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Fair Value Measurements - Fair Value of Financial Instruments Presented at Carrying Values (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Carrying Value |  |
Debt Instrument [Line Items] |  |
Mortgages payable | $ 107,580 | $ 176,051
Estimated Fair Value |  |
Debt Instrument [Line Items] |  |
Mortgages payable | 107,194 | 178,937
Unsecured Debt | Unsecured Term Loan | Carrying Value |  |
Debt Instrument [Line Items] |  |
Term loans | 400,000 | 400,000
Unsecured Debt | Unsecured Term Loan | Estimated Fair Value |  |
Debt Instrument [Line Items] |  |
Term loans | 400,014 | 400,020
Revolving Credit Facility | Revolving Credit Facility, Amended and Restated | Carrying Value |  |
Debt Instrument [Line Items] |  |
Term loans | 150,000 | 0
Revolving Credit Facility | Revolving Credit Facility, Amended and Restated | Estimated Fair Value |  |
Debt Instrument [Line Items] |  |
Term loans | $ 150,172 | $ 0

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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. + Details
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- Definition Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time. + References No definition available. + Details
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- Definition Fair value portion of contractual obligation to pay money on demand or on fixed or determinable dates. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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