XML 34 R48.htm IDEA: XBRL DOCUMENT v3.19.3
Inventories (Detail) - USD ($)
$ in Thousands
Sep. 28, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 97,551 $ 89,767
Work in process 9,459 9,199
Finished goods 2,838 2,159
Total $ 109,848 $ 101,125