Assets and Liabilities Measured at Fair Value on a Recurring Basis - Schedule of unobservable inputs related to Level 3 fair value measurements (Details) - Level 3: Significant Unobservable Inputs	Jun. 30, 2023	Jun. 30, 2022
Discount Rate | Real Estate Properties and Joint Ventures | Office | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.063	0.058
Discount Rate | Real Estate Properties and Joint Ventures | Office | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.095	0.098
Discount Rate | Real Estate Properties and Joint Ventures | Office | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.074	0.066
Discount Rate | Real Estate Properties and Joint Ventures | Industrial | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.060	0.048
Discount Rate | Real Estate Properties and Joint Ventures | Industrial | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.083	0.080
Discount Rate | Real Estate Properties and Joint Ventures | Industrial | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.070	0.058
Discount Rate | Real Estate Properties and Joint Ventures | Apartment | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.060	0.053
Discount Rate | Real Estate Properties and Joint Ventures | Apartment | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.073	0.070
Discount Rate | Real Estate Properties and Joint Ventures | Apartment | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.065	0.058
Discount Rate | Real Estate Properties and Joint Ventures | Retail | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.063	0.060
Discount Rate | Real Estate Properties and Joint Ventures | Retail | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.115	0.115
Discount Rate | Real Estate Properties and Joint Ventures | Retail | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.074	0.070
Discount Rate | Real Estate Properties and Joint Ventures | Hotel | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.100	0.098
Discount Rate | Real Estate Properties and Joint Ventures | Hotel | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business		0.098
Discount Rate | Real Estate Operating Business | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.100	0.098
Capitalization Rate | Real Estate Properties and Joint Ventures | Office | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.050	0.045
Capitalization Rate | Real Estate Properties and Joint Ventures | Office | Minimum | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.040	0.040
Capitalization Rate | Real Estate Properties and Joint Ventures | Office | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.085	0.085
Capitalization Rate | Real Estate Properties and Joint Ventures | Office | Maximum | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.080	0.080
Capitalization Rate | Real Estate Properties and Joint Ventures | Office | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.062	0.055
Capitalization Rate | Real Estate Properties and Joint Ventures | Office | Weighted Average | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.058	0.050
Capitalization Rate | Real Estate Properties and Joint Ventures | Industrial | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.045	0.033
Capitalization Rate | Real Estate Properties and Joint Ventures | Industrial | Minimum | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.018	0.018
Capitalization Rate | Real Estate Properties and Joint Ventures | Industrial | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.070	0.068
Capitalization Rate | Real Estate Properties and Joint Ventures | Industrial | Maximum | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.063	0.060
Capitalization Rate | Real Estate Properties and Joint Ventures | Industrial | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.053	0.044
Capitalization Rate | Real Estate Properties and Joint Ventures | Industrial | Weighted Average | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.047	0.038
Capitalization Rate | Real Estate Properties and Joint Ventures | Apartment | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.045	0.040
Capitalization Rate | Real Estate Properties and Joint Ventures | Apartment | Minimum | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.040	0.035
Capitalization Rate | Real Estate Properties and Joint Ventures | Apartment | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.058	0.055
Capitalization Rate | Real Estate Properties and Joint Ventures | Apartment | Maximum | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.055	0.050
Capitalization Rate | Real Estate Properties and Joint Ventures | Apartment | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.051	0.045
Capitalization Rate | Real Estate Properties and Joint Ventures | Apartment | Weighted Average | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.046	0.040
Capitalization Rate | Real Estate Properties and Joint Ventures | Retail | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.050	0.050
Capitalization Rate | Real Estate Properties and Joint Ventures | Retail | Minimum | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.048	0.045
Capitalization Rate | Real Estate Properties and Joint Ventures | Retail | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.088	0.085
Capitalization Rate | Real Estate Properties and Joint Ventures | Retail | Maximum | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.083	0.083
Capitalization Rate | Real Estate Properties and Joint Ventures | Retail | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.061	0.056
Capitalization Rate | Real Estate Properties and Joint Ventures | Retail | Weighted Average | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.056	0.052
Capitalization Rate | Real Estate Properties and Joint Ventures | Hotel | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.080	0.078
Capitalization Rate | Real Estate Properties and Joint Ventures | Hotel | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.075	0.075
Capitalization Rate | Real Estate Properties and Joint Ventures | Hotel | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business		0.078
Capitalization Rate | Real Estate Properties and Joint Ventures | Hotel | Weighted Average | Direct Capitalization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business		0.075
Terminal Growth Rate | Real Estate Operating Business | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	0.082	0.071
EBITDA Multiple | Real Estate Operating Business | Market Approach
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Real Estate Properties and Joint Ventures and Real Estate Operating Business	30.0	28.3
Loan to Value Ratio | Loans Payable | Office | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.357	0.356
Loan to Value Ratio | Loans Payable | Office | Minimum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.357	0.356
Loan to Value Ratio | Loans Payable | Office | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.825	0.701
Loan to Value Ratio | Loans Payable | Office | Maximum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.825	0.701
Loan to Value Ratio | Loans Payable | Office | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.550	0.462
Loan to Value Ratio | Loans Payable | Office | Weighted Average | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.550	0.462
Loan to Value Ratio | Loans Payable | Industrial | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.286	0.283
Loan to Value Ratio | Loans Payable | Industrial | Minimum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.286	0.283
Loan to Value Ratio | Loans Payable | Industrial | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.365	0.363
Loan to Value Ratio | Loans Payable | Industrial | Maximum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.365	0.363
Loan to Value Ratio | Loans Payable | Industrial | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.318	0.315
Loan to Value Ratio | Loans Payable | Industrial | Weighted Average | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.318	0.315
Loan to Value Ratio | Loans Payable | Apartment | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.279	0.248
