Equity-Based Compensation (Successor) (Tables)

12 Months Ended

Dec. 31, 2018

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

Schedule of Outstanding Stock Options

Stock options expire seven years from the grant date and generally vest in one-third increments each year, based on continued employment. Employees have 90 days after termination to exercise vested stock options, unless extended by an employment agreement.

໿

	Successor
	Stock Options		Weighted Average Exercise Price		Weighted Average Grant-Date Fair Value		Weighted Average Remaining Term (Years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of February 9, 2018	—		$	—	$	—	—	$	—
Granted	4,840,799		8.90		4.37		—	—
Exercised	—		—		—		—	—
Forfeited or expired	(134,956	)	9.37		4.55		—	—
Outstanding as of December 31, 2018	4,705,843		8.89		4.36		5.2	—
Vested at December 31, 2018 or expected to vest in future	4,705,843		8.89		4.36		5.2	—
Exercisable as of December 31, 2018	1,509,434		$	9.54	$	4.62	3.0	$	—

Summary of Assumptions Used to Determine the Fair Value of Options

The following assumptions were used to determine the fair value of the 2018 option grants:

໿

	Successor
	February 9, 2018 Through December 31, 2018
Expected term (in years)	4.5
Expected stock volatility	64.6	%
Dividend yield	—
Risk-free interest rate	2.5	%

Schedule of Restricted Stock Awards Granted

The following table provides information about restricted stock awards granted during the Successor Period:

໿

	Successor
	Restricted Stock Awards		Weighted Average Grant Date Fair Value per share
Outstanding as of February 9, 2018	—		$	—
Granted	1,720,949		7.61
Vested (1)	(286,214	)	8.38
Forfeited or expired	(59,980	)	8.80
Outstanding as of December 31, 2018	1,374,755		$	7.39

_________________

(1) To satisfy minimum tax withholding, 94,576 shares were withheld.

Summary of PSUs Granted

The following summary provides information about the target number of PSUs granted during the Successor Period:

	Successor
	Restricted Stock Units			Weighted Average Grant - Date Fair Value per unit
Outstanding as of February 9, 2018	—			$	—
Granted	2,049,105			3.99
Vested (1)	(1,559,749	)		2.53
Forfeited or expired	(489,356	)		(8.61		)
Outstanding as of December 31, 2018	—		—	$	—

_________________

(1) To satisfy minimum tax withholding, 388,655 shares were withheld.