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Notes Payable (Narrative) (Details)
$ in Thousands

1 Months Ended

3 Months Ended

Aug. 31, 2022

USD ($)

Mar. 31, 2023

USD ($)

yr

Dec. 31, 2022

USD ($)

Apr. 01, 2022

USD ($)

Mar. 31, 2022

USD ($)

Notes Payable

^[1]

$ 3,747,800

$ 3,680,900

Unamortized debt discounts and debt issuance costs

17,100

18,000

Unsecured Debt

$ 3,232,682

3,165,924

Weighted Average Interest Rate

^[2]

4.10%

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

6.1

Secured notes payable

$ 515,134

514,989

Debt Instrument, Unamortized Discount (Premium), Net

1,800

$ 2,400

Amortization of Debt Discount (Premium)

100

Available amount under unsecured credit facility

1,100,000

Letter Of Credit [Member]

Maximum Ability to Issue Letters of Credit Under Unsecured Credit Facility

50,000

Outstanding balance under credit facility

14,200

Commercial Banks [Member]

Unsecured Debt

447,900

381,800

Senior Unsecured Notes [Member]

Unsecured Debt

$ 2,784,800

2,784,100

5.63% Unsecured revolving credit facility

Maximum term of bid rate loans (days)

180 days

Lesser of amount stated or the amount available under the unsecured credit facility

$ 600,000

Line of Credit Facility, Increase (Decrease), Net

$ 300,000

5.63% Unsecured revolving credit facility | September 2022 Credit Agreement

Maximum borrowing capacity under unsecured credit facility

1,200,000

5.63% Unsecured revolving credit facility | Commercial Banks [Member]

Unsecured Debt

$ 108,000

42,000

Notes payable, effective interest rate

5.63%

Floating rate notes payable [Member]

Notes Payable

$ 633,100

^[3]

566,900

^[3]

$ 539,900

Weighted Average Interest Rate

6.00%

1.30%

5.84% Term Loan, due 2024 | Commercial Banks [Member]

Unsecured Debt

$ 39,900

$ 39,800

Debt Instrument, Maturity Date

Sep. 30, 2024

Notes payable, effective interest rate

5.84%

[1]	Unamortized debt discounts, debt issuance costs, and fair market value adjustments of $17.1 million and $18.0 million are included in notes payable as of March 31, 2023 and December 31, 2022, respectively.
[2]	Includes the effects of the applicable settled forward interest rate swaps.
[3]	Includes balances outstanding under our unsecured revolving credit facility at March 31, 2023 and December 31, 2022

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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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