Common Stock and Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

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

Schedule of Restricted Stock Unit Activity

The following table summarizes PSU activity during the nine months ended September 30, 2018:

	PSUs		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2018	121,807		$	18.62
Granted	295,191		8.80
Vested	—		—
Forfeited or canceled	(36,340	)	10.51
Performance adjustment(1)	(85,795	)	18.13
Outstanding at September 30, 2018	294,863		$	9.93

(1) Represents an adjustment to the 2017 tranche of the 2016 and 2017 PSU awards based on actual performance during the 2017 annual performance period in relation to the established performance goal for that period. The actual performance for the 2017 annual performance period was certified by the Compensation Committee of our Board of Directors in the first quarter of 2018.

The following table summarizes RSU activity during the nine months ended September 30, 2018:

	Employees			Non-Employee Directors			Total
RSUs outstanding at January 1, 2018	545,405			85,829			631,234
RSUs granted	739,982			95,669			835,651
Shares issued upon vesting of RSUs	(173,463		)	(38,454		)	(211,917		)
RSUs canceled or forfeited(1)	(265,253		)	(1,915		)	(267,168		)
RSUs outstanding at September 30, 2018	846,671			141,129			987,800
Weighted average grant date fair value	$	11.53		$	11.98		$	11.60

(1) Pursuant to the terms of our plans, employees have the option of forfeiting RSUs to cover their minimum statutory tax withholding when shares are issued. Any RSUs surrendered or canceled in satisfaction of participants’ tax withholding obligations are not available for future grants under the plans.

Schedule of Phantom Share Activity

The following table summarizes the phantom share activity during the nine months ended September 30, 2018:

	Shares		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2018	1,322,580		$	18.26
Granted	1,696,007		8.80
Converted/paid	(612,363	)	17.98
Forfeited	(356,587	)	13.13
Outstanding at September 30, 2018	2,049,637		$	11.41

Schedule of Stock Option Activity

The following table summarizes stock option activity during the nine months ended September 30, 2018:

	Options		Weighted Average Exercise Price		Weighted Average Contractual Life (Years)	Aggregate Intrinsic Value
Options outstanding and exercisable at January 1, 2018	700,467		$	17.21
Forfeited and canceled	(299,914	)	20.61
Exercised	—		—
Options outstanding and exercisable at September 30, 2018	400,553		$	14.65	1.26	$	—

Schedule of Share-Based Compensation Expense Recognized

The following table summarizes the share-based compensation expense recognized during the three and nine months ended September 30, 2018 and 2017:

	Three Months Ended September 30						Nine Months Ended September 30
	2018			2017			2018			2017
	(In thousands)
RSUs	$	1,190		$	2,084		$	3,735		$	4,738
PSUs(1)	(1,215		)	(1,604		)	(68		)	(2,155		)
Phantom shares	645			422			3,578			4,978
Total	$	620		$	902		$	7,245		$	7,561

(1) The net credit to PSU expense for the three months ended September 30, 2018 is primarily the result of lower expected performance (relative to the established performance metric) associated with the 2018 tranche of these awards.