Condensed Consolidated Income Statements (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Sales Revenue, Goods, Net	$ 381,609	$ 374,024	$ 747,093	$ 720,643
Sales Revenue, Services, Net	174,561	166,649	339,687	322,973
Revenue	556,170	540,673	1,086,780	1,043,616
Cost of Goods Sold	201,649	195,748	390,933	376,870
Cost of Services	106,537	103,263	212,150	200,642
Cost of sales	308,186	299,011	603,083	577,512
Selling, general and administrative expenses	147,253	147,795	299,690	298,235
Research and development expenses	30,352	34,404	59,731	68,402
Restructuring and lease charges, net	742	19,247	2,877	22,557
Operating income from continuing operations	69,637	40,216	121,399	76,910
Interest and other expense, net	8,964	12,865	20,253	24,905
Income from continuing operations before income taxes	60,673	27,351	101,146	52,005
Provision for income taxes	8,670	77	14,192	(8,044)
Net income from continuing operations	52,003	27,274	86,954	60,049
Loss from discontinued operations before income taxes	(2,084)	(552)	(3,114)	(1,345)
Gain (Loss) on disposition of discontinued operations before income taxes	(302)	613	(374)	521
(Benefit from) provision for income taxes on discontinued operations and dispositions	(873)	(590)	(1,248)	(916)
Net income (loss) from discontinued operations and dispositions	(1,513)	651	(2,240)	92
Net income	$ 50,490	$ 27,925	$ 84,714	$ 60,141
Basic earnings (loss) per share:
Net income from continuing operations (per share)	$ 0.46	$ 0.24	$ 0.77	$ 0.53
Net income (loss) from discontinued operations and dispositions (per share)	$ (0.01)	$ 0.01	$ (0.02)	$ 0.00
Net Income (per share)	$ 0.45	$ 0.25	$ 0.75	$ 0.53
Diluted earnings (loss) per share:
Net income from continuing operations (per share)	$ 0.46	$ 0.24	$ 0.76	$ 0.53
Net income (loss) from discontinued operations and dispositions (per share)	$ (0.01)	$ 0.01	$ (0.02)	$ 0.00
Net income (per share)	$ 0.44	$ 0.25	$ 0.74	$ 0.53
Weighted average shares of common stock outstanding:
Basic (in shares)	112,788	111,575	112,671	112,515
Diluted (in shares)	113,971	112,718	113,874	113,717
Cash dividends per common share	$ 0.07	$ 0.07	$ 0.14	$ 0.14