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Organization and Basis of Presentation (Details) | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Sep. 30, 2016 property | Sep. 27, 2016 USD ($) | Apr. 25, 2016 USD ($) | Jan. 31, 2010
Consolidated Entities [Line Items] |  |  |  |
Number of gaming entertainment properties | property | 22 |  |  |
Business Combination, Assets and Liabilities Arising from Contingencies, Amount Recognized, Net |  |  | $ 20,000,000 |
Subsidiary, Borgata |  |  |  |
Consolidated Entities [Line Items] |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  | 50.00%
Aliante Gaming, LLC [Member] |  |  |  |
Consolidated Entities [Line Items] |  |  |  |
Business Combination, Assets and Liabilities Arising from Contingencies, Amount Recognized, Net |  | $ 372,300,000 |  |

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