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Nature of Business and Basis of Presentation (Details Textual) | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2019 USD ($) Property shares | Jun. 30, 2019 USD ($) Segment Property shares | Apr. 25, 2019 USD ($) | Apr. 15, 2019 USD ($) | Mar. 12, 2019 USD ($) | Jan. 01, 2019 USD ($)
Nature Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |
Number of reportable operating segments | Segment |  | 2 |  |  |  |
Operating lease ROU assets | $ 158,085,000 | $ 158,085,000 |  |  |  |
Operating lease liability | $ 172,777,000 | $ 172,777,000 |  |  |  |
Anti-dilutive potential common share equivalents | shares | 739,934 | 892,282 |  |  |  |
ASU 842 [Member] |  |  |  |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |
Operating lease ROU assets | $ 0 | $ 0 |  |  |  | $ 140,715,000
Operating lease liability | $ 0 | $ 0 |  |  |  | $ 155,878,000
Senior Unsecured Notes Due 2026 [Member] |  |  |  |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | $ 375,000,000 | $ 375,000,000 |  |
Debt instrument interest stated percentage |  |  | 7.625% | 7.625% |  |
Maximum [Member] |  |  |  |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |
Common stock repurchase, authorized |  |  |  |  | $ 25,000,000 |
Non-cancelable operating leases term | 10 years | 10 years |  |  |  |
Maximum [Member] | ASU 842 [Member] |  |  |  |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |
Operating leases term | 1 year | 1 year |  |  |  |
Minimum [Member] |  |  |  |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |
Non-cancelable operating leases term | 5 years | 5 years |  |  |  |
Nevada and Maryland [Member] |  |  |  |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |  |  |  |
Number of resort casino properties | Property | 10 | 10 |  |  |  |

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