License And Collaboration Agreements (Commercial Products) (Narrative 1) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		0 Months Ended	3 Months Ended			0 Months Ended	1 Months Ended	0 Months Ended	1 Months Ended		3 Months Ended			1 Months Ended			3 Months Ended
	Mar. 31, 2014 year_of_agreement	Mar. 31, 2013	Mar. 04, 2008 Voltaren Gel Agreement [Member]	Mar. 31, 2014 Voltaren Gel Agreement [Member]	Mar. 31, 2013 Voltaren Gel Agreement [Member]	Mar. 31, 2012 Voltaren Gel Agreement [Member]	Mar. 04, 2008 Voltaren Gel Agreement [Member] Voltaren Gel [Member]	Jul. 31, 2005 Bayerschering Agreement [Member]	Mar. 06, 2014 Bayerschering Agreement [Member] Aveed [Member]	Oct. 31, 2006 Bayerschering Agreement [Member] Aveed [Member]	Jul. 31, 2005 Bayerschering Agreement [Member] Aveed [Member]	Mar. 31, 2014 Voltaren Gel Agreement Extending Through June Two Thousand Thirteen [Member] Novartis Consumer Health Inc [Member]	Mar. 31, 2014 Voltaren Gel Agreement Extending Through June Two Thousand Thirteen [Member] Voltaren Gel Agreement [Member]	Mar. 31, 2014 Voltaren Gel Agreement Extending Through June Two Thousand Fourteen [Member] Novartis Consumer Health Inc [Member]	Dec. 31, 2013 Voltaren Gel Agreement Extending Through June Two Thousand Fourteen [Member] Voltaren Gel [Member]	Dec. 31, 2012 Voltaren Gel Agreement Extending Through June Two Thousand Fourteen [Member] Voltaren Gel [Member]	Dec. 31, 2012 Voltaren Gel Agreement Extending Through June Two Thousand Fourteen [Member] Voltaren Gel Agreement [Member] Term	Mar. 31, 2014 Voltaren Gel Agreement Extending Through June Two Thousand Fourteen [Member] Voltaren Gel Agreement [Member]
License And Collaboration Agreements [Line Items]
License agreement term (years)			5 years
Upfront cash payment			$ 85.0					$ 30.0
Milestone Payment Due Upon Approval By FDA											5.0
Guaranteed minimum annual royalty payments in the fourth year			30.0
Guaranteed minimum annual royalty payments in the fifth year				30
Fourth year of agreement	4
Fifth year of agreement	5
Conditional milestone payment							25.0
Sales thresholds							300.0
Fair value of exclusive license							129.0
Guaranteed minimum royalty payment						7.5
Percentage of net sales applied for supply price										25.00%	25.00%
Estimated life of license agreement (years)	14 years		5 years
Payments for royalties				7.5	7.5
Additional milestone payment									5.0
Agreement expiration date													June 30, 2013					June 30, 2014
Number of successive terms																	2
License agreement term extension																	1 year
Royalty guarantees, commitments, amount															21.5	21.3
Number of months required for cancellation in renewal period				6 months
Termination of agreement notice period (days)				90 days
Long-term Purchase Commitment, Amount												4.5		5.9
Marketing and Advertising Expense	$ 2.1	$ 2.1