Goodwill and Intangible Assets Definite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016
Definite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 21,365	$ 21,365
Accumulated Amortization	9,219	5,990
Developed Technologies [Member]
Definite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	18,851	18,851
Accumulated Amortization	6,705	4,524
Customer Relationships [Member]
Definite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,413	2,413
Accumulated Amortization	2,413	1,365
Trade name/trademarks [Member]
Definite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	101	101
Accumulated Amortization	$ 101	$ 101