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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Tax Contingency [Line Items] |  |  |
Tax Cuts and Jobs Act of 2017, decrease to deferred income tax provisions | $ 4,200 |  |
Tax Cuts and Jobs Act of 2017, transition tax obligation | 18,200 |  |
Tax Cuts and Jobs Act of 2017, increase in taxable income | 1,500 |  |
Franchise tax expense | 400 | $ 400 | $ 400
Net operating loss carryforwards | 6,200 |  |
Deferred tax assets expected to be recovered against reversing taxable temporary differences | $ 4,200 |  |
Frenchman's Reef & Morning Star Marriott Beach |  |  |
Income Tax Contingency [Line Items] |  |  |
New adjusted tax rate after the reduction (as a percent) | 7.00% |  |
Federal |  |  |
Income Tax Contingency [Line Items] |  |  |
Net operating loss carryforwards | $ 3,099 | 12,629 |
State |  |  |
Income Tax Contingency [Line Items] |  |  |
Net operating loss carryforwards | 3,126 | 3,021 |
Less: Valuation allowance | $ (400) | $ (400) |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96869850&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 + Details
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