Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

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

Schedule of Stock-Based Compensation

Stock-based compensation consisted of the following:

	Three Months Ended
	March 31,
(In millions)	2015		2014
Stock-based compensation expense	$	0.9	$	1.6

Summary of Stock Option Activity

The following table summarizes our stock option activity:

	Stock Options		Weighted Average Exercise Price
Outstanding December 31, 2014	3,897,986		$	13.07
Granted	24,547		3.94
Exercised	—		—
Canceled	(113,753	)	19.80
Forfeited	(39,687	)	5.15
Outstanding March 31, 2015	3,769,093		$	12.89
Exercisable as of March 31, 2015	3,351,970		$	13.92

Summary of Weighted Average Assumptions Used in the Valuation of Stock Options

The following table summarizes our weighted average assumptions used in the valuation of stock options:

	Three Months Ended
	March 31,
	2015		2014
Volatility	46.0	%	43.0	%
Risk-free interest rate	1.9	%	1.1	%
Expected life (months)	73		72
Dividend yield	—		—

Summary of Restricted Stock Activity

The following table summarizes our restricted stock activity:

	Restricted Stock		Weighted Average Grant Date Fair Value Per Share
Nonvested as of December 31, 2014	1,348,917		$	3.81
Granted	690,661		3.80
Grant adjustments	—		—
Vested	(332,069	)	3.74
Forfeited	(625	)	5.79
Nonvested as of March 31, 2015	1,706,884		$	3.82