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Summary of Significant Accounting Policies - Revenue (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Trade receivables | $ 46,455 | $ 32,316
Advance deposits as deferred revenue | 11,838 | 14,307
Due To Hotel Managers |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Advance deposits as deferred revenue | $ 14,104 | $ 14,754

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- Definition The face amount of accounts receivable that will be sold to other entities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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