shares) | shares (618,202)
Forfeited (in shares) | shares (32,633)
Unvested shares, ending balance (in shares) | shares 1,522,820
Weighted Average Grant Date Fair Value  
Unvested shares, beginning balance (in dollars per share) | $ / shares $ 18.71
Granted (in dollars per share) | $ / shares 9.45
Vested (in dollars per share) | $ / shares 17.77
Forfeited (in dollars per share) | $ / shares 17.31
Unvested shares, ending balance (in dollars per share) | $ / shares $ 11.84