Lessee, Operating Lease, Adjusted Revenue to Rent Ratio

No definition available.

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee, Operating Lease, Maximum Annual Escalation Percent

+ References

No definition available.

+ Details

Name:	penn_LesseeOperatingLeaseMaximumAnnualEscalationPercent
Namespace Prefix:	penn_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee, Operating Lease, Number Of Options To Extend

+ References

No definition available.

+ Details

Name:	penn_LesseeOperatingLeaseNumberOfOptionsToExtend
Namespace Prefix:	penn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the adjustment to variable lease component expressed as a percentage of the average change to net revenues from all facilities under lease during the preceding two years.

+ References

No definition available.

+ Details

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

- Definition

Represents the percentage of annual escalation to fixed components of lease if certain rent coverage ratio thresholds are met.

+ References

No definition available.

+ Details

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

- Definition

Lessee, Operating Lease, Percentage Rent Fixed Period

+ References

No definition available.

+ Details

Name:	penn_LesseeOperatingLeasePercentageRentFixedPeriod
Namespace Prefix:	penn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee, Operating Lease, Remaining Term of Contract

+ References

No definition available.

+ Details

Name:	penn_LesseeOperatingLeaseRemainingTermofContract
Namespace Prefix:	penn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee, Operating Lease, Sum of Base Rent and Percentage Rent Threshold

+ References

No definition available.

+ Details

Name:	penn_LesseeOperatingLeaseSumofBaseRentandPercentageRentThreshold
Namespace Prefix:	penn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- 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

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

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

+ Details

Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cash payments to lessor's for use of assets under operating leases.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585

+ Details

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

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=penn_MeadowsLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	penn_LeaseRenewalOptionAxis=penn_LeaseRenewalOptionOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	penn_LeaseRenewalOptionAxis=penn_LeaseRenewalOptionTwoMember
Namespace Prefix:
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Period Type:

Master Lease Financing Obligations and Lease Obligations - Operating Lease Commitments - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) extension_period	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Operating Leased Assets [Line Items]
Rent expense	$ 58.1	$ 45.4	$ 40.3
Meadows Lease
Operating Leased Assets [Line Items]
Rent expense	$ 3.8
Remaining lease term	8 years
Lease term	10 years
Percent escalation during initial term	0.05
Sum of base rent and percentage rent threshold	$ 31.0
Annual escalator if certain rent coverage ratio thresholds are met	2.00%
Adjusted revenue to rent ratio	2.0
Fixed period of percentage rent component	2 years
Percentage of average net revenues during preceding two years	4.00%
Lease payments	$ 5.6
Meadows Lease \| Lease renewal option one
Operating Leased Assets [Line Items]
Number of lease renewal options \| extension_period	3
Lease renewal term	5 years
Meadows Lease \| Lease renewal option two
Operating Leased Assets [Line Items]
Number of lease renewal options \| extension_period	1
Lease renewal term	4 years