Mortgages Payable Mortgages Payable - Summary of Mortgages Payable (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) property	Dec. 31, 2017 USD ($) property
Debt
Mortgage Payable Balance	$ 302,569	$ 325,941
Mortgages Payable
Debt
Number of properties \| property	60	62
Weighted Average Stated Interest Rate (as a percent)	5.10%	5.00%
Weighted Average Effective Interest Rate (as a percent)	4.60%	4.40%
Weighted Average Remaining Years Until Maturity	3 years 2 months 24 days	4 years
Remaining Principal Balance	$ 298,377	$ 320,283
Unamortized Premium and Deferred Finance Costs Balance, net	$ 4,192	$ 5,658

Number of properties occupied by the applicable tenant associated with mortgages.

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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

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References

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- Definition

Weighted average interest rate of debt outstanding.

+ References

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- Definition

Amount of long-term notes payable classified as other.

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