Annual report pursuant to Section 13 and 15(d)

Quarterly Data (unaudited) - Schedule of Quarterly Data (Detail)

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Quarterly Data (unaudited) - Schedule of Quarterly Data (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 28, 2019
Sep. 28, 2019
Jun. 29, 2019
Mar. 30, 2019
Dec. 29, 2018
Sep. 29, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Quarterly Financial Information Disclosure [Abstract]                      
Net sales $ 284,798 $ 317,277 $ 324,628 $ 287,659 $ 276,587 $ 243,839 $ 246,154 $ 207,595 $ 1,214,362 $ 974,175 $ 838,368
Income (loss) from operations (11,068) 9,952 8,546 265 (275) 6,647 13,011 8,060 7,695 27,443 35,504
Net loss $ (34,097) $ (14,526) $ (19,495) $ (35,268) $ (35,085) $ (10,708) $ (13,531) $ (10,317) $ (103,386) $ (69,641) $ 58,648