XML 50 R40.htm IDEA: XBRL DOCUMENT v3.20.2
Inventories - Inventories Stated at Lower of Average Cost or Net Realizable Value (Detail) - USD ($)
$ in Thousands
Jun. 27, 2020
Dec. 28, 2019
Inventory Disclosure [Abstract]    
Raw materials $ 11,280 $ 15,286
Work-in-progress 4,363 4,748
Finished goods 6,567 4,873
Inventories $ 22,210 $ 24,907