CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net revenues:
Products	$ 129,190	$ 134,134	$ 266,525	$ 262,813
Services	32,154	28,026	61,142	55,303
Total net revenues	161,344	162,160	327,667	318,116
Cost of revenues:
Products	62,964	65,837	127,615	129,106
Services	15,312	13,139	29,699	27,179
Amortization of intangible assets	685	946	1,351	1,912
Total cost of revenues	78,961	79,922	158,665	158,197
Gross profit	82,383	82,238	169,002	159,919
Operating expenses:
Research and development	30,453	30,268	60,426	60,419
Marketing and selling	46,052	44,474	90,862	86,220
General and administrative	14,920	13,879	30,218	28,481
Amortization of intangible assets	2,161	2,417	4,306	5,274
Restructuring and other (recoveries) costs, net	(163)	4,007	(2,379)	5,347
Loss on sales of assets	597	0	597	0
Total operating expenses	94,020	95,045	184,030	185,741
Operating loss	(11,637)	(12,807)	(15,028)	(25,822)
Interest income	9	6	68	141
Interest expense	(717)	(252)	(1,139)	(461)
Other income (expense), net	(60)	144	3	218
Loss before income taxes	(12,405)	(12,909)	(16,096)	(25,924)
(Benefit from) provision for income taxes, net	(543)	(3)	883	464
Net loss	$ (11,862)	$ (12,906)	$ (16,979)	$ (26,388)
Net loss per common share - basic and diluted (in dollars per share)	$ (0.31)	$ (0.34)	$ (0.44)	$ (0.70)
Weighted-average common shares outstanding - basic and diluted (shares in thousands)	38,413	37,909	38,323	37,714