Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Revenue:
Total revenue	$ 2,682,891	$ 2,336,319	$ 2,138,022
Costs and expenses:
Marketing and sales	516,460	481,673	439,669
Research and development	1,033,732	935,938	884,816
General and administrative	154,425	139,806	133,406
Amortization of acquired intangibles	18,009	12,128	14,086
Restructuring and other charges	9,215	8,621	11,089
Total costs and expenses	2,037,339	1,844,523	1,741,813
Income from operations	645,552	491,796	396,209
Interest expense	(20,749)	(18,829)	(23,139)
Other income, net	7,945	6,001	3,320
Income before provision (benefit) for income taxes	632,748	478,968	376,390
Provision (benefit) for income taxes	42,104	(510,011)	30,613
Net income	$ 590,644	$ 988,979	$ 345,777
Net income per share - basic (in usd per share)	$ 2.16	$ 3.62	$ 1.26
Net income per share - diluted (in usd per share)	$ 2.11	$ 3.53	$ 1.23
Weighted average common shares outstanding - basic (shares)	273,728	273,239	273,729
Weighted average common shares outstanding - diluted (shares)	279,641	280,515	281,144
Product and maintenance
Revenue:
Total revenue	$ 2,536,617	$ 2,204,615	$ 1,997,887
Costs and expenses:
Cost of sales	231,026	189,146	173,011
Services
Revenue:
Total revenue	146,274	131,704	140,135
Costs and expenses:
Cost of sales	$ 74,472	$ 77,211	$ 85,736