Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Stock Based Compensation Expense

Our stock-based compensation expense was as follows for the three and nine months ended September 30, 2016 and 2015 (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
Restricted stock units	$	1,012	$	608	$	3,254	$	1,779
Performance units		651		384		1,708		912
Restricted stock issued to directors		101		213		454		614
Incentive units		—		32		48		89
Total expense	$	1,764	$	1,237	$	5,464	$	3,394

Summary of Restricted Stock Unit Awards Activity

A summary of restricted stock unit awards activity during the nine months ended September 30, 2016 is as follows:

	Number of shares			Weighted average grant date fair value		Aggregate intrinsic value (in thousands)
Total awarded and unvested, December 31, 2015		1,000,052		$	7.07	$	1,820
Granted		3,751,931			1.36
Vested		(340,879	)		7.13
Forfeited		(67,522	)		7.13
Total awarded and unvested, September 30, 2016		4,343,582		$	2.14	$	14,290

Summary of Performance Stock Unit Awards Activity

A summary of performance stock unit awards activity during the nine months ended September 30, 2016 is as follows

	Number of shares		Weighted average grant date fair value		Aggregate intrinsic value (in thousands
Total awarded and unvested, December 31, 2015		458,656	$	8.77	$	417
Granted		1,469,346		1.60
Vested		—		—
Forfeited		—		—
Total awarded and unvested, September 30, 2016		1,928,002	$	3.31	$	6,343