Property, Plant and Equipment (Details) (USD $) In Millions, unless otherwise specified			1 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended		1 Months Ended
	Sep. 30, 2011	Dec. 31, 2010	Oct. 31, 2010 San Diego Facility [Member]	Sep. 30, 2011 San Diego Facility [Member]	Sep. 30, 2011 Hillerod, Denmark Facility [Member]	Sep. 30, 2011 Hillerod, Denmark Facility [Member]	Dec. 31, 2010 Hillerod, Denmark Facility [Member]	Jul. 31, 2011 New Cambridge Leases [Member] sqft	Jul. 14, 2011 New Cambridge Leases [Member]
Property, Plant and Equipment (Textuals) [Abstract]
Accumulated depreciation on property, plant and equipment	$ 749.1	$ 767.2
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					481.7	481.7	440.2
Interest cost capitalization related to large-scale biologic manufacturing facility					7.3	21.7
Area of office building under lease								500,000
Future minimum rental commitments under non- cancelable operating leases									$ 340.0
Operating leases term								15 years