Revenue - Summary of Disaggregation of Revenue, Property Management and Leasing Fees (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 104,134	$ 58,550
Property Management And Leasing Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue	18,279	16,747
Property Management And Leasing Fees [Member] | Seniors Housing [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,106	6,557
Property Management And Leasing Fees [Member] | Multifamily [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,313	4,094
Property Management And Leasing Fees [Member] | Office Building [Member]
Disaggregation of Revenue [Line Items]
Revenue	4,264	6,096
Property Management And Leasing Fees [Member] | Single-Family Rental[Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 1,596	$ 0