Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Geographic and Customer Information - Summary of Reportable Segments (Detail)

v3.21.1
Geographic and Customer Information - Summary of Reportable Segments (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax $ (9,364) $ 1,575 $ 62
Europe Middle East and Africa [Member]      
Segment Reporting Information [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 3,803 1,105 51
Asia Pacific [Member]      
Segment Reporting Information [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 1,078 182 11
North America [Member]      
Segment Reporting Information [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax $ (14,245) $ 288 $ 0