COLLABORATIVE ARRANGEMENTS (Details 8) (USD $)	3 Months Ended		9 Months Ended			1 Months Ended	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2012 Astellas	Jan. 31, 2012 License, Development and Commercialization Agreement With Astellas Astellas VIBATIV	Mar. 31, 2012 License, Development and Commercialization Agreement With Astellas Astellas VIBATIV	Nov. 30, 2005 License, Development and Commercialization Agreement With Astellas Astellas VIBATIV
Information related to collaborative arrangements
Non-refundable, cash payments								$ 191,000,000
Term of royalty payment						10 years
Percentage of royalties payable by the company on termination						2.00%
Revenues	$ 439,000	$ 1,430,000	$ 3,110,000	$ 129,960,000	$ 125,669,000		$ 125,800,000