Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
STOCK-BASED COMPENSATION - Restricted Stock Unit Activity (Details) - Restricted Stock Unit Awards [Member]
9 Months Ended
Sep. 30, 2018
$ / shares
shares
Shares of Restricted Stock Units [Roll Forward]  
Outstanding at beginning of period (in shares) | shares 387,702
Granted (in shares) | shares 151,908
Forfeited (in shares) | shares (48,631)
Vested (in shares) | shares (92,874)
Outstanding at end of period (in shares) | shares 398,105
Weighted Average Grant Date Price per Share [Abstract]  
Outstanding at beginning of period (in dollars per share) | $ / shares $ 11.39
Granted (in dollars per share) | $ / shares 12.45
Forfeited (in dollars per share) | $ / shares 10.88
Vested (in dollars per share) | $ / shares 11.85
Outstanding at end of period (in dollars per share) | $ / shares $ 11.72