Equity-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Equity Based Compensation

Schedule of Activity Related to Stock Appreciation Rights

Activity related to the SARs is as follows:

	Number of SARs			Weighted Average Exercise Price Per SAR
Outstanding at January 1, 2016		1,452,332		$	8.87
Forfeited		(595,566	)		8.87
Outstanding at December 31, 2016		856,766		$	8.87
Exercisable at December 31, 2016		698,424		$	8.87

Schedule of Recognized Equity-based Compensation Costs

The following table presents the compensation costs recognized for the years ended December 31:

	2016			2015		2014
Equity awards	$	16,243		$	26,297	$	31,742
Liability awards		(1,354	)		1,451		—
Total	$	14,889		$	27,748	$	31,742

Restricted stock awards

Equity Based Compensation

Schedule of Weighted Average Assumptions Used to Estimate the Fair Value of Stock Awards

The following weighted average assumptions were used to estimate the fair value of the RSAs for the year ended December 31:

	2016			2015
Expected volatility		55.02	%		49.79	%
Risk-free interest rate		2.03	%		1.77	%
Dividend yield		—	%		—	%
Expected life (years)		5.7			10.0

Schedule of Activity Related to Stock Awards/Units

Activity related to RSAs is as follows:

	Number of RSAs			Weighted Average Grant Date Fair Value Per RSA
Nonvested at January 1, 2016		5,780,239		$	11.59
Granted		3,898,052			1.43
Vested		(2,494,643	)		11.33
Forfeited		(1,061,890	)		12.70
Nonvested at December 31, 2016		6,121,758		$	5.00
Exercisable at December 31, 2016		755,657		$	6.73

Non-qualified stock options

Equity Based Compensation

Schedule of Weighted Average Assumptions Used to Estimate the Fair Value of Stock Awards

The following weighted average assumptions were used to estimate the fair value of the NQSOs for the years ended December 31:

	2016			2015			2014
Expected volatility		55.02	%		54.97	%		57.27	%
Risk-free interest rate		2.03	%		1.84	%		1.69	%
Dividend yield		—	%		—	%		—	%
Expected life (years)		5.7			5.5			5.5

Non-qualified stock options

Equity Based Compensation

Schedule of Activity Related to Stock Awards/Units

Activity related to the NQSOs is as follows:

	Number of NQSOs			Weighted Average Exercise Price per NQSO
Outstanding at January 1, 2016		3,766,941		$	17.23
Granted		1,129,944			3.50
Forfeited		(588,744	)		19.69
Outstanding at December 31, 2016		4,308,141		$	13.29
Exercisable at December 31, 2016		3,110,337		$	16.75

Performance stock units

Equity Based Compensation

Schedule of Weighted Average Assumptions Used to Estimate Fair Value of Performance Stock Units

The following weighted average assumptions were used to estimate the fair value of the PSUs for the year ended December 31:

	2016
Expected volatility		64.31	%
Risk-free interest rate		0.80	%
Dividend yield		—	%

Schedule of Activity Related to Performance Stock Units

Activity related to the PSUs is as follows:

	Number of PSUs		Weighted Average Grant Date Fair Value Per PSU
Nonvested at January 1, 2016		—	$	—
Granted		283,750		0.75
Nonvested at December 31, 2016		283,750	$	0.75
Exercisable at December 31, 2016		—	$	—

Restricted stock units

Equity Based Compensation

Schedule of Activity Related to Stock Awards/Units

Activity related to the RSUs is as follows:

	Number of RSUs			Weighted Average Grant Date Fair Value Per RSU
Nonvested at January 1, 2016		—		$	—
Granted		3,491,352			2.44
Vested		(596,823	)		2.44
Forfeited		(457,097	)		2.44
Nonvested at December 31, 2016		2,437,432		$	2.44
Exercisable at December 31, 2016		358,606		$	2.44

Stock appreciation rights (SARs)

Equity Based Compensation

Schedule of Weighted Average Assumptions Used to Estimate Fair Value of Stock Appreciation Rights

The following weighted average assumptions were used to estimate the fair value of the SARs for the year ended December 31:

	2015
Expected volatility		54.97	%
Risk-free interest rate		1.84	%
Dividend yield		—	%
Expected life (years)		5.5