EQUITY COMPENSATION (Tables)

6 Months Ended

Jun. 30, 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 June 30,				For the Six Months Ended June 30,
	2017		2016		2017		2016
Restricted units	$	14,601	$	4,684	$	25,818	$	9,448
Options	3,931		4,547		7,413		8,460
Phantom units	385		305		775		801
Equity-based compensation expense	$	18,917	$	9,536	$	34,006	$	18,709

Summary of unvested restricted units' activity

The following table presents unvested restricted units’ activity during the six months ended June 30, 2017:

	Restricted Units		Weighted Average Grant Date Fair Value Per Unit
Balance - January 1, 2017	8,058,372		$	16.38
Granted	7,944,144		18.61
Vested	(1,757,514	)	16.48
Forfeited	(388,694	)	18.40
Balance - June 30, 2017	13,856,308		$	17.58

Summary of unvested options activity

A summary of options activity during the six months ended June 30, 2017 is presented below:

	Options		Weighted Average Exercise Price		Weighted Average Remaining Life (in years)	Aggregate Intrinsic Value
Balance - January 1, 2017	22,232,134		$	19.00	7.35
Granted	—		—		—
Exercised	(54,500	)	19.00		—
Expired	(389,575	)	19.00		—
Forfeited	(633,033	)	19.00		—
Balance - June 30, 2017	21,155,026		$	18.99	6.87	$	—
Exercisable at June 30, 2017	7,151,023		$	19.00	6.86	$	—

Summary of unvested phantom units activity

A summary of unvested phantom unit activity during the six months ended June 30, 2017 is presented below:

	Phantom Units		Weighted Average Grant Date Fair Value Per Unit
Balance - January 1, 2017	266,138		$	19.00
Vested	(87,222	)	19.00
Forfeited	(7,036	)	19.00
Balance - June 30, 2017	171,880		$	19.00