Represents the aggregate amount spent, as of the balance sheet date, on development and construction of the facility.

No definition available.

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Balance Type:	debit
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- Definition

Represents the square footage of the foot grandstand.

+ References

No definition available.

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- Details

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- Definition

Represents the penalty interest of gross gaming renvenue.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Represents the area of casino available with the joint venture.

+ References

No definition available.

+ Details

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- Definition

The acreage of a racetrack which is a joint venture of the entity.

+ References

No definition available.

+ Details

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- Definition

Represents the number of poker tables available with the joint venture.

+ References

No definition available.

+ Details

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- Definition

Represents the number of slot machines available with the joint venture.

+ References

No definition available.

+ Details

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- Definition

Represents the number of space parking available with the joint venture.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

Represents the number of table games available with the joint venture.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

The acreage of a planned development of a racetrack in which the entity has an option to purchase related to a joint venture.

+ References

No definition available.

+ Details

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Data Type:	num:areaItemType
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- Definition

Represents the location of the entity in number of miles from a specified location.

+ References

No definition available.

+ Details

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Data Type:	num:lengthItemType
Balance Type:	na
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- Definition

Represents the period following notification subject to penalty.

+ References

No definition available.

+ Details

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

- Definition

Represents the size of the dog racing and simulcasting facility of a joint venture, in terms of square feet.

+ References

No definition available.

+ Details

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Namespace Prefix:	penn_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the entity's ownership interest in a joint venture that is under an agreement of sale.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The payment to the joint venture towards capital expenditure and other operating expenses.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The amount of estimated penalties recognized in the period.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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- Definition

This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Article 5

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- Definition

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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

-Paragraph 1

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.9)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 9

-Article 9

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- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Investment In and Advances to Unconsolidated Affiliates (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 08, 2011
Business ventures
Investment in and advances to unconsolidated affiliates	$ 179,551,000	$ 193,331,000
Distributions of earnings from unconsolidated affiliates	23,000,000	21,500,000	9,400,000
Interest Expense	45,982,000us-gaap_InterestExpense	97,092,000us-gaap_InterestExpense	81,440,000us-gaap_InterestExpense
Kansas
Business ventures
Ownership interest in joint venture under agreement of sale (as a percent)	50.00%
Area of Casino (in square foot)	244,791
Number of slot machines	2,000
Number of table games	40
Number of poker tables	12
Number of space parking	1,253
Cost of developing and constructing the facility, inclusive of licensing fees	140,100,000
Investment in and advances to unconsolidated affiliates	115,500,000	127,800,000
Funding for capital expenditure and other operating expenses			39,100,000
Distributions of earnings from unconsolidated affiliates	23,000,000	21,500,000	13,000,000
Gross gaming revenue penalty (as a percent)	1.00%
Period following notification	100 days
Expense related to penalties	600,000
Freehold Raceway
Business ventures
Ownership interest in joint venture under agreement of sale (as a percent)	50.00%
Size of foot grandstand (in square feet)	117,715
MAXXAM
Business ventures
Ownership interest in joint venture under agreement of sale (as a percent)	50.00%			50.00%
Loan provided to joint venture to cover development costs	$ 375,000,000
MAXXAM \| Senior financing
Business ventures
Variable rate basis	LIBOR
MAXXAM \| Senior financing \| Minimum
Business ventures
Basis points added to reference rate (as a percent)	8.00%
MAXXAM \| Senior financing \| Maximum
Business ventures
Basis points added to reference rate (as a percent)	9.00%
MAXXAM \| Subordinated financing
Business ventures
Variable rate basis	LIBOR
MAXXAM \| Subordinated financing \| Minimum
Business ventures
Basis points added to reference rate (as a percent)	5.00%
MAXXAM \| Subordinated financing \| Maximum
Business ventures
Basis points added to reference rate (as a percent)	6.00%
Sam Houston Race Park in Houston
Business ventures
Size of race park (in acres)				168
Location of facility in distance from major metropolitan area (in miles)				15
Valley Race Park in Harlingen
Business ventures
Size of race park (in acres)				71
Size of dog racing and simulcasting facility (in square feet)				118,216
Planned Racetrack in Laredo
Business ventures
Size of property for a planned development of racetrack (in acres)				135