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Goodwill and Intangible Assets Finite-Lived Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 09, 2015
Oct. 03, 2015
Jan. 03, 2015
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets   $ 21,364 $ 7,745
Finite-Lived Intangible Assets, Accumulated Amortization   2,831 2,118
Developed technologies [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets   18,850 [1] 5,231
Finite-Lived Intangible Assets, Accumulated Amortization   1,796 1,342
Customer Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets   2,413 2,413
Finite-Lived Intangible Assets, Accumulated Amortization   934 675
Trademarks and Trade Names [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets   101 101
Finite-Lived Intangible Assets, Accumulated Amortization   $ 101 $ 101
BAM Labs, Inc. [Member] | Developed Technology Rights [Member]      
Finite-Lived Intangible Assets [Line Items]      
Purchased intangible assets $ 13,600    
[1] In September 2015, in connection with the acquisition of BAM Labs, Inc., we acquired $13.6 million of definite-lived intangible assets consisting of developed technologies.