Post-effective amendment to a registration statement that is not immediately effective upon filing

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

v3.21.2
Geographic and Customer Information - Summary of Reportable Segments (Parenthetical) (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Germany [Member]              
Segment Reporting Information [Line Items]              
Revenues $ 749 $ 736 $ 1,151 $ 1,189 $ 3,635 $ 983 $ 51
United States [Member]              
Segment Reporting Information [Line Items]              
Increase decrease in revenues from contract with customer         $ 14,800