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Revenue - Summary of Revenues from Contracts with Customers Disaggregated by Categories (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 44,721	$ 39,313
Fixed-price
Disaggregation of Revenue [Line Items]
Total revenue	6,255	7,048
Cost-plus
Disaggregation of Revenue [Line Items]
Total revenue	26,170	22,652
Variable
Disaggregation of Revenue [Line Items]
Total revenue	12,296	9,613
Related party
Disaggregation of Revenue [Line Items]
Total revenue	43,568	38,719
Commercial
Disaggregation of Revenue [Line Items]
Total revenue	1,153	594
Asset management
Disaggregation of Revenue [Line Items]
Total revenue	29,278	26,680
Property management
Disaggregation of Revenue [Line Items]
Total revenue	10,604	9,398
Parking management
Disaggregation of Revenue [Line Items]
Total revenue	$ 4,839	$ 3,235

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