Investments in Partnerships - Summary of Equity Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Investments in real estate, at cost:
Operating properties	$ 741,007	$ 847,560
Construction in progress	5,346	6,456
Total investments in real estate	746,353	854,016
Accumulated depreciation	(237,791)	(247,133)
Net investments in real estate	508,562	606,883
Cash and cash equivalents	28,186	59,004
Deferred costs and other assets, net	142,929	155,247
Total assets	679,677	821,134
LIABILITIES AND PARTNERS’ INVESTMENT:
Mortgage loans payable, net	400,141	493,904
FDP Term Loan, net	104,427	194,602
Partnership Loans	214,008	115,543
Other liabilities	155,873	141,619
Total liabilities	874,449	945,668
Net investment	(194,772)	(124,534)
Partners’ share	(102,495)	(62,771)
PREIT’s share	(92,277)	(61,763)
Excess investment	6,986	6,718
Net investments and advances	(85,291)	(55,045)
Investment in partnerships, at equity	7,845	16,525
Distributions in excess of partnership investments	$ (93,136)	$ (71,570)