v3.25.2
Assets and Liabilities Measured at Fair Value on a Recurring Basis - Schedule of unobservable inputs related to Level 3 fair value measurements (Details)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, preemptive rights offering, percentage 100.00% 100.00%
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.068 0.065
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.110 0.110
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.085 0.085
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.067 0.068
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.083 0.085
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.073 0.073
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.065 0.068
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.083 0.080
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.070 0.070
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.065 0.068
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.120 0.120
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.074 0.077
Discount Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Hotel | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.100 0.100
Discount Rate | Real Estate Operating Business | Level 3: Significant Unobservable Inputs | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.135 0.125
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.055 0.050
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Minimum | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.050 0.050
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.095 0.095
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Maximum | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.120 0.138
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.069 0.069
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.069 0.069
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.053 0.053
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.035 0.043
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.068 0.070
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.063 0.065
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.057 0.057
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.051 0.053
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.050 0.050
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Minimum | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.045 0.045
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.073 0.068
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Maximum | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.065 0.065
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.055 0.056
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.050 0.051
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.055 0.055
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Minimum | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.050 0.053
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.095 0.095
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Maximum | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.090 0.090
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.063 0.066
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Retail | Weighted Average | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.060 0.061
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Hotel | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.083 0.083
Capitalization Rate | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Hotel | Income Approach—Direct Capitalization    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.078 0.078
Terminal Growth Rate | Real Estate Operating Business | Level 3: Significant Unobservable Inputs | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 0.119 0.108
EBITDA Multiple | Real Estate Operating Business | Level 3: Significant Unobservable Inputs | Market Approach    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 30.4 31.7
Terminal EBITDA Multiple | Real Estate Operating Business | Level 3: Significant Unobservable Inputs | Market Approach    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input 20.0 20.0
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Office | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.399 0.527
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Office | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.792 0.782
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.592 0.657
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.000 0.358
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.000 0.726
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.000 0.543
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Residential | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.585 0.699
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Residential | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.705 0.720
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.667 0.710
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Retail & Hospitality | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.669 0.669
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Retail & Hospitality | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.669 0.669
Loan to Value Ratio | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Retail & Hospitality | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.669 0.669
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.437 0.432
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Minimum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.437 0.432
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.796 0.784
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Maximum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.796 0.784
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.737 0.699
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.737 0.699
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.300 0.300
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.300 0.300
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.406 0.405
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.406 0.405
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.349 0.341
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.349 0.341
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.462 0.456
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Minimum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.462 0.456
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.718 0.738
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Maximum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.718 0.738
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.590 0.577
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.590 0.577
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.476 0.485
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Minimum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.476 0.485
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.734 0.731
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Maximum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.734 0.731
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.532 0.540
Loan to Value Ratio | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Weighted Average | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.532 0.540
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Office | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.077 0.088
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Office | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.434 0.326
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.141 0.145
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.000 0.053
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.000 0.083
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.000 0.064
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Residential | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.074 0.077
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Residential | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.085 0.090
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.077 0.081
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Retail & Hospitality | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.582 0.240
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Retail & Hospitality | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.582 0.240
Equivalency Rate | Loans Receivable, including those with related parties | Level 3: Significant Unobservable Inputs | Retail & Hospitality | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Loans receivable, measurement input 0.582 0.240
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.059 0.060
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.061 0.065
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.060 0.064
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.056 0.060
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.060 0.061
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.058 0.060
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.051 0.057
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.067 0.071
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.058 0.064
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Minimum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.060 0.057
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Maximum | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.080 0.072
Equivalency Rate | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Weighted Average | Income Approach—Discounted Cash Flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 0.065 0.058
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Minimum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.1 1.1
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Maximum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.8 1.7
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Office | Weighted Average | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.7 1.4
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Minimum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.1 1.1
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Maximum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.1 1.1
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Industrial | Weighted Average | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.1 1.1
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Minimum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.2 1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Maximum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.4 1.4
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Residential | Weighted Average | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.3 1.3
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Minimum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.2 1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Maximum | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.5 1.4
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Level 3: Significant Unobservable Inputs | Retail | Weighted Average | Net Present Value    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term debt, measurement input 1.2 1.3
Measurement Input, Price Per Projected Unit | Real Estate Properties and Joint Ventures | Level 3: Significant Unobservable Inputs | Land | Sales Comparison Approach    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Debt securities, available-for-sale, measurement input, amount $ 55.00 $ 55.00