Represents the coverage limit provided by the insurance arrangement for claims related to builders' risk for delay in completion of the project.

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

- Definition

Amount of risk retained by the entity before the builders' risk insurance arrangement begins to provide coverage related to a delay in completion.

+ Details

Name:	penn_BuilderRiskInsurancePolicyDeductibleDelayInCompletion
Namespace Prefix:	penn
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of risk retained by the entity before the builders' risk insurance arrangement begins to provide coverage related to property damage.

+ Details

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

- Definition

Represents the coverage limit provided by the insurance arrangement for claims related to builders' risk for property damage.

+ Details

Name:	penn_BuilderRiskInsurancePolicyForPropertyDamages
Namespace Prefix:	penn
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Represents the coverage limit provided by the insurance arrangement for claims related to builders' risk, including delay in completion of the project and property damage.

+ Details

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Namespace Prefix:	penn
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Amount of risk retained by the entity before the operational insurance arrangement begins to provide coverage related to business interruptions.

+ Details

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Namespace Prefix:	penn
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- Definition

Amount of risk retained by the entity before the operational insurance arrangement begins to provide coverage related to property damage.

+ Details

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Period Type:	duration

- Definition

Represents the coverage limit provided by the operational insurance arrangement for claims related to business interruption and property damage.

+ Details

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

- Definition

The life-to-date amount received by the entity from insurance settlements.

+ Details

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Namespace Prefix:	penn
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Represents the coverage limit provided by the insurance arrangement for claims related to flood.

+ Details

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

Represents the number of business interruption periods covered in the insurance arrangement for claims related to flood.

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Namespace Prefix:	penn
Data Type:	xbrli:integerItemType
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- Definition

Represents the coverage limit provided by the insurance arrangement for claims related to flood for property damage.

+ Details

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

- Definition

Represents the cost of a renovation that was in progress to the entity's facility when the unusual or infrequent event occurred.

+ Details

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

- Definition

Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The gross gain (loss) income statement effect of each material event or transaction (that would not reasonably be expected to recur in the foreseeable future) that possesses a high degree of abnormality and are clearly unrelated to, or incidentally related to, the ordinary and typical activities of the entity.

+ References

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 30

-Paragraph 26

-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 225

-SubTopic 20

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6365513&loc=d3e15138-107781

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- 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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Insurance Recoveries and Deductibles (Details) (USD $)	1 Months Ended	9 Months Ended	31 Months Ended
Insurance Recoveries and Deductibles (Details) (USD $)	Mar. 31, 2009	Sep. 30, 2011	Sep. 30, 2011	Mar. 20, 2009 D hour
Extraordinary Items
Insurance receivable		$ 953,000	$ 953,000
Hollywood Casino Joliet \| Fire
Extraordinary Items
Cost of renovation	55,000,000
Insurance policy limit				57,000,000
Delay in completion limit	14,000,000
Property damage limit				43,000,000
Property damage deductible	50,000
Delay in completion deductible (in days)				30
Comprehensive business interruption and property damage overall limit				228,000,000
Property damage deductible	2,500,000
Business interruption deductible (in hours)				48
Insurance proceeds received to date		18,600,000	81,200,000
Pre-tax gain (loss) recorded		(18,500,000)
Flood \| Hollywood Casino Tunica Flood
Extraordinary Items
Pre-tax gain (loss) recorded		5,200,000
Property insurance coverage limit		300,000,000	300,000,000
Property insurance coverage limit related to property damage		5,000,000	5,000,000
Property insurance coverage limit for number of business interruption periods (in days)		2
Hollywood Casino Tunica Flood
Extraordinary Items
Insurance proceeds received to date		6,500,000
Insurance receivable		$ 1,000,000	$ 1,000,000