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v3.25.1

Notes Payable, Bank Credit Facility, Interest and Amortization of Deferred Debt Costs - Narrative (Details) | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2025 USD ($) | Oct. 01, 2030 | Oct. 01, 2027 | Dec. 31, 2024 USD ($) | Aug. 23, 2022 USD ($) swap
Debt Instrument [Line Items] |  |  |  |  |
Principal amount | $ 1,564,135,000 |  |  | $ 1,600,000,000 |
Notes payable, principal balance | 1,370,000,000 |  |  |  |
Debt outstanding with variable-rate | 196,000,000 |  |  | 187,000,000.0 |
Carrying value of properties collateralizing mortgage notes | $ 1,600,000,000 |  |  | 1,600,000,000 |
Debt outstanding with fixed-rate |  |  |  | 1,370,000,000 |
Interest rate spread on LIBOR | 0.10% |  |  |  |
Revolving credit facility payable, net | $ 195,683,000 |  |  | 186,489,000 |
Number of interest rate swaps | swap |  |  |  |  | 2
Long-term debt | 1,544,599,000 |  |  |  |
Unamortized deferred debt costs | 19,536,000 |  |  | 20,100,000 |
Debt issuance costs amortization | 11,900,000 |  |  | 11,200,000 |
Thruway Mortgage |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal amount | 69,500,000 |  |  |  |
Long-term debt | $ 17,500,000 |  |  |  |
Twinbrook Quarter |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Guarantor Obligations, Liquidation Proceeds, Percentage | 100.00% |  |  |  |
Twinbrook Quarter |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, remaining borrowing capacity | $ 14,100,000 |  |  |  |
Long-term debt | 130,900,000 |  |  |  |
Hampden House |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, remaining borrowing capacity | $ 49,100,000 |  |  |  |
Guarantor Obligations, Liquidation Proceeds, Percentage | 100.00% |  |  |  |
Guarantor obligations, current carrying value | $ 26,600,000 |  |  |  |
Guarantor obligations, maximum exposure | $ 83,900,000 |  |  |  |
Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate spread on LIBOR | 1.40% |  |  |  |
Term Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate spread on LIBOR | 1.35% |  |  |  |
Unsecured Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, remaining borrowing capacity | $ 132,400,000 |  |  |  |
Revolving credit facility payable, net | 296,000,000.0 |  |  |  |
Letter of Credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Revolving credit facility payable, net | 185,000 |  |  |  |
Line of Credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity | 525,000,000.0 |  |  |  |
Line of Credit | Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity | 425,000,000.0 |  |  |  |
Line of Credit | Term Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ 100,000,000.0 |  |  |  |
Line of credit facility, extension term | 1 year |  |  |  |
Secured Debt | Term Loan |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  | $ 100,000,000.0
Secured Debt | Term Loan | Agreement Ending October 1, 2030 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Derivative, notional amount |  |  |  |  | 50,000,000.0
Secured Debt | Term Loan | Agreement Ending October 1, 2030 | Forecast |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Derivative, fixed interest rate (as a percent) |  | 2.91% |  |  |
Secured Debt | Term Loan | Agreement Ending October 1, 2027 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Derivative, notional amount |  |  |  |  | $ 50,000,000.0
Secured Debt | Term Loan | Agreement Ending October 1, 2027 | Forecast |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Derivative, fixed interest rate (as a percent) |  |  | 2.96% |  |
Mortgages | Kentlands Place Mortgage |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt |  |  |  | $ 26,200,000 |

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