Consolidated Statements of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue
Product	$ 64,350	$ 66,162	$ 235,287	$ 157,133
Service	8,105	8,944	23,718	24,676
Total Revenue	72,455	75,106	259,005	181,809
Cost of revenue
Product	40,055	47,848	149,833	111,858
Service	5,505	5,788	17,058	15,606
Total Cost of revenue	45,560	53,636	166,891	127,464
Gross profit	26,895	21,470	92,114	54,345
Operating expenses
Research and development	11,389	9,872	35,036	28,482
Sales and marketing	7,237	7,151	22,731	20,361
General and administrative	8,458	7,885	25,929	23,049
Total Operating expenses	27,084	24,908	83,696	71,892
Income (loss) from operations	(189)	(3,438)	8,418	(17,547)
Other income (expense)
Interest income	7	15	24	69
Other, net	1,563	(1,996)	(45)	(2,061)
Total Other income (expense)	1,570	(1,981)	(21)	(1,992)
Income (loss) before income taxes	1,381	(5,419)	8,397	(19,539)
Income taxes	230	854	1,207	2,364
Net income (loss)	$ 1,151	$ (6,273)	$ 7,190	$ (21,903)
Net income (loss) per share
Basic (in dollars per share)	$ 0.01	$ (0.06)	$ 0.07	$ (0.21)
Diluted (in dollars per share)	$ 0.01	$ (0.06)	$ 0.07	$ (0.21)
Shares used in computing basic and diluted net income (loss) per share
Basic weighted average common shares (in shares)	106,417	104,628	106,152	104,307
Diluted weighted average common shares (in shares)	108,192	104,628	109,452	104,307