Quarterly report pursuant to Section 13 or 15(d)

REVENUE -Schedule of Disaggregation of Revenue (Details)

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REVENUE -Schedule of Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Disaggregation of Revenue [Line Items]    
Revenue $ 91,448 $ 104,134
Fund management fees    
Disaggregation of Revenue [Line Items]    
Revenue 53,849 52,700
Property management and leasing fees    
Disaggregation of Revenue [Line Items]    
Revenue 19,899 18,279
Construction management fees    
Disaggregation of Revenue [Line Items]    
Revenue 3,285 1,887
Transaction fees    
Disaggregation of Revenue [Line Items]    
Revenue 2,377 21,998
Funds | Fund management fees    
Disaggregation of Revenue [Line Items]    
Revenue 52,135 51,209
Joint ventures and separately managed accounts | Fund management fees    
Disaggregation of Revenue [Line Items]    
Revenue 1,714 1,491
Seniors Housing | Property management and leasing fees    
Disaggregation of Revenue [Line Items]    
Revenue 6,868 7,106
Seniors Housing | Construction management fees    
Disaggregation of Revenue [Line Items]    
Revenue 145 70
Multifamily | Property management and leasing fees    
Disaggregation of Revenue [Line Items]    
Revenue 6,736 5,313
Multifamily | Construction management fees    
Disaggregation of Revenue [Line Items]    
Revenue 2,236 1,383
Office | Property management and leasing fees    
Disaggregation of Revenue [Line Items]    
Revenue 3,895 4,264
Office | Construction management fees    
Disaggregation of Revenue [Line Items]    
Revenue 831 434
Logistics | Construction management fees    
Disaggregation of Revenue [Line Items]    
Revenue 71 0
Single-Family Rental | Property management and leasing fees    
Disaggregation of Revenue [Line Items]    
Revenue 2,400 1,596
Single-Family Rental | Construction management fees    
Disaggregation of Revenue [Line Items]    
Revenue 2 0
Acquisition fees | Transaction fees    
Disaggregation of Revenue [Line Items]    
Revenue 173 16,597
Brokerage fees | Transaction fees    
Disaggregation of Revenue [Line Items]    
Revenue $ 2,204 $ 5,401