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Inventories - Schedule of Inventory (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Finished goods $ 9,737 $ 5,439
Raw materials 8,510 5,502
Total inventories 18,247 10,941
Current Portion 10,653 10,941
Long-term portion $ 7,594 $ 0