Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2014

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

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

Stock-based compensation consisted of the following:

	Three Months Ended
	March 31,
(In millions)	2014		2013
Stock-based compensation expense	$	1.6	$	1.8

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes our stock option activity:

	Stock Options		Weighted Average Exercise Price
Outstanding December 31, 2013	5,371,538		$	13.11
Granted	—		—
Exercised	(42,032	)	3.99
Canceled	(44,434	)	26.95
Forfeited	(42,735	)	2.42
Outstanding March 31, 2014	5,242,337		$	13.11
Exercisable as of March 31, 2014	3,577,985		$	16.45

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

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

	Three Months Ended March 31,
	2014		2013
Volatility	43.0	%	42.9	%
Risk-free interest rate	1.1	%	1.1	%
Expected life (months)	72		71
Dividend yield	—		—

Schedule of Share-based Compensation, 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, 2013	1,192,321		$	4.87
Granted	5,576		4.60
Grant Adjustments	(4,925	)	3.75
Vested	(160,708	)	3.85
Forfeited	(16,135	)	5.27
Nonvested as of March 31, 2014	1,016,129		$	5.02