Debt Instrument, Amount Payable Upon Opening Of Facility

No definition available.

Name:	penn_DebtInstrumentAmountPayableUponOpeningOfFacility
Namespace Prefix:	penn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the number of semi annual payments.

+ References

No definition available.

+ Details

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

- Definition

Debt Instrument, Semiannual Payment Amount Beginning One Year From Commencement Of Operations

+ References

No definition available.

+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

+ Details

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

- Definition

Amount of long-term debt and lease obligation, including portion classified as current.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableOtherPayablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=penn_RelocationForHollywoodGamingAtDaytonRacewayAndHollywoodGamingAtMahoningMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-term Debt - Other Long-term Obligations (Details) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2014 USD ($) payment	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Principal	$ 2,566.1			$ 2,566.1		$ 2,419.0
Interest expense, debt	5.4			8.1
Other Long-Term Obligations
Debt Instrument [Line Items]
Principal	80.8			80.8		89.2
Other Long-Term Obligations \| Ohio Relocation Fees Debt
Debt Instrument [Line Items]
Principal	68.8			68.8		$ 76.4
Amount payable upon opening of the facility			$ 7.5
Number of semi-annual payments \| payment			18
Amount of semi-annual payments due beginning one year from commencement of operations			$ 4.8
Effective yield			5.00%
Interest expense, debt	$ 0.8	$ 1.0		$ 2.6	$ 3.2