Condensed Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Revenues [Abstract]
Revenues	$ 902,554	$ 750,895	$ 2,661,841	$ 2,215,208
Costs and Expenses:
Marketing and sales	152,925	143,401	432,407	412,194
Research and development	323,629	289,105	901,121	845,324
General and administrative	73,688	42,990	174,051	123,275
Amortization of acquired intangibles	3,946	5,000	13,543	14,661
Restructuring	14	(222)	42	(968)
Total costs and expenses	641,802	556,861	1,799,272	1,631,799
Income from operations	260,752	194,034	862,569	583,409
Interest expense	(5,463)	(4,196)	(13,852)	(12,729)
Other income (expenses), net	(3,017)	(1,143)	(13,879)	3,701
Income before provision for income taxes	252,272	188,695	834,838	574,381
Provision for income taxes	65,967	12,388	226,278	55,005
Net income	$ 186,305	$ 176,307	$ 608,560	$ 519,376
Net income per share - basic (usd per share)	$ 0.69	$ 0.65	$ 2.24	$ 1.90
Net Income per share - diluted (usd per share)	$ 0.68	$ 0.63	$ 2.21	$ 1.86
Weighted average common shares outstanding - basic (in shares)	271,131	273,194	271,694	273,636
Weighted average common shares outstanding - diluted (in shares)	274,957	278,311	275,683	279,046
Product and maintenance [Member]
Revenues [Abstract]
Revenues	$ 845,788	$ 706,160	$ 2,494,317	$ 2,093,098
Costs and Expenses:
Cost of sales	62,351	54,185	203,863	174,933
Service [Member]
Revenues [Abstract]
Revenues	56,766	44,735	167,524	122,110
Costs and Expenses:
Cost of sales	$ 25,249	$ 22,402	$ 74,245	$ 62,380