CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
INVESTMENTS IN REAL ESTATE, at cost:
Operating properties	$ 3,113,736	$ 3,156,194
Construction in progress	45,146	45,828
Land held for development	4,339	4,339
Total investments in real estate	3,163,221	3,206,361
Accumulated depreciation	(1,417,522)	(1,405,260)
Net investments in real estate	1,745,699	1,801,101
INVESTMENTS IN PARTNERSHIPS, at equity:	12,749	16,525
OTHER ASSETS:
Cash and cash equivalents	45,554	43,852
Tenant and other receivables	36,036	42,501
Intangible assets (net of accumulated amortization of $21,900 and $21,598 at March 31, 2022 and December 31, 2021, respectively)	9,752	10,054
Deferred costs and other assets, net	123,957	128,923
Assets held for sale	42,416	8,780
Total assets	2,016,163	2,051,736
LIABILITIES:
Mortgage loans payable, net	844,987	851,283
Term Loans, net	971,761	959,137
Revolving Facilities	53,818	54,549
Tenants’ deposits and deferred rent	11,177	10,180
Distributions in excess of partnership investments	69,344	71,570
Fair value of derivative instruments	2,613	8,427
Accrued expenses and other liabilities	77,319	89,543
Total liabilities	2,031,019	2,044,689
COMMITMENTS AND CONTINGENCIES (Note 8)
EQUITY:
Shares of beneficial interest, $1.00 par value per share; 200,000 shares authorized; 80,617 and 80,200 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively	80,617	80,200
Capital contributed in excess of par	1,781,859	1,777,013
Accumulated other comprehensive loss	(3,096)	(8,830)
Distributions in excess of net income	(1,864,844)	(1,832,375)
Total equity (deficit) - Pennsylvania Real Estate Investment Trust	(5,310)	16,162
Noncontrolling interest	(9,546)	(9,115)
Total equity (deficit)	(14,856)	7,047
Total liabilities and equity	2,016,163	2,051,736
Series B Preferred Stock
EQUITY:
Preferred Shares	35	35
Series C Preferred Stock
EQUITY:
Preferred Shares	69	69
Series D Preferred Stock
EQUITY:
Preferred Shares	$ 50	$ 50