Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Net revenues	$ 335,053	$ 344,288	$ 402,862
Cost of net revenues	266,759	271,845	318,270
Gross profit	68,294	72,443	84,592
Operating costs and expenses:
Research and development	48,246	60,422	61,392
Sales and marketing	20,898	27,501	29,830
General and administrative	24,179	22,668	21,600
Goodwill and intangible assets impairment	0	49,521	3,277
Amortization of purchased intangible assets	562	1,074	2,220
Contingent loss for litigation	14,326	0	0
Restructuring charges	3,304	0	0
Total operating costs and expenses	111,515	161,186	118,319
Operating loss	(43,221)	(88,743)	(33,727)
Other income (expense):
Interest income, net	113	291	384
Other expense, net	(222)	(203)	(1,052)
Loss before income taxes	(43,330)	(88,655)	(34,395)
Income tax (benefit) provision	83	611	(9,503)
Net loss	$ (43,413)	$ (89,266)	$ (24,892)
Net loss per share:
Basic and diluted	$ (1.28)	$ (2.72)	$ (0.78)
Weighted average shares used in computation of basic and diluted net loss per share:
Basic and diluted	33,948	32,852	32,043