Quarterly report pursuant to Section 13 or 15(d)

Geographic Information - Summary of Long-lived Assets by Geographic Area (Details)

v3.20.1
Geographic Information - Summary of Long-lived Assets by Geographic Area (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]    
Long-lived assets $ 3,888 $ 3,393
Italy    
Segment Reporting Information [Line Items]    
Long-lived assets $ 1,965 $ 1,772
Italy | Geographic Concentration Risk | Long-Lived Assets    
Segment Reporting Information [Line Items]    
Long-lived assets, Percentage 50.50% 52.20%
India    
Segment Reporting Information [Line Items]    
Long-lived assets $ 1,115 $ 1,162
India | Geographic Concentration Risk | Long-Lived Assets    
Segment Reporting Information [Line Items]    
Long-lived assets, Percentage 28.70% 34.20%
United States    
Segment Reporting Information [Line Items]    
Long-lived assets $ 787 $ 437
United States | Geographic Concentration Risk | Long-Lived Assets    
Segment Reporting Information [Line Items]    
Long-lived assets, Percentage 20.30% 12.90%
Rest of the World    
Segment Reporting Information [Line Items]    
Long-lived assets $ 21 $ 22
Rest of the World | Geographic Concentration Risk | Long-Lived Assets    
Segment Reporting Information [Line Items]    
Long-lived assets, Percentage 0.50% 0.70%