Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 29, 2013		Sep. 30, 2012		Sep. 29, 2013		Sep. 30, 2012
Net revenues:
Products	$ 365,825		$ 393,037		$ 943,212		$ 1,204,506
Services	67,551		70,357		199,420		203,840
Total net revenues	433,376		463,394		1,142,632		1,408,346
Cost of revenues:
Cost of products	150,365		169,782		405,569		550,282
Cost of services	28,717		33,412		88,119		97,432
Total cost of revenues	179,082		203,194		493,688		647,714
Gross profit	254,294		260,200		648,944		760,632
Operating expenses:
Engineering and development	68,918		63,946		199,442		193,059
Selling and administrative	72,917		69,030		210,037		207,727
Acquired intangible assets amortization	18,064		18,429		54,163		55,287
Restructuring and other	889		683		1,480		(7,404)
Total operating expenses	160,788		152,088		465,122		448,669
Income from operations	93,506		108,112		183,822		311,963
Interest income	948		1,067		2,923		2,834
Interest expense and other	(6,902)		(6,154)		(20,262)		(18,536)
Income before income taxes	87,552	[1],[2]	103,025	[1],[2]	166,483	[1],[2]	296,261	[1],[2]
Income tax provision	18,093		14,384		23,879		62,669
Net income	$ 69,459		$ 88,641		$ 142,604		$ 233,592
Net income per common share:
Basic	$ 0.36		$ 0.47		$ 0.75		$ 1.25
Diluted	$ 0.29		$ 0.39		$ 0.61		$ 1.02
Weighted average common shares-basic	191,307		187,364		190,521		186,592
Weighted average common shares-diluted	235,828		229,210		235,165		230,003

[1] Pension and post retirement actuarial gains and losses, interest income, and interest expense and other are included in Corporate and Eliminations.

[2] Included in the income (loss) before income taxes for each of the segments are charges and credits for the three and nine months ended September 29, 2013 and September 30, 2012 that include restructuring and other, and provision for excess and obsolete inventory, as follows: