XML 50 R39.htm IDEA: XBRL DOCUMENT v3.19.2
Inventories - Schedule of Inventories (Detail) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 7,752 $ 8,463
Work-in-process 11,421 13,478
Finished products 59,968 54,906
Inventories $ 79,141 $ 76,847