Commitments And Contingencies (Manufacturing, Supply and Other Service Agreements) (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Grunenthal Agreement
Loss Contingencies [Line Items]
Additional milestone payment recognized	$ 7.2	$ 7.5
Teikoku Seiyaku Co Ltd
Loss Contingencies [Line Items]
Payments for royalties	3.8	5.0
Royalty payable	$ 3.8
Termination of agreement notice period	45 days
Noramco, Inc.
Loss Contingencies [Line Items]
Purchased Amount	$ 8.4	$ 6.5