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Notes Payable (Narrative) (Details)
$ in Thousands

3 Months Ended

6 Months Ended

Jan. 04, 2024

USD ($)

Jun. 30, 2024

USD ($)

yr

Jun. 30, 2023

USD ($)

Jun. 30, 2024

USD ($)

yr

Jun. 30, 2023

USD ($)

Dec. 31, 2023

USD ($)

Notes Payable

^[1]

$ 3,552,800

$ 3,552,800

$ 3,715,400

Unamortized debt discounts and debt issuance costs

18,100

18,100

5,500

Available amount under unsecured credit facility

1,200,000

1,200,000

Repayment of notes payable

550,000

$ 437,749

Loss on early retirement of debt

$ 0

$ (2,513)

$ (921)

$ (2,513)

Weighted Average Interest Rate

^[2],[3]

4.20%

4.20%

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

6.4

6.4

Secured notes payable

$ 330,241

$ 330,241

330,127

Letter Of Credit [Member]

Maximum Ability to Issue Letters of Credit Under Unsecured Credit Facility

50,000

50,000

Long-term Line of Credit

27,700

27,700

Outstanding balance under credit facility

27,700

27,700

Secured Debt

Secured notes payable

330,200

$ 330,200

330,100

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

$ 1,200,000

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

Notes payable, effective interest rate

6.13%

6.13%

Floating rate notes payable [Member]

Notes Payable

^[4]

$ 539,700

$ 539,700

$ 848,500

Weighted Average Interest Rate

6.70%

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%

6.21% Term Loan, due 2024 | Secured Debt

Loss on early retirement 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 | Senior Unsecured Notes [Member]

Repayment of notes payable

$ 250,000

Debt Instrument, Maturity Date

Jan. 15, 2024

Notes payable, effective interest rate

4.36%

4.36%

4.36%

[1]	Balances are decreased by unamortized debt discounts, debt issuance costs, and fair market value adjustments, net of $18.1 million and $5.5 million as of June 30, 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 June 30, 2024 and December 31, 2023

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