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Notes Payable, Bank Credit Facility, Interest and Amortization of Deferred Debt Costs - Scheduled Maturities of Debt, Including Scheduled Principal Amortization (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Principal Payments
April 1 through December 31, 2025	$ 222,863,000
2026	168,198,000
2027	133,706,000
2028	52,280,000
2029	60,553,000
2030	58,205,000
Thereafter	868,330,000
Principal amount	1,564,135,000	$ 1,600,000,000
Unamortized deferred debt costs	19,536,000	20,100,000
Net	1,544,599,000
Debt outstanding with variable-rate	196,000,000	$ 187,000,000.0
Line of Credit
Principal Payments
Line of credit facility, maximum borrowing capacity	525,000,000.0
Term Facility | Line of Credit
Principal Payments
Line of credit facility, maximum borrowing capacity	$ 100,000,000.0

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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