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Summary of Significant Accounting Policies (Organization) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) entity segment | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Organization Attributes [Line Items] |  |  |
Subsidiaries, Ownership Percentage | 80.00% |  |
Interest Costs Capitalized |  | $ 500 | $ 100
Income Tax Expense (Benefit) | $ 3,006 | $ (197,486) | $ (6,634)
Number of Gaming Entertainment Properties | entity | 24 |  |
Number of reportable segments | segment | 3 |  |
Adjustments for Change in Accounting Principle [Domain] |  |  |
Organization Attributes [Line Items] |  |  |
Income Tax Expense (Benefit) | $ 1,500 |  |

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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