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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories, Net of Valuation Allowances
Our inventories consisted of the following (in thousands):
As of December 31,
20202019
Finished goods$48,371 $49,853 
Parts and components2,769 4,915 
   Total inventories$51,140 $54,768