Subsequent Events Recothrom (Details) (USD $)	1 Months Ended
	Feb. 28, 2015	Feb. 28, 2013
Subsequent Event [Member]
Subsequent Event [Line Items]
Payment to acquire business	$ 6,500,000
BMS [Member]
Subsequent Event [Line Items]
Collaboration fee		105,000,000
Option fee		10,000,000
Collaboration term		2 years
BMS [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Payment to acquire business	127,700,000
Inventory	39,300,000
Maximum payment to acquire business	$ 4,900,000
Collaboration term	2 years