Debt and Derivative Instruments (Schedule of Mortgages and Credit Facility Payable) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Mortgage Loans On Real Estate [Line Items]
Mortgages payable	$ 137,851	$ 138,019
Credit facility payable	705,000	709,000
Total debt before unamortized debt issuance costs including impact of interest rate swaps	842,851	847,019
Less: Unamortized debt issuance costs	(2,531)	(3,129)
Total debt	$ 840,320	$ 843,890
Mortgages Payable, Weighted Average Interest Rate	3.97%	3.97%
Credit Facilities Payable, Weighted Average Interest Rate	4.94%	4.95%
Total debt before unamortized debt issuance costs including impact of interest rate swaps, Weighted Average Interest Rate	4.78%	4.79%
Fixed rate mortgages payable [Member]
Mortgage Loans On Real Estate [Line Items]
Mortgages payable	$ 111,851	$ 112,019
Mortgages Payable, Weighted Average Interest Rate	3.84%	3.84%
Variable rate mortgages payable with swap agreements [Member]
Mortgage Loans On Real Estate [Line Items]
Mortgages payable	$ 26,000	$ 26,000
Mortgages Payable, Weighted Average Interest Rate	4.55%	4.55%

Line of credit facility weighted average interest rate.

No definition available.

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- References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

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- Definition

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.

+ References

+ Details

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Balance Type:	credit
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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

+ Details

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-Subparagraph (SX 210.5-02(22))
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

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- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

+ Details

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Balance Type:	credit
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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

No definition available.

+ Details

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