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Segment Information (Reconciliation of Assets) (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Assets | $ 5,275,153 | $ 4,685,930
Las Vegas Locals |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Assets | 1,739,356 | 1,792,119
Downtown Las Vegas |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Assets | 173,694 | 170,574
Midwest & South |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Assets | 2,838,920 | 2,496,957
Total Reportable Segment Adjusted EBITDA |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Assets | 4,751,970 | 4,459,650
Corporate Segment [Member] |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Assets | $ 523,183 | $ 226,280

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