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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Table Text Block]

	June 30, 2012
	Fair Value Measurements Using Fair Value Hierarchy
	Level 1				Level 2				Level 3
Money market investments	$	2,497.8			$	—			$	—
Embedded derivative liabilities	—				—				263.2
Warrant derivative liabilities	—				—				99.8
Contingent consideration	—				—				3,130.0

	December 31, 2011
	Fair Value Measurements Using Fair Value Hierarchy
	Level 1				Level 2				Level 3
Money market investments	$	2,497.4			$	—			$	—
Embedded derivative liabilities	—				—				391.7
Warrant derivative liabilities	—				—				82.7
Contingent consideration	—				—				3,130.0

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- Definition

Tabular disclosure of the inputs and valuation techniques used to measure fair value, and a discussion of changes in valuation techniques and related inputs, if any, applied during the period to each separate class of assets and liabilities that are measured on a recurring and/or nonrecurring basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Section 50

-Paragraph 2

-Subparagraph (e)

-SubTopic 10

-Topic 820

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Section 50

-Paragraph 5

-Subparagraph (d)

-SubTopic 10

-Topic 820

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

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