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Segment and Geographic Information - Schedule Of Long-Lived Assets By Geographical Area (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Segment Reporting Information [Line Items]    
Long-lived assets $ 42,340 $ 41,065
United States    
Segment Reporting Information [Line Items]    
Long-lived assets 41,829 40,500
China    
Segment Reporting Information [Line Items]    
Long-lived assets $ 511 $ 565