Name:	penn_CertainRisksAndUncertaintiesAbstract
Namespace Prefix:	penn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of income from operations derived from the division.

No definition available.

Name:	penn_IncomeFromOperationsPercentage
Namespace Prefix:	penn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the entity's ownership interest in a joint venture.

No definition available.

Name:	penn_JointVentureOwnershipInterestPercentage
Namespace Prefix:	penn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The total number of additional Category 4 gaming licenses authorized by Pennsylvania.

No definition available.

Name:	penn_NumberOfAdditionalCategoryFourGamingLicensesAuthorizedByPennsylvania
Namespace Prefix:	penn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The number of additional Category 4 gaming licenses authorized by Pennsylvania secured by the entity.

No definition available.

Name:	penn_NumberOfAdditionalCategoryFourPennsylvaniaGamingLicensesSecured
Namespace Prefix:	penn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of slot machines in the casino.

No definition available.

Name:	penn_NumberOfSlotMachines
Namespace Prefix:	penn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of table games in the casino.

No definition available.

Name:	penn_NumberOfTableGames
Namespace Prefix:	penn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The percent of total net revenues of the entity represented by the segment or subsegment.

No definition available.

Name:	penn_PercentOfNetRevenue
Namespace Prefix:	penn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The net result for the period of deducting operating expenses from operating revenues.

No definition available.

Name:	us-gaap_OperatingIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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.

No definition available.

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_SubsegmentsAxis=penn_HollywoodCasinoCharlesTownRacesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis=penn_KansasEntertainmentLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: