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Revenue - Summary of Revenues from Contracts with Customers Disaggregated by Categories (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]    
Total revenue $ 31,093 $ 22,487
Fixed-price    
Disaggregation of Revenue [Line Items]    
Total revenue 7,626 3,981
Cost-plus    
Disaggregation of Revenue [Line Items]    
Total revenue 16,729 13,702
Time and material    
Disaggregation of Revenue [Line Items]    
Total revenue 6,738 4,804
Related party    
Disaggregation of Revenue [Line Items]    
Total revenue 30,887 22,382
Commercial    
Disaggregation of Revenue [Line Items]    
Total revenue 206 105
Asset management    
Disaggregation of Revenue [Line Items]    
Total revenue 22,539 16,057
Property management    
Disaggregation of Revenue [Line Items]    
Total revenue 6,939 5,410
Parking    
Disaggregation of Revenue [Line Items]    
Total revenue $ 1,615 $ 1,020