Available Cash From Working Capital Used To Repay Mortgage Debt

No definition available.

Name:	pei_AvailableCashFromWorkingCapitalUsedToRepayMortgageDebt
Namespace Prefix:	pei_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	pei_MortgageLoanActivityLineItems
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Balance Type:	na
Period Type:	duration

- Definition

Mortgage Loans On Real Estate Initial Amount Drawn

+ References

No definition available.

+ Details

Name:	pei_MortgageLoansOnRealEstateInitialAmountDrawn
Namespace Prefix:	pei_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Repayment Of Mortgage Secured Loan

+ References

No definition available.

+ Details

Name:	pei_RepaymentOfMortgageSecuredLoan
Namespace Prefix:	pei_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Revolving Facility Debt Used To Repay Mortgage Debt

+ References

No definition available.

+ Details

Name:	pei_RevolvingFacilityDebtUsedToRepayMortgageDebt
Namespace Prefix:	pei_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: 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

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

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

+ Details

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Balance Type:	na
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- Definition

The total periodic movement (increases and decreases) in the carrying amount of mortgage loans on real estate.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule IV)

-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 29

-Article 12

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule IV

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-29.6)

-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

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Balance Type:	na
Period Type:	duration

Financing Activity - Mortgage Loan Activity (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended		9 Months Ended		9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended		9 Months Ended			1 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 Francis Scott Key Mall [Member]	Feb. 28, 2013 Lycoming Mall [Member]	Sep. 30, 2011 Logan Valley Mall [Member]	Sep. 09, 2008 Logan Valley Mall [Member]	Sep. 30, 2013 Mortgage Loan February [Member] Francis Scott Key Mall [Member]	Sep. 30, 2013 Mortgage Loan February [Member] Francis Scott Key Mall [Member] London Interbank Offered Rate (LIBOR) [Member]	Sep. 30, 2013 Mortgage Loan February [Member] Lycoming Mall [Member]	Sep. 30, 2013 Mortgage Loan February [Member] Lycoming Mall [Member] London Interbank Offered Rate (LIBOR) [Member]	Sep. 30, 2013 Mortgage Loan February [Member] Viewmont Mall [Member]	Sep. 30, 2013 Mortgage Loan February [Member] Viewmont Mall [Member] London Interbank Offered Rate (LIBOR) [Member]	Sep. 30, 2013 Mortgage Loan February [Member] Logan Valley Mall [Member] London Interbank Offered Rate (LIBOR) [Member]	Sep. 30, 2013 Mortgage Loan March [Member] Dartmouth Mall [Member]	Sep. 30, 2013 Mortgage Loan March [Member] Logan Valley Mall [Member]	Oct. 01, 2013 Exton Square Mall [Member]	Oct. 31, 2013 Wyoming Valley Mall [Member]	Sep. 30, 2013 Wyoming Valley Mall [Member]	Oct. 01, 2013 2013 Activity [Member] Exton Square Mall [Member]	Sep. 30, 2013 2013 Activity [Member] Wyoming Valley Mall [Member]
Mortgage Loan Activity [Line Items]
Mortgage amount increased		$ 7.9
Mortgage Loans On Real Estate Initial Amount Drawn			28.0		68.0
Amount Financed or Extended (in millions of dollars)						62.6		35.5		48.0			67.0	51.0
Stated Interest Rate							2.60%		2.75%		2.60%	1.70%
Stated Interest Rate													3.97%
Maturity						March 2018		March 2018		March 2018			April 2018	September 2014
Repayment of mortgage loans	12.0			5.0												66.9	65.0
Revolving Facility Debt Used To Repay Mortgage Debt																		60.0	65.0
Available Cash From Working Capital Used To Repay Mortgage Debt															$ 6.9