Loan to Value Ratio | Loans Payable | Apartment | Minimum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.279	0.248
Loan to Value Ratio | Loans Payable | Apartment | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.701	0.664
Loan to Value Ratio | Loans Payable | Apartment | Maximum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.701	0.664
Loan to Value Ratio | Loans Payable | Apartment | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.421	0.391
Loan to Value Ratio | Loans Payable | Apartment | Weighted Average | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.421	0.391
Loan to Value Ratio | Loans Payable | Retail | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.479	0.425
Loan to Value Ratio | Loans Payable | Retail | Minimum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.479	0.425
Loan to Value Ratio | Loans Payable | Retail | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.797	0.738
Loan to Value Ratio | Loans Payable | Retail | Maximum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.797	0.738
Loan to Value Ratio | Loans Payable | Retail | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.569	0.460
Loan to Value Ratio | Loans Payable | Retail | Weighted Average | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.569	0.460
Loan to Value Ratio | Loans Receivable, including those with related parties | Office | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.410	0.404
Loan to Value Ratio | Loans Receivable, including those with related parties | Office | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	1.050	0.947
Loan to Value Ratio | Loans Receivable, including those with related parties | Office | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.680	0.722
Loan to Value Ratio | Loans Receivable, including those with related parties | Industrial | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.495	0.495
Loan to Value Ratio | Loans Receivable, including those with related parties | Industrial | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.660	0.660
Loan to Value Ratio | Loans Receivable, including those with related parties | Industrial | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.578	0.578
Loan to Value Ratio | Loans Receivable, including those with related parties | Apartment | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.396	0.364
Loan to Value Ratio | Loans Receivable, including those with related parties | Apartment | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.702	0.765
Loan to Value Ratio | Loans Receivable, including those with related parties | Apartment | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.618	0.475
Loan to Value Ratio | Loans Receivable, including those with related parties | Retail & Hospitality | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.121	0.571
Loan to Value Ratio | Loans Receivable, including those with related parties | Retail & Hospitality | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.566	0.798
Loan to Value Ratio | Loans Receivable, including those with related parties | Retail & Hospitality | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.344	0.656
Equivalency Rate | Loans Payable | Office | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.052	0.035
Equivalency Rate | Loans Payable | Office | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.077	0.050
Equivalency Rate | Loans Payable | Office | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.061	0.041
Equivalency Rate | Loans Payable | Industrial | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.055	0.045
Equivalency Rate | Loans Payable | Industrial | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.056	0.047
Equivalency Rate | Loans Payable | Industrial | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.055	0.046
Equivalency Rate | Loans Payable | Apartment | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.056	0.019
Equivalency Rate | Loans Payable | Apartment | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.075	0.044
Equivalency Rate | Loans Payable | Apartment | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.064	0.032
Equivalency Rate | Loans Payable | Retail | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.057	0.041
Equivalency Rate | Loans Payable | Retail | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.066	0.051
Equivalency Rate | Loans Payable | Retail | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	0.060	0.044
Equivalency Rate | Loans Receivable, including those with related parties | Office | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.067	0.027
Equivalency Rate | Loans Receivable, including those with related parties | Office | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.172	0.096
Equivalency Rate | Loans Receivable, including those with related parties | Office | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.106	0.063
Equivalency Rate | Loans Receivable, including those with related parties | Industrial | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.053	0.029
Equivalency Rate | Loans Receivable, including those with related parties | Industrial | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.083	0.066
Equivalency Rate | Loans Receivable, including those with related parties | Industrial | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.060	0.038
Equivalency Rate | Loans Receivable, including those with related parties | Apartment | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.061	0.029
Equivalency Rate | Loans Receivable, including those with related parties | Apartment | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.085	0.086
Equivalency Rate | Loans Receivable, including those with related parties | Apartment | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.077	0.047
Equivalency Rate | Loans Receivable, including those with related parties | Retail & Hospitality | Minimum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.100	0.022
Equivalency Rate | Loans Receivable, including those with related parties | Retail & Hospitality | Maximum | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.124	0.078
Equivalency Rate | Loans Receivable, including those with related parties | Retail & Hospitality | Weighted Average | Discounted Cash Flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Receivable, including those with related parties	0.123	0.040
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Office | Minimum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.1	1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Office | Maximum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.9	1.3
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Office | Weighted Average | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.3	1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Industrial | Minimum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.1	1.1
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Industrial | Maximum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.1	1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Industrial | Weighted Average | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.1	1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Apartment | Minimum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.1	1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Apartment | Maximum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.3	1.4
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Apartment | Weighted Average | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.1	1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Retail | Minimum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.2	1.2
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Retail | Maximum | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.7	1.5
Weighted Average Cost of Capital Risk Premium Multiple | Loans Payable | Retail | Weighted Average | Net Present Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Loans Payable	1.3	1.3