Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Revenues	$ 330,865	$ 284,311	$ 304,273
Cost of sales:
Cost of sales	225,752	190,915	204,975
Amortization of purchased technology	8,348	6,182	6,476
Total cost of sales	234,100	197,097	211,451
Gross margin	96,765	87,214	92,822
Research and development	44,625	38,678	41,886
Selling, general and administrative	52,722	45,532	45,105
Intangible assets amortization	2,922	730	2,588
Restructuring and acquisition-related charges, net	9,980	1,575	5,435
Gain on the liquidation of a foreign subsidiary	(2,081)	0	0
Income (loss) from operations	(11,403)	699	(2,192)
Interest expense	(1,870)	(2,035)	(2,373)
Interest income	99	636	1,122
Other income (expense), net	513	(154)	211
Income (loss) before income tax benefit	(12,661)	(854)	(3,232)
Income tax benefit	(8,436)	(485)	39,335
Net loss	$ (4,225)	$ (369)	$ (42,567)
Net income per share:
Basic	$ (0.17)	$ (0.02)	$ (1.81)
Diluted	$ (0.17)	$ (0.02)	$ (1.81)
Weighted average shares outstanding:
Basic	25,413	24,144	23,493
Diluted	25,413	24,144	23,493