Condensed Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Revenues [Abstract]
Revenues	$ 857,521	$ 728,285	$ 1,759,287	$ 1,464,313
Costs and Expenses:
Marketing and sales	139,296	135,967	279,482	268,793
Research and development	286,597	285,227	577,492	556,219
General and administrative	51,426	40,333	100,363	80,285
Amortization of acquired intangibles	4,633	5,030	9,597	9,661
Restructuring	16	(469)	28	(746)
Total costs and expenses	574,633	542,847	1,157,470	1,074,938
Income from operations	282,888	185,438	601,817	389,375
Interest expense	(4,281)	(4,316)	(8,389)	(8,533)
Other income (expenses), net	(5,962)	2,143	(10,862)	4,844
Income before provision for income taxes	272,645	183,265	582,566	385,686
Provision for income taxes	85,725	27,365	160,311	42,617
Net income	$ 186,920	$ 155,900	$ 422,255	$ 343,069
Net income per share - basic (usd per share)	$ 0.69	$ 0.57	$ 1.55	$ 1.25
Net Income per share - diluted (usd per share)	$ 0.68	$ 0.56	$ 1.53	$ 1.23
Weighted average common shares outstanding - basic (in shares)	271,520	273,565	272,028	273,843
Weighted average common shares outstanding - diluted (in shares)	275,172	278,558	276,097	279,399
Product and maintenance [Member]
Revenues [Abstract]
Revenues	$ 802,285	$ 687,884	$ 1,648,529	$ 1,386,938
Costs and Expenses:
Cost of sales	68,717	55,842	141,512	120,748
Service [Member]
Revenues [Abstract]
Revenues	55,236	40,401	110,758	77,375
Costs and Expenses:
Cost of sales	$ 23,948	$ 20,917	$ 48,996	$ 39,978