Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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+ Details

Acquisitions (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Stromedix, Inc.	Mar. 08, 2012 Stromedix, Inc.
Purchase price allocation for the acquisition
Cash portion of consideration					$ 75.0
Fair value of pre-existing equity ownership					10.2
Fair value of contingent consideration	293.9	151.0	81.2	135.3	122.2
Total purchase price					$ 207.4