Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2012

Stockholders' Equity [Abstract]

Total share-based compensation expense

	Three Months Ended March 31,
	2012			2011
2012 Three-year PSU Awards	$	0.7		$	—
2011 Three-year PSU Awards		0.3			0.9
2010 Three-year PSU Awards		(0.4	)		0.8
2009 Three-year PSU Awards		—			1.5
2012 CEO Incentive Compensation		1.4			—
SLO Awards		0.3			0.4
Other long-term share-based incentive compensation programs		2.3			2.2
Total share-based incentive compensation expense (1)	$	4.6		$	5.8

(1) The amounts included above do not include the expense related to our U.S. profit sharing contributions made in the form of our common stock as such these contributions are not considered share-based incentive compensation.

Estimated amount of total share-based compensation expense

	2012		2013		2014		Total
2012 Three-year PSU Awards	$	2.2	$	2.8	$	2.9	$	7.9
2011 Three-year PSU Awards		1.9		2.5		—		4.4
2010 Three-year PSU Awards		2.8		—		—		2.8
2012 CEO Incentive Compensation		4.0		—		—		4.0
SLO Awards		0.9		0.3		—		1.2
Other long-term share-based incentive compensation programs		7.8		7.2		3.4		18.4
Total share-based incentive compensation expense (1)	$	19.6	$	12.8	$	6.3	$	38.7

(1) The amounts included above do not include the expense related to our U.S. profit sharing contributions made in the form of our common stock as such these contributions are not considered share-based incentive compensation.