Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Percent
Summary of Significant Accounting Policies [Abstract]
Percentage Of Prompt Pay Discount The Compay Accrues	100.00%
Government Rebate and Chargeback Accruals	$ 0.6
Distribution-Related Fees Accruals	$ 1.5
Research and Development Expenses [Abstract]
Percentage of start-up costs of total contract value, minimum (in hundredths)	10.00%
Percentage of start-up costs of total contract value, maximum (in hundredths)	20.00%
Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life, minimum (in years)	10
Useful life, maximum (in years)	40
Laboratory and Other Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life, minimum (in years)	3
Useful life, maximum (in years)	10
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Useful life, maximum (in years)	5