Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 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				Six Months Ended
	June 30,				June 30,
(In millions)	2015		2014		2015		2014
Stock-based compensation expense	$	0.5	$	1.4	$	1.4	$	3.0

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	(12,381	)	3.84
Canceled	(321,880	)	25.35
Forfeited	(43,497	)	7.36
Outstanding June 30, 2015	3,544,775		$	11.99
Exercisable as of June 30, 2015	3,348,131		$	12.48

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:

	Six Months Ended
	June 30,
	2015		2014
Volatility	46.0	%	46.2	%
Risk-free interest rate	1.9	%	1.9	%
Expected life (months)	73		73
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	862,706		3.97
Grant adjustments	—		—
Vested	(807,239	)	4.19
Forfeited	(867,445	)	3.76
Nonvested as of June 30, 2015	536,939		$	3.57