Goodwill and Intangible Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Sep. 27, 2015
Goodwill and Intangible Assets Disclosure [Line Items]
Amortizable intangible assets					$ 733,200	$ 357,800
Goodwill	$ 2,447,700		$ 1,139,300		2,447,700	1,139,300
Goodwill [Roll Forward]
Balance as of September 27, 2015			1,139,300
Additions from acquisition			1,435,000
Reductions from divestitures			(125,000)
Adjustments from prior acquisitions			(1,600)
Balance as of July 3, 2016	2,447,700		2,447,700
Amortization of intangible assets	44,900	$ 24,800	115,566	$ 71,084
Completed technology
Goodwill and Intangible Assets Disclosure [Line Items]
Amortizable intangible assets					604,400	238,000
Goodwill [Roll Forward]
Amortization of intangible assets	32,400	13,300	76,932	36,179
Customer relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Amortizable intangible assets					124,700	119,100
Goodwill [Roll Forward]
Amortization of intangible assets	11,600	11,300	34,518	33,702
Backlog, trade name and other
Goodwill and Intangible Assets Disclosure [Line Items]
Amortizable intangible assets					4,100	700
Goodwill [Roll Forward]
Amortization of intangible assets	$ 900	$ 200	$ 4,116	$ 1,203
In-process research and development
Goodwill and Intangible Assets Disclosure [Line Items]
Non-amortizable intangible assets					$ 241,000	$ 0