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Summary of Significant Accounting Policies and Basis of Presentation - Schedule of Adoption of Guidance Using Retrospective Method Resulted in Decreased Net Sales and Cost of Sales (Detail) - Accounting Standards Update 2014-09 [Member] - USD ($)
$ in Thousands
 3 Months Ended 4 Months Ended 12 Months Ended
Dec. 30, 2017
Oct. 07, 2017
Jul. 15, 2017
Dec. 31, 2016
Oct. 08, 2016
Jul. 16, 2016
Apr. 22, 2017
Apr. 23, 2016
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]                      
Decrease in net sales $ 38,725 $ 38,246 $ 38,510 $ 43,168 $ 42,382 $ 38,594 $ 48,802 $ 49,372 $ 177,100 $ 164,283 $ 173,516
Decrease in cost of sales $ 38,725 $ 38,246 $ 38,510 $ 43,168 $ 42,382 $ 38,594 $ 48,802 $ 49,372 $ 177,100 $ 164,283 $ 173,516