STOCK-BASED COMPENSATION (Details 5)	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Unvested Performance Shares [Rollforward]
Unvested, beginning of period (in shares) | shares	110,000
Granted (in shares) | shares	408,431
Vested (in shares) | shares	(209,526)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | shares	(7,376)
Unvested, end of period (in shares) | shares	301,529
Weighted average fair value per share, beginning of period (in dollars per share) | $ / shares	$ 17.48
Weighted average fair value per share, granted (in dollars per share) | $ / shares	13.63
Weighted average fair value, vested (in dollars per share) | $ / shares	25.84
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value | $ / shares	13.14
Weighted average fair value, end of period (in dollars per share) | $ / shares	$ 25.84
To Settle in Cash
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding at beginning of period, performance shares (in shares) | shares	311,528
Granted, performance shares (in shares) | shares	339,619
Paid/Issued, performance shares (in shares) | shares	(103,417)
Performance shares converted to cash | shares	2,474
Canceled, performance shares (in shares) | shares	(7,376)
Shares outstanding at end of period, performance shares (in shares) | shares	542,828
Total vested at end of period, performance shares (in shares) | shares	241,299
Weighted average fair value, outstanding at beginning of period, performance shares (in dollars per share) | $ / shares	$ 17.48
Weighted average fair value, granted, performance shares (in dollars per share) | $ / shares	15.28
Weighted average fair value, paid/issued, performance shares (in dollars per share) | $ / shares	17.48
Weighted Average Fair Value Performance Shares Converted to Cash | $ / shares	13.14
Weighted average fair value, canceled, performance shares (in dollars per share) | $ / shares	13.14
Weighted average fair value, outstanding at end of period, performance shares (in dollars per share) | $ / shares	25.84
Weighted average fair value, total vested at end of period, performance shares (in dollars per share) | $ / shares	$ 25.84
To Settle in Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding at beginning of period, performance shares (in shares) | shares	302,000
Granted, performance shares (in shares) | shares	340,925
Paid/Issued, performance shares (in shares) | shares	(96,500)
Performance shares converted to cash | shares	(2,474)
Canceled, performance shares (in shares) | shares	(7,376)
Shares outstanding at end of period, performance shares (in shares) | shares	536,575
Total vested at end of period, performance shares (in shares) | shares	235,046
Weighted average fair value, outstanding at beginning of period, performance shares (in dollars per share) | $ / shares	$ 25.59
Weighted average fair value, granted, performance shares (in dollars per share) | $ / shares	15.39
Weighted average fair value, paid/issued, performance shares (in dollars per share) | $ / shares	23.28
Weighted Average Fair Value Performance Shares Converted to Cash | $ / shares	13.14
Weighted average fair value, canceled, performance shares (in dollars per share) | $ / shares	13.14
Weighted average fair value, outstanding at end of period, performance shares (in dollars per share) | $ / shares	16.18
Weighted average fair value, total vested at end of period, performance shares (in dollars per share) | $ / shares	$ 18.62