Revenue - Summary of Revenues from Contracts with Customers Disaggregated by Categories (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 8,467	$ 6,324	$ 17,198	$ 13,164
Fixed-price
Disaggregation of Revenue [Line Items]
Revenue	1,652	873	3,539	1,688
Cost-plus
Disaggregation of Revenue [Line Items]
Revenue	4,586	3,925	9,356	8,215
Time and material
Disaggregation of Revenue [Line Items]
Revenue	2,229	1,526	4,303	3,261
Related party
Disaggregation of Revenue [Line Items]
Revenue	8,287	6,268	16,928	13,093
Commercial
Disaggregation of Revenue [Line Items]
Revenue	180	56	270	71
Asset management
Disaggregation of Revenue [Line Items]
Revenue	5,538	4,257	11,535	9,150
Property management
Disaggregation of Revenue [Line Items]
Revenue	2,192	1,712	4,323	3,342
Parking management
Disaggregation of Revenue [Line Items]
Revenue	$ 737	$ 355	$ 1,340	$ 672