Condensed Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jul. 05, 2020	Jul. 04, 2021	Jul. 05, 2020
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,228,471	$ 811,718	$ 2,536,160	$ 1,464,114
Cost of Goods and Services Sold	543,277	364,374	1,065,820	708,747
Selling, general and administrative expenses	281,819	221,026	533,229	429,595
Research and development expenses	65,824	49,521	126,040	98,435
Restructuring and other costs, net	5,063	1,158	10,807	7,016
Operating income from continuing operations	332,488	175,639	800,264	220,321
Interest And Other Expense Net	6,431	10,812	(6,275)	20,805
Income from continuing operations before income taxes	326,057	164,827	806,539	199,516
Provision for income taxes	80,089	27,614	181,228	28,588
Income from continuing operations	245,968	137,213	625,311	170,928
Loss on disposition of discontinued operations before income taxes	0	0	0	0
Provision for income taxes on discontinued operations and dispositions	38	51	76	101
Loss from discontinued operations and dispositions	(38)	(51)	(76)	(101)
Net income	$ 245,930	$ 137,162	$ 625,235	$ 170,827
Basic earnings (loss) per share:
Income (loss) from continuing operations (per share)	$ 2.20	$ 1.23	$ 5.58	$ 1.54
Gain (loss) on discontinued operations and dispositions (per share)	(0.00)	(0.00)	(0.00)	(0.00)
Net income (per share)	2.20	1.23	5.58	1.54
Diluted earnings (loss) per share:
Income (loss) from continuing operations (per share)	2.19	1.23	5.56	1.53
Gain (loss) on discontinued operations and dispositions (per share)	(0.00)	(0.00)	(0.00)	(0.00)
Net income (per share)	$ 2.19	$ 1.23	$ 5.56	$ 1.53
Weighted average shares of common stock outstanding:
Basic (in shares)	111,973	111,329	112,000	111,225
Diluted (in shares)	112,417	111,869	112,456	111,756
Cash dividends per common share	$ 0.07	$ 0.07	$ 0.14	$ 0.14
Product [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 767,759	$ 601,506	$ 1,579,311	$ 1,027,035
Cost of Goods and Services Sold	365,823	240,494	705,135	446,684
Service [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	460,712	210,212	956,849	437,079
Cost of Goods and Services Sold	$ 177,454	$ 123,880	$ 360,685	$ 262,063