Property, Plant and Equipment (Details) (USD $)			3 Months Ended		9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Hillerod, Denmark Facility [Member]	Sep. 30, 2011 Hillerod, Denmark Facility [Member]	Sep. 30, 2012 Hillerod, Denmark Facility [Member]	Sep. 30, 2011 Hillerod, Denmark Facility [Member]	Sep. 30, 2012 Cambridge Leases [Member]	Dec. 31, 2011 Cambridge Leases [Member]
Property, Plant and Equipment [Line Items]
Land	$ 54,000,000	$ 51,900,000
Buildings	839,700,000	597,900,000
Leasehold improvements	105,800,000	102,700,000
Machinery and equipment	824,300,000	570,100,000
Computer software and hardware	465,900,000	439,700,000
Furniture and fixtures	43,100,000	37,600,000
Construction in progress	242,100,000	553,600,000
Total cost	2,574,900,000	2,353,500,000	454,400,000		454,400,000
Less: accumulated depreciation	(898,300,000)	(782,100,000)
Total property, plant and equipment, net	1,676,583,000	1,571,387,000
Interest cost capitalization related to large-scale biologic manufacturing facility			6,600,000	8,400,000	23,400,000	24,300,000
Average estimated useful life					20 years
Period to complete license to produce commercial product					12 months
Construction cost incurred not yet paid							56,600,000	2,200,000
Expected charges to vacate building							$ 35,000,000