Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

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

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The Company used the Black-Scholes option-pricing model with the following weighted-average assumptions to value options that were granted in 2015: 

	2015
Dividend yield	0	%
Expected volatility	36.6	%
Risk-free interest rate	1.3	%
Expected option lives	5.0 years

Schedule of Share-based Compensation, Stock Options, Activity

The following table presents the activity related to stock options for the nine months ended September 30, 2016 and 2015:

	Options		Weighted- average exercise price		Weighted- average remaining contractual term (years)	Aggregate intrinsic value (000)
Options outstanding at January 1, 2016	3,375,909		$	5.44	9.0	$	4,243.7
Granted	14,222		3.71		8.4	29.9
Canceled / forfeited	(234	)	78.08		N/A	N/A
Exercised	(1,449	)	3.61		N/A	N/A
Expired	(1,697	)	209.87		N/A	N/A
Options outstanding at September 30, 2016	3,386,751		$	5.33	8.3	$	4,240.0
Options exercisable at September 30, 2016	86,751		$	25.78	4.7	$	49.0
Options outstanding at January 1, 2015	85,901		$	34.86	5.7	$	—
Granted	3,300,000		4.79		9.3	2,046.0
Canceled / forfeited	(8,011	)	19.52		N/A	N/A
Expired	(1,691	)	$	151.20	N/A	N/A
Options outstanding at September 30, 2015	3,376,199		$	5.45	9.2	$	2,046.0
Options exercisable at September 30, 2015	63,212		39.72		4.5	$	—

Schedule of Nonvested Restricted Stock Units Activity

The following table presents the activity related to non-vested restricted stock for the nine months endedSeptember 30, 2016:

	Number of shares		Weighted- average grant date fair value per share
Non-vested as of January 1, 2016	909,410		$	6.37
Granted	678,051		5.69
Vested	(333,688	)	5.24
Canceled / forfeited	(42,317	)	4.94
Non-vested as of September 30, 2016	1,211,456		$	6.35