EQUITY COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

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

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

	Three months ended September 30,				Nine months ended September 30,
	2020		2019		2020		2019
Restricted units	$	30,036	$	21,430	$	86,804	$	66,226
Restricted units with a market condition	300		911		4,729		2,702
Options	—		52		43		4,310
Phantom shares	—		—		—		736
Equity-based compensation expense	$	30,336	$	22,393	$	91,576	$	73,974

Summary of unvested restricted units' activity

The following table presents unvested restricted units' activity:

	Restricted Units	Weighted Average Grant Date Fair Value Per Unit
Balance - January 1, 2020	16,810,473	$	20.07
Granted	3,716,355	36.52
Vested	(3,990,212)	19.45
Forfeited	(220,421)	23.24
Balance - September 30, 2020	16,316,195	$	23.97

The following table presents the unvested market condition awards' activity:

	Market Condition Awards Units	Weighted Average Grant Date Fair Value Per Unit
Balance - January 1, 2020	1,333,334	$	9.30
Granted	—	—
Vested	(666,667)	10.92
Forfeited	—	—
Balance - September 30, 2020	666,667	$	7.68

Summary of unvested options activity

A summary of options activity during the nine months ended September 30, 2020 is presented below:

	Options	Weighted Average Exercise Price		Weighted Average Remaining Life (in years)	Aggregate Intrinsic Value
Balance - January 1, 2020	13,426,870	$	18.99	4.3	$	224,260
Granted	—	—		—	—
Exercised	(4,382,165)	18.98		—	—
Expired	—	—		—	—
Forfeited	—	—		—	—
Balance - September 30, 2020	9,044,705	$	18.99	3.6	$	193,831
Exercisable at September 30, 2020	9,044,705	$	18.99	3.6	$	193,831