General form of registration statement for all companies including face-amount certificate companies

Revenues - Summary of Disaggregation of Revenue (Detail)

v3.21.2
Revenues - Summary of Disaggregation of Revenue (Detail) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax $ 14,659 $ 9,411 $ 21,135 $ 13,713
Point in time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 4,461 1,172 5,405 2,505
Over time [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 10,198 8,239 15,730 11,208
US Federal Government and Agencies [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 12,307 7,868 17,050 11,680
Commercial and Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 2,352 1,543 4,085 2,033
US [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 12,359 7,978 17,239 11,908
Middle East [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 1,380 1,197 3,185 1,537
Asia [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 770 214 668 268
Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 150 22 43  
Imagery [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 2,848 408 3,005 623
Data, Software and Analytics [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax 8,267 7,318 15,732 12,702
Engineering and Integration [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from contract with customers excluding assessed tax $ 3,544 $ 1,685 $ 2,398 $ 388