Stockholders' Equity - Summary of Effects of Stock-Based Compensation on Company's Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2014	Dec. 28, 2013
Stock-Based Compensation Effects in Inventory [Member]
Effects Of Stock Based Compensation [Line Items]
Effects Of Stock Based Compensation	$ 3,160	$ 3,189
Stock-Based Compensation Effects in Deferred Inventory Cost [Member]
Effects Of Stock Based Compensation [Line Items]
Effects Of Stock Based Compensation	13	15
Stock-Based Compensation Effects in Fixed Assets [Member]
Effects Of Stock Based Compensation [Line Items]
Effects Of Stock Based Compensation	$ 126	$ 145