Property, Plant and Equipment (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended	12 Months Ended				1 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Oct. 31, 2010 San Diego Facility [Member]	Dec. 31, 2011 San Diego Facility [Member]	Dec. 31, 2011 Hillerod, Denmark Facility [Member]	Dec. 31, 2010 Hillerod, Denmark Facility [Member]	Dec. 31, 2009 Hillerod, Denmark Facility [Member]	Jul. 31, 2011 New Cambridge Leases [Member] sqft	Dec. 31, 2011 New Cambridge Leases [Member]	Jul. 14, 2011 New Cambridge Leases [Member]
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 143.9	$ 144.9	$ 137.9
Property, Plant and Equipment (Textual) [Abstract]
Net proceeds from sale of San Diego facility				127.0
Lease transaction period in months					15 months
Construction in progress balance related to biologic manufacturing facility	553.6	506.9				474.0	440.2
Interest cost capitalization related to large-scale biologic manufacturing facility						32.6	28.6	28.5
Area of office building under lease									500,000
Future minimum rental commitments	675.1									340.0	340.0
Operating leases term									15 years
Construction cost incurred not yet paid										2.2
Expected charges to vacate building										$ 35.0