STOCKHOLDERS' EQUITY - Summary of Restricted Stock and Performance Shares (Details)	3 Months Ended
	Mar. 31, 2017 $ / shares shares
Restricted Stock [Member]
Number of Shares
Unvested restricted stock awards, Beginning balance (in shares) | shares	532,294
Granted (in shares) | shares	244,205
Vested (in shares) | shares	(122,061)
Forfeited (in shares) | shares	(25,838)
Unvested restricted stock awards, Ending balance (in shares) | shares	628,600
Weighted Average Grant Date Fair Value (in usd per share)
Unvested restricted stock awards, Beginning balance (in dollars per share) | $ / shares	$ 9.98
Granted (in dollars per share) | $ / shares	14.21
Vested (in dollars per share) | $ / shares	10.83
Forfeited (in dollars per share) | $ / shares	9.39
Unvested restricted stock awards, Ending balance (in dollars per share) | $ / shares	$ 11.48
Performance Stock [Member]
Number of Shares
Unvested restricted stock awards, Beginning balance (in shares) | shares	332,092
Granted (in shares) | shares	181,067
Vested (in shares) | shares	0
Forfeited (in shares) | shares	(112,434)
Unvested restricted stock awards, Ending balance (in shares) | shares	400,725
Weighted Average Grant Date Fair Value (in usd per share)
Unvested restricted stock awards, Beginning balance (in dollars per share) | $ / shares	$ 11.73
Granted (in dollars per share) | $ / shares	14.36
Vested (in dollars per share) | $ / shares	0.00
Forfeited (in dollars per share) | $ / shares	11.65
Unvested restricted stock awards, Ending balance (in dollars per share) | $ / shares	$ 12.94