SHARE-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2019

SHARE-BASED COMPENSATION

Summary of entity's stock option activity

				Weighted
		Weighted		Average
		Average		Remaining	Aggregate
	Number	Exercise		Contractual	Intrinsic
	of Options	Price		Life	Value
				(Years)
Outstanding at January 1, 2019	5,186,025	$	18.42	8.0	$	2,910
Granted	453,808		5.19
Exercised	(131,966)		4.54
Expired/cancelled	(1,732,525)		17.40
Outstanding at September 30, 2019	3,775,342	$	17.57	7.6	$	26
Exercisable at September 30, 2019	1,670,724	$	21.25	7.1	$	0

Schedule of assumptions used to determine the valuation of granted options

Exercise price	$4.81 - $5.94
Expected volatility	49.12% - 49.47%
Expected dividend yield	0%
Risk-free rate for expected term	1.95% - 2.38%
Expected life (in years)	6.00

Summary of restricted stock units activity

		Weighted
		Average
	Number	Grant Date
	of RSUs	Fair Value
Nonvested at January 1,2019	1,869,029	$	21.67
Granted	5,908,924		5.30
Vested and issued	(349,849)		20.17
Cancelled /expired	(1,124,650)		19.13
Nonvested at September 30, 2019	6,303,454	$	6.78

Summary of restricted stock awards activity

	Number	Weighted
	of Shares	Average
	Subject to	Grant Date
	Restriction	Fair Value
Nonvested at January 1, 2019	43,355	$	20.91
Granted	186,969		4.51
Vested	(20,829)		22.20
Forfeited	(5,929)		21.63
Nonvested at September 30, 2019	203,566		5.69