FINANCIAL INFORMATION Revised Consolidated Statements of Operations (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net revenues:
Products	$ (92,969)	$ (109,684)	$ (291,545)	$ (362,381)
Services	45,924		124,764
Total net revenues	138,893	150,607	416,309	475,234
Cost of revenues:
Products	39,683		115,600
Services	16,372		47,040
Amortization of intangible assets	158		1,310
Total cost of revenues	56,213		163,950
Gross profit	82,680		252,359
Operating expenses:
Research and development	23,239		70,693
Marketing and selling	31,512		99,324
General and administrative	22,715		54,443
Amortization of intangible assets	660		1,981
Restructuring costs, net	688		2,879
Loss on sale of assets			(125)
Total operating expenses	78,814		229,320
Operating loss	3,866		23,039
Interest income	76		271
Interest expense	(441)		(1,150)
Other income (expense), net	2		11
Loss before income taxes	3,503		22,171
Provision for income taxes, net	921		2,147
Net loss	$ 2,582		$ 20,024
Net loss per common share - basic and diluted (in dollars per share)	$ 0.07		$ 0.51
Weighted-average common shares outstanding - diluted	39,076	38,890	39,066	38,819