EQUITY COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of equity-based compensation expense, net of assumed forfeitures

Equity-based compensation expense, net of forfeitures is included in the following table:

	For the Three Months Ended March 31,
	2017		2016
Restricted units	$	11,219	$	4,761
Options	3,482		3,913
Phantom units	388		499
Equity-based compensation expense	$	15,089	$	9,173

Summary of unvested restricted units' activity

The following table presents unvested restricted units’ activity during the three months ended March 31, 2017:

	Restricted Units		Weighted Average Grant Date Fair Value Per Unit
Balance - January 1, 2017	8,058,372		$	16.38
Granted	7,865,027		18.61
Vested	(492,572	)	12.86
Forfeited	(359,956	)	18.50
Balance - March 31, 2017	15,070,871		$	17.88

Summary of unvested options activity

A summary of options activity during the three months ended March 31, 2017 is presented below:

	Options		Weighted Average Exercise Price		Weighted Average Remaining Life (in years)	Aggregate Intrinsic Value
Balance - January 1, 2017	22,101,939		$	19.00	7.35
Granted	—		—		—
Vested	(313,875	)	19.00		0.35
Forfeited	(453,375	)	19.00		—
March 31, 2017	21,334,689		$	18.99	7.10	$	—
Exercisable at March 31, 2017	389,575		$	19.00	0.35	$	—

Summary of unvested phantom units activity

A summary of unvested phantom unit activity during the three months ended March 31, 2017 is presented below:

	Phantom Units		Weighted Average Grant Date Fair Value Per Unit
Balance - January 1, 2017	266,138		$	19.00
Vested	—		—
Forfeited	(1,099	)	19.00
Balance - March 31, 2017	265,039		$	19.00