Master Services Agreement with Cadila (Details) (Cadila [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	72 Months Ended
	Mar. 31, 2015	Mar. 31, 2015
Related Party Transaction [Line Items]
Services purchased	$ 0.6	$ 6.3
Remaining obligation under Master Services Agreement	1.2
Maximum [Member]
Related Party Transaction [Line Items]
Total amount of services to be provided	7.5
Payment for portion of shortfall	$ 2.0