Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	$ 52,746	$ 45,334	$ 155,860	$ 138,723
Cost of product and maintenance
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	885	668	2,601	2,042
Cost of services
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	1,158	850	3,177	2,599
Marketing and sales
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	10,784	9,699	32,284	29,826
Research and development
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	32,957	28,652	97,101	87,688
General and administrative
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	$ 6,962	$ 5,465	$ 20,697	$ 16,568