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Intangible Assets, net - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]      
Beginning balance   $ 9,046 $ 18,068
Assets Acquired Pursuant to Business Combination $ 0 0  
Impairment Charges 0 7,628  
Amortization of intangible assets 793 1,394 1,002
Ending balance 8,253 9,046  
Gross Carrying Amount 10,300 10,570  
Accumulated Amortization (2,047) (1,524)  
Developed technology      
Finite-Lived Intangible Assets [Line Items]      
Beginning balance   9,046 17,956
Assets Acquired Pursuant to Business Combination 0 0  
Impairment Charges 0 7,628  
Amortization of intangible assets 793 1,282  
Ending balance 8,253 9,046  
Gross Carrying Amount 10,300 10,300  
Accumulated Amortization (2,047) (1,254)  
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Beginning balance     112
Assets Acquired Pursuant to Business Combination   0  
Impairment Charges   0  
Amortization of intangible assets   112  
Ending balance   0  
Gross Carrying Amount 0 270  
Accumulated Amortization 0 (270)  
us-gaap_DisclosureTotal      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets 793    
Purchased Intangible Assets      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets $ 793 $ 1,394 $ 1,002