Intangible Assets (Details) - USD ($)	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization, intangible assets	$ 84,900,000		$ 78,500,000
Impairment of intangible assets		$ 0
Amortization of acquired intangible assets	8,514,000	8,721,000
SiliconBlue Technologies Ltd. and Silicon Image, Inc
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	8,687,000	8,907,000
Research and development | SiliconBlue Technologies Ltd. and Silicon Image, Inc
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	173,000	$ 186,000
Patents
Finite-Lived Intangible Assets [Line Items]
Decrease of intangible assets, net of amortization	$ 3,500,000