v3.26.1
FAIR VALUE MEASUREMENTS - Narrative (Details)
$ in Millions
3 Months Ended
Mar. 31, 2026
USD ($)
property
loan
Mar. 31, 2025
USD ($)
property
loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of real estate, number of properties | property   1
Condominium developments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of real estate, number of properties | property 0 0
Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Number of real estate properties secured through foreclosure | property   2
Impairment of real estate, number of properties | property 0 1
Fair Value, Nonrecurring | Condominium developments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of real estate, number of properties | property 0 0
First mortgage loans    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Number of impaired risk-rated loans, nonaccrual status | loan 0  
First mortgage loans | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Allowance for credit losses $ 244.9  
Number of loan investments | loan 6  
Nonaccrual status with a carrying value $ 860.3  
First mortgage loans | Discount Rate | Maximum | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans receivable, measurement input 11.50%  
First mortgage loans | Discount Rate | Minimum | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans receivable, measurement input 9.50%  
First mortgage loans | Terminal Capitalization Rate | Maximum | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans receivable, measurement input 9.50%  
First mortgage loans | Terminal Capitalization Rate | Minimum | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans receivable, measurement input 8.30%  
Commercial Real Estate | First mortgage loans | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of the net real estate asset   $ 151.0
Property    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of real estate assets   7.0
Property | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of real estate assets   7.0
Property | Fair Value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Real estate asset deemed to be impaired   15.0
Property | Fair Value | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Real estate asset deemed to be impaired   $ 15.0
First lien mortgage loan | First mortgage loans | Property One | Discount Rate | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans receivable, measurement input   10.80%
First lien mortgage loan | First mortgage loans | Property One | Terminal Capitalization Rate | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans receivable, measurement input   9.00%
First lien mortgage loan | First mortgage loans | Property Two | Discount Rate | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans receivable, measurement input   10.00%
First lien mortgage loan | First mortgage loans | Property Two | Terminal Capitalization Rate | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans receivable, measurement input   8.50%
First lien mortgage loan | Consolidated Properties | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Number of impaired risk-rated loans, nonaccrual status | loan   2
First lien mortgage loan | Consolidated Properties | Office | Fair Value, Nonrecurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Number of real estate properties secured through foreclosure | property   2