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Notes Payable (Narrative) (Details)
$ in Thousands

3 Months Ended

Jan. 04, 2024

USD ($)

Mar. 31, 2024

USD ($)

yr

Mar. 31, 2023

USD ($)

Dec. 31, 2023

USD ($)

Notes Payable

^[1]

$ 3,553,500

$ 3,715,400

Unamortized debt discounts and debt issuance costs

17,500

5,500

Available amount under unsecured credit facility

1,200,000

Repayment of notes payable

550,000

$ 0

Gain (Loss) on Extinguishment of Debt

$ (921)

$ 0

Weighted Average Interest Rate

^[2],[3]

4.20%

Weighted average maturity of indebtedness (including unsecured line of credit) (in years) | yr

6.6

Secured notes payable

$ 330,184

330,127

Letter Of Credit [Member]

Maximum Ability to Issue Letters of Credit Under Unsecured Credit Facility

50,000

Long-term Line of Credit

27,700

Outstanding balance under credit facility

$ 27,700

6.13% Unsecured revolving credit facility

Terms Of Bid Rate Loans

180 days

Value not exceeding the amount available under the line of credit

$ 600,000

6.13% Unsecured revolving credit facility | September 2022 Credit Agreement

Maximum borrowing capacity under unsecured credit facility

$ 1,200,000

6.13% Unsecured revolving credit facility | Commercial Banks [Member]

Notes payable, effective interest rate

6.13%

Floating rate notes payable [Member]

Notes Payable

^[4]

$ 541,100

$ 848,500

Weighted Average Interest Rate

6.70%

6.50%

6.21% Term Loan, due 2024 | Commercial Banks [Member]

Repayment of notes payable

$ 300,000

Debt Instrument, Maturity Date

Aug. 30, 2024

Notes payable, effective interest rate

6.21%

6.21%

6.21% Term Loan, due 2024 | Secured Debt

Gain (Loss) on Extinguishment of Debt

$ 900

Four Point Nine Percentage Notes Due 2034 | Senior Unsecured Notes [Member]

Proceeds from Issuance of Debt

$ 394,800

Debt Instrument, Interest Rate During Period

4.946%

Notes payable, effective interest rate

4.90%

Debt Instrument, Face Amount

$ 400,000

Discounted notes payable face amount

99.638%

4.36% Notes Due 2024 | Commercial Banks [Member]

Repayment of notes payable

$ 250,000

4.36% Notes Due 2024 | Senior Unsecured Notes [Member]

Debt Instrument, Maturity Date

Jan. 15, 2024

Notes payable, effective interest rate

4.36%

4.36%

[1]	Unamortized debt discounts, debt issuance costs, and fair market value adjustments of $17.5 million and $5.5 million are included in notes payable as of March 31, 2024 and December 31, 2023, respectively.
[2]	Includes all available extension options.
[3]	Includes the effects of the applicable settled derivatives.
[4]	Includes the senior unsecured notes payable due in 2026 at March 31, 2024 and December 31, 2023

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- Definition

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Advances under the line of credit may be priced at the scheduled rates, or we may enter into bid rate loans with participating banks at rates below the scheduled rates. These bid rate loans have terms of 180 days or less and may not exceed the lesser of $250 million or the remaining amount available under the line of credit.

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