EQUITY-BASED COMPENSATION - Stock options (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($) $ / shares shares
Stock options
Equity-based compensation
Number of outstanding shares (in shares) | shares	470,000
Number of exercisable shares (in shares) | shares	470,000
Weighted average exercise price, outstanding (in dollars per share) | $ / shares	$ 9.75
Weighted average exercise price, exercisable (in dollars per share) | $ / shares	$ 9.75
Weighted Average Remaining Contractual Terms, outstanding	4 years 8 months 12 days
Weighted Average Remaining Contractual Terms, exercisable	4 years 8 months 12 days
Aggregate intrinsic value, outstanding | $	$ 1.6
Aggregate intrinsic value, exercisable | $	$ 1.6
Minimum
Equity-based compensation
Stock options term	5 years
Maximum
Equity-based compensation
Stock options term	10 years