Revenue And Credit Concentrations (Consolidated Net Product Revenue Attributed To Largest Customers) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Total	46.00%	46.00%	47.00%	46.00%
Customer A [Member]
Total	18.00%	19.00%	18.00%	18.00%
Customer B [Member]
Total	16.00%	19.00%	17.00%	18.00%
Customer C [Member]
Total	12.00%	8.00%	12.00%	10.00%