Investments in Partnerships - Summary of Share of Equity in Loss of Partnerships (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Equity Method Investments and Joint Ventures [Abstract]
Capitalized interest expense	$ 8	$ 92	$ 8	$ 338

Interest cost capitalized equity method investments.

No definition available.

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