CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
INVESTMENTS IN REAL ESTATE, at cost:
Operating properties	$ 3,175,442	$ 3,168,536
Construction in progress	44,671	46,285
Land held for development	4,339	5,516
Total investments in real estate	3,224,452	3,220,337
Accumulated depreciation	(1,388,330)	(1,308,427)
Net investments in real estate	1,836,122	1,911,910
INVESTMENTS IN PARTNERSHIPS, at equity:	19,947	27,066
OTHER ASSETS:
Cash and cash equivalents	28,975	43,309
Tenant and other receivables	36,102	54,532
Intangible assets (net of accumulated amortization of $20,220 and $19,187 at September 30, 2021 and December 31, 2020, respectively)	10,359	11,392
Deferred costs and other assets, net	134,967	127,593
Assets held for sale	3,626	1,384
Total assets	2,070,098	2,177,186
LIABILITIES:
Mortgage loans payable, net	856,986	884,503
Term Loans, net	945,456	908,473
Revolving Facilities	54,830	54,830
Tenants’ deposits and deferred rent	9,075	8,899
Distributions in excess of partnership investments	69,627	76,586
Fair value of derivative instruments	13,060	23,292
Accrued expenses and other liabilities	91,062	93,663
Total liabilities	2,040,096	2,050,246
COMMITMENTS AND CONTINGENCIES (Note 8)
EQUITY:
Shares of beneficial interest, $1.00 par value per share; 200,000 shares authorized; 80,200 and 79,537 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively	80,200	79,537
Capital contributed in excess of par	1,775,959	1,771,777
Accumulated other comprehensive loss	(12,876)	(20,620)
Distributions in excess of net income	(1,804,710)	(1,699,638)
Total equity – Pennsylvania Real Estate Investment Trust	38,727	131,210
Noncontrolling interest	(8,725)	(4,270)
Total equity	30,002	126,940
Total liabilities and equity	2,070,098	2,177,186
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