Floor rate on a debt instrument such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract.

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Period Type:	instant

- Definition

Represents the redemption price for each $1000 of the debt instrument's principal amount.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the principal amount (as the denominator) used to state the redemption price of the debt instrument.

+ Details

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Namespace Prefix:	penn
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the number of term loans of the entity.

+ Details

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Namespace Prefix:	penn
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of tax surcharge to subsidize local horse racing interests.

+ Details

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Namespace Prefix:	penn
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the maximum operating fees per year.

+ Details

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Namespace Prefix:	penn
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the number of properties, who paid the surcharge tax.

+ Details

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Namespace Prefix:	penn
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period of operating contract.

+ Details

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

- Definition

Represents the tax on surcharge paid by the entity.

+ Details

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Namespace Prefix:	penn
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ Details

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Namespace Prefix:	us-gaap
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Decrease for amounts repaid on the debt instrument for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph f

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 21
-Paragraph 16, 20
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This item represents the amount of gain (loss) arising from the disposal of an equity method investment.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount represents the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 26
-Paragraph 20, 21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	credit
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.

+ Details

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Subsequent Events (Details) (USD $)	1 Months Ended	3 Months Ended	6 Months Ended	1 Months Ended		1 Months Ended		1 Months Ended		1 Months Ended			1 Months Ended	3 Months Ended			1 Months Ended	3 Months Ended	6 Months Ended			3 Months Ended
Subsequent Events (Details) (USD $)	Jul. 31, 2011	Jun. 30, 2010	Jun. 30, 2010	Jul. 31, 2011 Revolving credit facility Issuance of debt	Jul. 14, 2011 Revolving credit facility Issuance of debt	Jul. 31, 2011 Variable rate Term Loan A Issuance of debt	Jul. 14, 2011 Variable rate Term Loan A Issuance of debt	Jul. 31, 2011 Variable rate Term Loan B Issuance of debt	Jul. 14, 2011 Variable rate Term Loan B Issuance of debt	Jul. 31, 2011 Issuance of debt	Jul. 14, 2011 Issuance of debt	Jul. 14, 2011 Issuance of debt New revolving credit facility	Jul. 31, 2011 $250 million 6 3/4% senior subordinated notes due March 2015 Redemption of debt	Sep. 30, 2011 $250 million 6 3/4% senior subordinated notes due March 2015 Redemption of debt	Jul. 18, 2011 Hollywood Casino Joliet Anticipated competition	Jul. 18, 2011 Hollywood Casino Aurora Anticipated competition	Jul. 31, 2011 Anticipated competition	Jun. 30, 2011 Anticipated competition	Jun. 30, 2011 Anticipated competition	Jun. 30, 2011 $250 million 6 3/4% senior subordinated notes due March 2015	Dec. 31, 2010 $250 million 6 3/4% senior subordinated notes due March 2015	Sep. 30, 2011 Maryland RE & R LLC
New revolving credit facility
Variable rate term loan							$ 700,000,000		$ 750,000,000			$ 700,000,000								$ 250,000,000	$ 250,000,000
Maximum borrowing capacity					700,000,000		700,000,000				2,150,000,000	700,000,000
Variable rate basis				LIBOR		LIBOR		LIBOR
Basis points added to reference rate (as a percent)					1.75%		1.75%		2.75%
Number of term loans										2
Floor interest rate (as a percent)									1.00%
Number of properties				2													2
Redemption of debt													250,000,000
Redemption price of debt instrument for each $1000 principal amount													1,022,500,000
Principal amount used for ratio of debt instrument redemption price													1,000
Percentage of tax surcharge (as a percent)															3.00%	3.00%
Surcharge tax paid																		2,600,000	5,100,000
Debt extinguishment loss		519,000	519,000											18,000,000
Gain on sale of joint venture interest																						20,000,000
Period of operating contract for the Casino Rama facility (in years)	5
Maximum operating fees per year of the Casino Rama facility	$ 5,000,000