Commitments and Contingencies (Details) (USD $)	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2013 Td Vaccine Products [Member]	Dec. 31, 2013 H Lundbeck AS [Member] Product	Dec. 22, 2011 H Lundbeck AS [Member]
Strategic Business Agreement [Abstract]
Contingent future milestone payments - 2014		$ 4,524,000
Contingent future milestone payments - 2015		598,000
Contingent future milestone payments - 2016		200,000
Contingent future milestone payments - Total		5,322,000
Business Acquisition [Line Items]
Number of NDAs off patent, branded injectable products				3
Cash paid at closing					45,000,000
Additional consideration owed				15,000,000
Cost of capital on additional consideration to be paid (in hundredths)				9.00%
Discounted value of liability related to additional consideration in a business acquisition					11,600,000
Liability related to additional consideration in a business acquisition including accrual of non-cash interest expense				14,700,000
Number of products related to minimum annual purchase obligations				2
Number of products acquired				3
Supply purchase agreement commitment				13,300,000
Fair value of long-term liability on a purchase obligation					2,500,000
Number of years related to warranty expiration		10 years
Reduction in cost of sales due to warranty reserve reversal	1,300,000
Initial contract term of distribution agreement			2 years
Commitment to acquire inventory under distribution agreement			9,200,000
Minimum notice period for non-renewal of MBL Settlement Agreement			6 months
Write-off of contract liability		$ 1,300,000