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Inventories - Schedule of Inventories (Detail) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Inventory Disclosure [Abstract]    
Raw materials and purchased parts $ 8,637 $ 5,490
Work in progress 69 66
Finished goods 29,145 21,493
Total inventories $ 37,851 $ 27,049