Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Oct. 01, 2016	Dec. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Total identified finite-lived intangible assets, gross			$ 175,055
In-process research and development			22,341
Total identified intangible assets, gross		$ 184,026	197,396
Total identified finite-lived Intangible assets, net of amortization		51,308	96,522
Impairment	$ (7,900)	(32,431)	(7,866)
Accumulated Amortization		(100,287)	(70,667)
Total identified intangible assets, net of amortization		$ 51,308	$ 118,863
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)		4 years 8 months 12 days	4 years 8 months
Total identified finite-lived intangible assets, gross		$ 158,700	$ 141,359
Total identified finite-lived Intangible assets, net of amortization		44,422	85,866
Impairment		(32,431)	0
Accumulated Amortization		$ (81,847)	$ (55,493)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)		5 years 8 months 11 days	6 years 1 month
Total identified finite-lived intangible assets, gross		$ 22,934	$ 30,800
Total identified finite-lived Intangible assets, net of amortization		6,238	9,240
Impairment		0	(7,866)
Accumulated Amortization		$ (16,696)	$ (13,694)
Licensed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)		3 years 6 months	3 years 4 months
Total identified finite-lived intangible assets, gross		$ 2,392	$ 2,127
Total identified finite-lived Intangible assets, net of amortization		648	926
Impairment		0	0
Accumulated Amortization		$ (1,744)	$ (1,201)
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)			5 years
Total identified finite-lived intangible assets, gross			$ 769
Total identified finite-lived Intangible assets, net of amortization			490
Impairment			0
Accumulated Amortization			$ (279)