Investments in Partnerships - Summary of Equity Method Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Investments in real estate, at cost:
Operating properties	$ 741,998	$ 741,007
Construction in progress	5,378	5,346
Total investments in real estate	747,376	746,353
Accumulated depreciation	(242,380)	(237,791)
Net investments in real estate	504,996	508,562
Cash and cash equivalents	39,603	28,186
Deferred costs and other assets, net	142,940	142,929
Total assets	687,539	679,677
LIABILITIES AND PARTNERS’ INVESTMENT:
Mortgage loans payable, net	397,998	400,141
FDP Term Loan, net	78,320	104,427
Partnership Loans	246,905	214,008
Other liabilities	165,562	155,873
Total liabilities	888,785	874,449
Net investment	(201,246)	(194,772)
Partners’ share	(105,788)	(102,495)
PREIT’s share	(95,458)	(92,277)
Excess investment	6,987	6,986
Net investments and advances	(88,471)	(85,291)
Investment in partnerships, at equity	7,621	7,845
Distributions in excess of partnership investments	$ (96,092)	$ (93,136)