Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	$ 50,518	$ 46,907	$ 103,114	$ 93,389
Cost of product and maintenance
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	909	683	1,716	1,374
Cost of services
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	992	869	2,019	1,749
Marketing and sales
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	10,294	10,116	21,500	20,127
Research and development
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	31,286	29,690	64,144	59,036
General and administrative
Share-based compensation expense and allocation by cost [Line Items]
Stock-based compensation expense	$ 7,037	$ 5,549	$ 13,735	$ 11,103