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Summary of Significant Accounting Policies - Investment in Unconsolidated Real Estate Entities (Details) - Hotel | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
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Accounting Policies [Abstract] |  |  |
Number of hotel properties impaired | 0 | 0 | 0

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- Definition Number of Hotel Properties Impaired + References No definition available. + Details
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