Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

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 granted in 2015: 

	2015
Dividend yield	—	%
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 six months ended June 30, 2015 and 2014:

	Options		Weighted- average exercise price		Weighted- average remaining contractual term (years)	Aggregate intrinsic value (000)
Options outstanding at January 1, 2015	85,901		$	34.85	5.7	$	—
Granted	3,300,000		4.79		9.6	1,287.0
Canceled / forfeited	(1,744	)	59.69		N/A	N/A
Expired	(1,691	)	151.20		N/A	N/A
Options outstanding at June 30, 2015	3,382,466		$	5.45	9.5	$	1,287.0
Options exercisable at June 30, 2015	63,972		$	39.48	4.7	$	—
Options outstanding at January 1, 2014	111,571		$	38.92	6.2	$	—
Canceled / forfeited	(2,227	)	70.21		N/A	N/A
Expired	(4,569	)	129.60		N/A	N/A
Options outstanding at June 30, 2014	104,775		$	34.30	6.0	$	—
Options exercisable at June 30, 2014	86,281		$	40.38	5.5	$	—

Schedule of Nonvested Restricted Stock Units Activity

The following table presents the activity related to non-vested restricted stock for the six months endedJune 30, 2015:

	Number of shares		Weighted- average grant date fair value per share
Non-vested as of January 1, 2015	794,473		$	6.62
Granted	395,512		4.98
Vested	(161,411	)	5.30
Canceled / forfeited	(26,147	)	4.88
Non-vested as of June 30, 2015	1,002,427		$	6.23