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Inventory (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Inventory, finished goods, trial and evaluation hardware $ 2,100 $ 1,400
Raw materials 43,082 20,789
Finished goods 54,528 18,056
Total inventory $ 97,610 $ 38,845