Intangible Assets (Amortization Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 04, 2015	Mar. 29, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	$ 2,942	$ 737
SiliconBlue Technologies Ltd. and Silicon Image, Inc
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	3,003	737
Research and development | SiliconBlue Technologies Ltd. and Silicon Image, Inc
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	$ 61	$ 0