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Intangible Assets and Goodwill - Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 14,687 $ 14,625
Accumulated amortization (7,278) (6,280)
Net value 7,409 8,345
Patents    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 6,261 6,199
Development programs    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 7,200 7,200
Developed technology    
Finite-Lived Intangible Assets [Line Items]    
Average amortization period 5 years  
Gross carrying amount $ 1,226 $ 1,226
Minimum | Patents    
Finite-Lived Intangible Assets [Line Items]    
Average amortization period 3 years  
Minimum | Development programs    
Finite-Lived Intangible Assets [Line Items]    
Average amortization period 2 years  
Maximum | Patents    
Finite-Lived Intangible Assets [Line Items]    
Average amortization period 5 years  
Maximum | Development programs    
Finite-Lived Intangible Assets [Line Items]    
Average amortization period 4 years