Share Based Compensation (Assumptions Used in Monte Carlo Simulations Used to Determine Aggregate Fair Values) (Detail) (Restricted Share Unit [Member])	10 Months Ended	12 Months Ended
Feb. 27, 2013	Dec. 31, 2014	Feb. 26, 2014	Apr. 23, 2012	Apr. 09, 2012
Restricted Share Unit [Member]
Share Based Compensation Arrangements By Share Based Payment Award Options [Line Items]
RSUs granted	112,898	127,353		80,744	134,761
Volatility	44.70%		37.70%	57.20%	61.50%
Risk free interest rate	0.36%		0.68%	0.39%	0.46%
PREIT Stock Beta compared to Dow Jones US Real Estate Index	1.472		1.492	1.457	1.495

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Stock Beta Of Restricted Stock Unit Awards

+ References

No definition available.

+ Details

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(iv)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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