Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Amortization Period In Years

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- Definition

Carrying Value Of Net Losses Associated With Interest Rate Swaps

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- Definition

Derivative Liability, Notional Amount, Ineffective

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No definition available.

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- Definition

Interest expense, mark to market

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- Definition

Number of additional Interest Rate Derivatives Held

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- Definition

The aggregate fair value of assets needed to immediately settle the derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4H

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624258-113959

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- Definition

Average fixed interest rate related to the group of interest rate derivatives.

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- Definition

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 25

-Section 50

-Paragraph 1

-Subparagraph (a)(1),(2)

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- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

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- Definition

The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4H

-Subparagraph (c)

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- Definition

The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

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-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

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- Definition

The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

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-Glossary Financing Activities

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Derivatives - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	1 Months Ended
	Mar. 31, 2015	Jul. 31, 2014	Apr. 30, 2015 Agreement
Derivative Instruments [Line Items]
Loss recognized in income on derivatives (ineffective portion and amount excluded from effectiveness testing)	$ 0.5
Estimate increase to interest expense	3.4
Fair value of derivatives in a net liability position	(4.4)
Termination value	(4.8)
Interest expense, mark to market	0.5pei_Interestexpensemarktomarket
Interest rate swaps [Member]
Derivative Instruments [Line Items]
Number of derivative, interest rate swap agreement	12
Derivative, Weighted average interest rate	1.67%
Derivative, notional amount	327.4
Interest Rate Swap Eleven [Member]
Derivative Instruments [Line Items]
Derivative Liability, Notional Amount, Ineffective	40.0
Interest Rate Swap Twelve [Member]
Derivative Instruments [Line Items]
Maturity Date	Jan. 02, 2019
Net loss	2.4
Settled Interest Rate Swaps [Member]
Derivative Instruments [Line Items]
Amortized period	10 years
The Gallery at Market East [Member]
Derivative Instruments [Line Items]
Repayments of Secured Debt		25.8
Subsequent Event [Member] \| Interest rate swaps [Member]
Derivative Instruments [Line Items]
Derivative, Weighted average interest rate			1.16%
Derivative, notional amount			$ 95.0
Number of additional Interest Rate Derivatives Held			4