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Debt - Unsecured Notes Payable - Additional Information (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Long-term debt outstanding | [1],[2] | $ 1,734,463 | $ 1,881,087
Maximum borrowing capacity |  | 900,000 |
Letters of credit, outstanding amount |  | 2,000 | 2,000
Fund IV |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt outstanding |  | 36,200 | 36,200
Mortgages | Fund Portfolio | Fund II |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt outstanding | [3] | 137,485 | 137,485
Mortgages | Fund Portfolio | Fund IV |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt outstanding | [4] | 115,896 | 115,925
Mortgages | Fund Portfolio | Fund V |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt outstanding |  | 499,360 | 458,960
$400 Million Term Loan | Unsecured Debt |  |  |
Debt Instrument [Line Items] |  |  |
Maximum borrowing capacity |  | 400,000 |
Subscription Line | Unsecured Debt | Fund Portfolio | Fund V |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt outstanding | [5] | $ 0 | $ 80,600
[1] | Includes $151.3 mi llion and $151.4 million, respectively, of variable-rate debt that is subject to interest cap agreements as of the periods presented. The effective fixed rates ranged fro m 4.50% to 6.00%.
[2] | Includes $1,207.6 million and $1,249.8 million, respectively, of variable-rate debt that has been fixed with interest rate swap agreements as of the periods presented. The effective fixed rates ranged from 1.14% to 4.69%.
[3] | The Company has a total borrowing capacity of $198.0 million on th e Fund II mortgage as of both March 31, 2024 and December 31, 2023.
[4] | Includes the outstanding balance on the Fund IV secured bridge facility of $36.2 million as of both March 31, 2024 and December 31, 2023.
[5] | Fund V paid off the subscription line and terminated the outstanding letters of credit during the three months ended March 31, 2024.

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