CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
REVENUE:
Product Sales	$ 72,685	$ 57,001	$ 189,681	$ 182,608
Services and Other	6,939	6,986	21,593	19,762
Total Revenue	79,624	63,987	211,274	202,370
COSTS AND EXPENSES:
Cost of Product Sales	33,979	24,647	81,907	70,913
Cost of Services and Other	3,959	3,001	11,057	9,627
Research and Development	16,498	15,328	43,417	46,894
Selling, General and Administrative	36,302	26,915	104,752	80,802
Total Costs and Expenses	90,738	69,891	241,133	208,236
Loss From Operations	(11,114)	(5,904)	(29,859)	(5,866)
Interest Income and Other, Net	(3,933)	(2,154)	(1,631)	(3,549)
Interest Expense	2,993	991	4,191	2,866
Loss Before Income Taxes	(18,040)	(9,049)	(35,681)	(12,281)
Income Tax (Benefit) Provision	(181)	740	(37,254)	1,141
Net (Loss) Income	$ (17,859)	$ (9,789)	$ 1,573	$ (13,422)
Basic Net (Loss) Income Per Common Share	$ (0.25)	$ (0.14)	$ 0.02	$ (0.19)
Diluted Net (Loss) Income Per Common Share	$ (0.25)	$ (0.14)	$ 0.02	$ (0.19)
Shares Used In Computing Basic Net (Loss) Income Per Common Share	70,403	69,719	70,181	70,790
Shares Used In Computing Diluted Net (Loss) Income Per Common Share	70,403	69,719	70,610	70,790