v3.10.0.1

Description of Business and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 29, 2018 | Dec. 30, 2017
Entity Information [Line Items] |  |
Accumulated deficit | $ (172,632) | $ (177,145)
Accounting Standards Update 2014-09 |  |
Entity Information [Line Items] |  |
Accumulated deficit |  | $ 100
Minimum |  |
Entity Information [Line Items] |  |
Fiscal period duration | 364 days |
Maximum |  |
Entity Information [Line Items] |  |
Fiscal period duration | 371 days |

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