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Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011


	For the Three Months				For the Nine Months
	Ended September 30,				Ended September 30,
	2011		2010		2011		2010
Net stock-based compensation expense	$	3.5	$	4.1	$	12.6	$	11.8

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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