License And Collaboration Agreements (Products In Development) (Narrative 2) (Details) (BioDelivery [Member], USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Jan. 31, 2012	Mar. 31, 2014	Mar. 31, 2012
License And Collaboration Agreements [Line Items]
Up-front cash payment			$ 30.0
Additional milestone payment		10.0	15.0
Agreement termination, written notice, months	6 months
Expiration of agreement, time period	10 years
Buprenorphine and commercial and regulatory milestone [Member]
License And Collaboration Agreements [Line Items]
Additional milestone payment	$ 125.0