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Geographic Information - Schedule of Total Revenue Based on Customer's Location (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]                      
Total revenue $ 62,655 $ 56,608 $ 52,500 $ 53,764 $ 60,316 $ 52,833 $ 49,189 $ 50,290 $ 225,527 $ 212,628 $ 232,223
Americas                      
Segment Reporting Information [Line Items]                      
Total revenue                 98,150 89,944 112,506
Japan                      
Segment Reporting Information [Line Items]                      
Total revenue                 67,050 59,454 55,205
Asia Pacific, excluding Japan                      
Segment Reporting Information [Line Items]                      
Total revenue                 29,760 35,689 36,897
EMEA                      
Segment Reporting Information [Line Items]                      
Total revenue                 $ 30,567 $ 27,541 $ 27,615