Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
Revenues:
Product	$ 136,471	$ 141,736
Service	43,207	36,782
Total revenues	179,678	178,518
Costs and expenses:
Cost of product revenues	91,339	87,797
Cost of service revenues	22,414	22,427
Research and development	20,009	17,815
Selling, general and administrative	66,007	54,242
Impairment of goodwill	14,925
Gain on intellectual property sales	(1,400)
Acquisition costs		4,839
Total costs and expenses	213,294	187,120
Operating loss	(33,616)	(8,602)
Interest income	121	98
Interest expense	(750)	(511)
Loss before income taxes	(34,245)	(9,015)
Income tax expense (benefit)	207,845	(2,938)
Net loss	$ (242,090)	$ (6,077)
Basic loss per share	$ 60,030.00	$ 60,367.00
Diluted loss per share	$ 60,030.00	$ 60,367.00
Shares used in computing:
Basic loss per share	60,029,951	60,367,378
Diluted loss per share	60,029,951	60,367,378