Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues:
Product	$ 617,369	$ 676,991	$ 545,258
Service	172,724	171,190	133,853
Total revenues	790,093	848,181	679,111
Costs and expenses:
Cost of product revenues	384,055	404,591	341,218
Cost of service revenues	89,998	96,853	80,301
Research and development, net	82,488	84,384	69,547
Selling, general and administrative	246,840	250,296	184,903
Impairment of property, plant and equipment	0	900	3,008
Capitalized legal fees charge	0	5,573	0
Impairment of goodwill	51,157	0	0
Gain on sale of assets	(5,189)	0	(2,937)
Acquisition costs	0	5,974	0
Restructuring costs	4,429	5,855	2,780
Total costs and expenses	853,778	854,426	678,820
Operating (loss) profit	(63,685)	(6,245)	291
Interest income	349	624	1,229
Interest expense	(3,128)	(2,868)	(1,296)
(Loss) earnings before income taxes	(66,464)	(8,489)	224
Income tax expense	216,039	22,268	5,549
Net loss	$ (282,503)	$ (30,757)	$ (5,325)
Loss per share:
Basic	$ (4.68)	$ (0.51)	$ (0.09)
Diluted	$ (4.68)	$ (0.51)	$ (0.09)
Shares used in computing loss per share:
Basic	60,324	60,098	61,364
Diluted	60,324	60,098	61,364