Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 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 three months ended March 31, 2016:

	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	—		—		N/A	N/A
Canceled / forfeited	(234	)	78.08		N/A	N/A
Expired	(1,634	)	151.20		N/A	N/A
Options outstanding at March 31, 2016	3,374,041		$	5.34	8.8	$	3,038.4
Options exercisable at March 31, 2016	74,041		$	29.80	4.5	$	2.4

Schedule of Nonvested Restricted Stock Units Activity

The following table presents the activity related to non-vested restricted stock for the three months endedMarch 31, 2016:

	Number of shares		Weighted- average grant date fair value per share
Non-vested as of January 1, 2016	909,410		$	6.37
Granted	—		—
Vested	(5,148	)	6.80
Canceled / forfeited	(15,571	)	4.91
Non-vested as of March 31, 2016	888,691		$	6.39