STRATEGIC COLLABORATIONS (DETAILS) (USD $) In Millions	3 Months Ended	9 Months Ended	3 Months Ended				9 Months Ended
	Mar. 31, 2011 Research And Development Arrangement Anacor [Member]	Sep. 30, 2011 Research And Development Arrangement Anacor [Member]	Jun. 30, 2011 Research And Development Arrangement Privately Held Biotechnology Company [Member]	Dec. 31, 2010 Research And Development Arrangement Privately Held Biotechnology Company [Member]	Sep. 30, 2010 Research And Development Arrangement Privately Held Biotechnology Company [Member]	Sep. 30, 2011 Research And Development Arrangement Lupin [Member]	Sep. 30, 2011 Research And Development Arrangement Lupin [Member]
Long Term Purchase Commitment [Line Items]
Long Term Purchase Commitment Milestone Payments Made	$ 7.0		$ 5.5	$ 10.0	$ 5.0	$ 20.0
Long Term Purchase Commitment Future Potential Milestone Payments		$ 153.0			$ 100.5		$ 38.0