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Summary of Significant Accounting Policies - Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Segment Information |  |  |  |
Impact to income from operations | $ 134,989 | $ 149,337 | $ 275,276 | $ 289,868
Kansas Entertainment |  |  |  |
Segment Information |  |  |  |
Ownership interest in joint venture (as a percent) | 50.00% |  | 50.00% |
Penn Interactive Ventures |  |  |  |
Segment Information |  |  |  |
Percent of net revenue |  |  | 1.40% |
Impact to income from operations |  |  | $ (2,300) |
Percent of total assets | 2.20% |  | 2.20% |

X
- Definition Percent of total assets at close of period. + References No definition available. + Details
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Period Type: | instant

X
- Definition Represents the entity's ownership interest in a joint venture. + References No definition available. + Details
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- Definition The percent of total net revenues of the entity represented by the segment or subsegment. + References No definition available. + Details
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Namespace Prefix: | penn_
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Period Type: | duration

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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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X
- Details
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