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Nature of Business and Basis of Presentation (Details Textual) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 USD ($) Segment Property shares | Mar. 12, 2019 USD ($) | Jan. 01, 2019 USD ($)
Nature Of Business And Basis Of Presentation [Line Items] |  |  |
Number of reportable operating segments | Segment | 2 |  |
Operating lease ROU assets | $ 163,044,000 |  |
Operating lease liability | $ 178,494,000 |  |
Anti-dilutive potential common share equivalents | shares | 1,047,804 |  |
ASU 842 [Member] |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |
Operating lease ROU assets | $ 0 |  | $ 140,715,000
Operating lease liability | $ 0 |  | $ 155,878,000
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 |  |
Maximum [Member] | ASU 842 [Member] |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |
Operating leases term | 1 year |  |
Minimum [Member] |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |
Non-cancelable operating leases term | 5 years |  |
Nevada and Maryland [Member] |  |  |
Nature Of Business And Basis Of Presentation [Line Items] |  |  |
Number of resort casino properties | Property | 10 |  |

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