Goodwill and Intangible Assets, Net (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 01, 2020	Jul. 05, 2020	Jun. 30, 2019	Jul. 05, 2020	Jun. 30, 2019	Dec. 29, 2019
Goodwill and Intangible Assets Net [Line Items]
Change in any one of the input assumptions for the various reporting units	10.00%
Goodwill		$ 3,107,373		$ 3,107,373		$ 3,111,227
Total amortization expense related to finite-lived intangible assets		46,700	$ 41,200	94,000	$ 79,900
Future Amortization Expense, Year One		94,200		94,200
Future Amortization Expense, Year Two		173,500		173,500
Future Amortization Expense, Year Three		157,200		157,200
Future Amortization Expense, Year Four		133,100		133,100
Future Amortization Expense, Year Five		111,800		111,800
Finite-Lived Intangible Assets, Net		1,117,880		1,117,880		1,212,702
Intangible assets, net		1,188,464		1,188,464		1,283,286
Minimum [Member]
Goodwill and Intangible Assets Net [Line Items]
Long-term terminal growth rates for reporting units	3.00%
Discount rates for reporting units	9.00%
Maximum [Member]
Goodwill and Intangible Assets Net [Line Items]
Long-term terminal growth rates for reporting units	5.00%
Discount rates for reporting units	14.50%
Patents [Member]
Goodwill and Intangible Assets Net [Line Items]
Gross amortizable intangible assets		30,832		30,832		30,831
Less: Accumulated amortization		28,165		28,165		27,423
Finite-Lived Intangible Assets, Net		2,667		2,667		3,408
Trade Names And Trademarks [Member]
Goodwill and Intangible Assets Net [Line Items]
Gross amortizable intangible assets		87,945		87,945		87,997
Less: Accumulated amortization		43,826		43,826		40,295
Finite-Lived Intangible Assets, Net		44,119		44,119		47,702
Licensing Agreements [Member]
Goodwill and Intangible Assets Net [Line Items]
Gross amortizable intangible assets		58,406		58,406		58,496
Less: Accumulated amortization		51,397		51,397		49,733
Finite-Lived Intangible Assets, Net		7,009		7,009		8,763
Core Technology [Member]
Goodwill and Intangible Assets Net [Line Items]
Gross amortizable intangible assets		686,482		686,482		689,089
Less: Accumulated amortization		349,442		349,442		320,926
Finite-Lived Intangible Assets, Net		337,040		337,040		368,163
Customer Relationships [Member]
Goodwill and Intangible Assets Net [Line Items]
Gross amortizable intangible assets		1,162,752		1,162,752		1,161,526
Less: Accumulated amortization		437,073		437,073		378,188
Finite-Lived Intangible Assets, Net		725,679		725,679		783,338
In-process Research and Development [Member]
Goodwill and Intangible Assets Net [Line Items]
Gross amortizable intangible assets		$ 1,366		$ 1,366		$ 1,328