Annual report pursuant to Section 13 and 15(d)

Revenue - Summary of Disaggregation of Revenue, Property Management and Leasing Fees (Detail)

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Revenue - Summary of Disaggregation of Revenue, Property Management and Leasing Fees (Detail) - Property Management And Leasing Fees [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disaggregation of Revenue [Line Items]      
Revenue $ 69,654 $ 59,986 $ 59,754
Seniors Housing [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 25,560 27,227 26,295
Multifamily [Member]      
Disaggregation of Revenue [Line Items]      
Revenue 17,955 15,352 13,202
Office Building [Member]      
Disaggregation of Revenue [Line Items]      
Revenue $ 26,139 $ 17,407 $ 20,257