Annual report pursuant to Section 13 and 15(d)

GENERAL PARTNER NOTES PAYABLE - Summary of Carrying Value of General Partner Notes Payable (Details)

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GENERAL PARTNER NOTES PAYABLE - Summary of Carrying Value of General Partner Notes Payable (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
General Partner Notes Payable [Line Items]      
General Partner Notes Payable, at fair value $ 270,270 $ 144,577  
Interest expense related to distributions 2,100 2,200 $ 1,400
Affiliated Entity      
General Partner Notes Payable [Line Items]      
Commitment 14,075    
General Partner Notes Payable, at fair value 8,633 12,003  
Bridge Seniors Housing Fund I | Affiliated Entity      
General Partner Notes Payable [Line Items]      
Commitment 4,775    
General Partner Notes Payable, at fair value 4,319 5,309  
Bridge Multifamily Fund III | Affiliated Entity      
General Partner Notes Payable [Line Items]      
Commitment 9,300    
General Partner Notes Payable, at fair value $ 4,314 $ 6,694