STOCK-BASED COMPENSATION (Details 2) (USD $)	3 Months Ended		9 Months Ended			9 Months Ended	12 Months Ended	9 Months Ended		12 Months Ended	9 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended		12 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 RSAs	Sep. 30, 2013 RSAs 2011 Restricted Stock Awards Senior management Performance-contingent	Dec. 31, 2011 RSAs 2011 Restricted Stock Awards Senior management Performance-contingent	Sep. 30, 2013 RSAs 2011 Restricted Stock Awards Senior management Performance-contingent Maximum	Sep. 30, 2013 RSAs 2011 Restricted Stock Awards Non-executive officer Performance-contingent	Dec. 31, 2011 RSAs 2011 Restricted Stock Awards Non-executive officer Performance-contingent	Sep. 30, 2013 RSAs 2013 Restricted Stock Awards Senior management Performance-contingent	Sep. 30, 2013 RSUs	Sep. 30, 2013 RSUs 2010 Restricted Stock Awards Senior management Performance-contingent	Sep. 30, 2012 RSUs 2010 Restricted Stock Awards Senior management Performance-contingent	Dec. 31, 2010 RSUs 2010 Restricted Stock Awards Senior management Performance-contingent	Sep. 30, 2013 Stock options	Sep. 30, 2013 Research and development	Sep. 30, 2012 Research and development	Sep. 30, 2013 Research and development	Sep. 30, 2012 Research and development	Dec. 31, 2011 Research and development RSAs 2011 Restricted Stock Awards Senior management Performance-contingent	Sep. 30, 2013 Selling, general and administrative	Sep. 30, 2012 Selling, general and administrative	Sep. 30, 2013 Selling, general and administrative	Sep. 30, 2012 Selling, general and administrative	Dec. 31, 2011 Selling, general and administrative RSAs 2011 Restricted Stock Awards Senior management Performance-contingent
Stock-based compensation
Shares of common stock approved and authorized for issuance							1,290,000			25,000	44,500				210,000
Timeframe for achievement of performance conditions							6 years
Maximum potential expense							$ 28,200,000			$ 475,000											$ 6,300,000					$ 21,900,000
Stock-based compensation expense	6,446,000	5,830,000	19,704,000	18,044,000		0			404,000		317,000		49,000	244,000			4,191,000	3,259,000	12,496,000	10,329,000		2,255,000	2,571,000	7,208,000	7,715,000
Stock-based compensation expenses that will be recognized subject to sufficient performance conditions								6,700,000
Total stock-based compensation expense capitalized to inventory		198,000	170,000	198,000
Total unrecognized compensation cost related to unvested stock-based compensation					$ 25,300,000							$ 18,800,000				$ 8,700,000