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Revenue, Contract Assets, Contract Liabilities and Remaining Performance Obligations - Additional Information (Detail)

v3.21.2
Revenue, Contract Assets, Contract Liabilities and Remaining Performance Obligations - Additional Information (Detail) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Revenue From Contract With Customer [Line Items]          
Revenue from Contract with Customer, Excluding Assessed Tax $ 18,829 $ 14,037 $ 28,490 $ 18,491  
Contract assets 846   853 493 $ 223
Contract liabilities, current portion 10,914   8,110 4,199  
Revenue remaining performance obligation amount $ 53,166   $ 31,990    
Revenue performance obligation expected timing of satisfaction explantion expects to recognize 52% of these future commitments over the next 12 months and the remaining 48% thereafter as revenue when the performance obligations are met.   expects to recognize 80.4% of these future commitments over the next 12 months and the remaining 19.6% thereafter as revenue when the performance obligations are met.    
Contract liabilities       4,550  
Contract liabilities,Non-Current portion       $ 351  
Expected Time Of Satisfaction Over Next Twelve Months [Member]          
Revenue From Contract With Customer [Line Items]          
Revenue remaining performance obligation percentage 52.00%   80.40%    
Expected Time Of Satisfaction Thereafter [Member]          
Revenue From Contract With Customer [Line Items]          
Revenue remaining performance obligation percentage 48.00%   19.60%    
Revenue Benchmark [Member] | Customer Concentration Risk [Member]          
Revenue From Contract With Customer [Line Items]          
Concentration Risk, Percentage 100.00% 100.00% 100.00% 100.00%  
Data Solutions Contracts [Member]          
Revenue From Contract With Customer [Line Items]          
Revenue from Contract with Customer, Excluding Assessed Tax $ 8,074 $ 4,202 $ 7,677 $ 3,469  
Data Solutions Contracts [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]          
Revenue From Contract With Customer [Line Items]          
Concentration Risk, Percentage 43.00% 30.00% 26.90% 18.80%  
Space Services Solution Contracts [Member]          
Revenue From Contract With Customer [Line Items]          
Revenue from Contract with Customer, Excluding Assessed Tax $ 10,755 $ 9,835 $ 20,813 $ 15,022  
Space Services Solution Contracts [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]          
Revenue From Contract With Customer [Line Items]          
Concentration Risk, Percentage 57.00% 70.00% 73.10% 81.20%