Summary of Significant Accounting Policies - Summary of Product Revenue by Geographical Locations of Customers (Detail) - Product - USD ($) $ in Thousands |
3 Months Ended | |
---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
|
Disaggregation Of Revenue [Line Items] | ||
Total product revenue | $ 18,611 | $ 17,504 |
Europe, Middle East and Africa | ||
Disaggregation Of Revenue [Line Items] | ||
Total product revenue | 12,220 | 12,653 |
North America | ||
Disaggregation Of Revenue [Line Items] | ||
Total product revenue | 6,077 | 4,551 |
Other | ||
Disaggregation Of Revenue [Line Items] | ||
Total product revenue | $ 314 | $ 300 |