Incentive Compensation / 401(k) Retirement Plan (Tables)

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Summary of Changes in Non-Vested Restricted Shares

A summary of the changes in our non-vested restricted shares for the year ended December 31, 2019 is presented below:

	Number of Shares		Weighted Average Grant Date Fair Value per Share
Non-vested at December 31, 2018	7,060,334		$	2.69
Granted	103,000		$	0.70
Vested	(2,648,390	)	$	3.22
Forfeited	(1,000,409	)	$	2.45
Non-vested at December 31, 2019	3,514,535		$	2.30

Summary of Significant Assumptions Used to Calculate Fair Value

he following table summarizes the significant assumptions used to calculate the grant date fair value of the PSUs:

	2018 Awards		2017 Awards
Expected Term in Years	4		6
Expected Volatility	89.62	%	100.03	%
Risk-Free Interest Rate	2.75	%	1.89	%