Condensed Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jul. 02, 2022	Jun. 30, 2023	Jul. 02, 2022
Revenues [Abstract]
Revenue	$ 976,579	$ 857,521	$ 1,998,269	$ 1,759,287
Costs and Expenses:
Marketing and sales	167,070	139,296	333,736	279,482
Research and development	354,416	286,597	704,711	577,492
General and administrative	54,605	51,426	108,132	100,363
Amortization of acquired intangibles	4,302	4,633	8,569	9,597
Restructuring	0	16	0	28
Total costs and expenses	677,251	574,633	1,376,478	1,157,470
Income from operations	299,328	282,888	621,791	601,817
Interest expense	(8,877)	(4,281)	(18,137)	(8,389)
Other income (expense), net	7,973	(5,962)	16,257	(10,862)
Income before provision for income taxes	298,424	272,645	619,911	582,566
Provision for income taxes	77,304	85,725	156,987	160,311
Net income	$ 221,120	$ 186,920	$ 462,924	$ 422,255
Net income per share - basic (usd per share)	$ 0.82	$ 0.69	$ 1.72	$ 1.55
Net Income per share - diluted (usd per share)	$ 0.81	$ 0.68	$ 1.70	$ 1.53
Weighted average common shares outstanding - basic (in shares)	269,714	271,520	269,607	272,028
Weighted average common shares outstanding - diluted (in shares)	272,996	275,172	273,078	276,097
Product and maintenance [Member]
Revenues [Abstract]
Revenue	$ 922,790	$ 802,285	$ 1,886,532	$ 1,648,529
Costs and Expenses:
Cost of sales	74,218	68,717	174,456	141,512
Service [Member]
Revenues [Abstract]
Revenue	53,789	55,236	111,737	110,758
Costs and Expenses:
Cost of sales	$ 22,640	$ 23,948	$ 46,874	$ 48,996