Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended					6 Months Ended	12 Months Ended
	Dec. 30, 2017	Sep. 30, 2017	Apr. 01, 2017	Oct. 01, 2016	Jan. 02, 2016	Jul. 01, 2017	Dec. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets				$ 7,900			$ 32,431	$ 7,866
Developed technology
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets							32,431	0
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets							0	7,866
Patents
Finite-Lived Intangible Assets [Line Items]
Proceeds from sale of intangible assets			$ 18,000
Decrease of intangible assets						$ 3,500
Impairment of intangible assets								0
Silicon Image, Inc | Developed technology
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets		$ 36,200					$ 32,400
Reduction to preliminary impairment charge	$ 3,800
Qterics | Disposal Group, Disposed of by Sale
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets					$ 9,000
Qterics | Disposal Group, Disposed of by Sale | Developed technology
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets								3,900
Qterics | Disposal Group, Disposed of by Sale | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets								$ 5,100