CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net revenues:
Products	$ 119,938	$ 136,765
Services	32,201	28,988
Total net revenues	152,139	165,753
Cost of revenues:
Products	61,208	63,867
Services	12,717	14,054
Amortization of intangible assets	650	666
Total cost of revenues	74,575	78,587
Gross profit	77,564	87,166
Operating expenses:
Research and development	27,482	29,973
Marketing and selling	45,927	45,050
General and administrative	14,638	15,000
Amortization of intangible assets	1,611	2,145
Restructuring costs (recoveries), net	168	(1,476)
Total operating expenses	89,826	90,692
Operating loss	(12,262)	(3,526)
Interest income	129	59
Interest expense	(343)	(422)
Other income (expense), net	20	63
Loss before income taxes	(12,456)	(3,826)
Provision for income taxes, net	521	957
Net loss	$ (12,977)	$ (4,783)
Net loss per common share - basic and diluted (in dollars per share)	$ (0.34)	$ (0.13)
Weighted-average common shares outstanding - basic and diluted (in shares)	38,662	38,228