CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net revenues:
Products	$ 80,029	$ 94,570
Services	39,557	40,412
Total net revenues	119,586	134,982
Cost of revenues:
Products	31,797	34,994
Services	15,695	15,671
Amortization of intangible assets	0	50
Total cost of revenues	47,492	50,715
Gross profit	72,094	84,267
Operating expenses:
Research and development	23,173	22,954
Marketing and selling	28,045	32,815
General and administrative	19,387	18,331
Amortization of intangible assets	374	480
Total operating expenses	70,979	74,580
Operating income	1,115	9,687
Interest income	34	20
Interest expense	(372)	(373)
Other (expense) income, net	(385)	2
Income before income taxes	392	9,336
Provision for income taxes, net	561	440
Net (loss) income	$ (169)	$ 8,896
Net (loss) income per common share – basic and diluted	$ 0.00	$ 0.23
Weighted-average common shares outstanding – basic	39,387	39,099
Weighted-average common shares outstanding – diluted	39,387	39,122