CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Real estate revenue:
Base rent	$ 230,898	$ 252,115	$ 271,957
Expense reimbursements	109,454	118,880	125,505
Percentage rent	4,366	5,245	5,724
Lease termination revenue	2,760	4,460	2,014
Other real estate revenue	14,046	13,897	14,997
Total real estate revenue	361,524	394,597	420,197
Other income	5,966	5,349	5,214
Total revenue	367,490	399,946	425,411
Property operating expenses:
CAM and real estate taxes	(111,275)	(124,690)	(133,912)
Utilities	(16,151)	(17,053)	(19,674)
Other	(12,879)	(14,475)	(16,461)
Cost of Real Estate Revenue	140,305	156,218	170,047
Depreciation and amortization	(128,822)	(126,669)	(142,647)
Other expenses:
Impairment of assets	55,793	62,603	140,318
General and administrative expenses	(36,736)	(35,269)	(34,836)
Provision for employee separation expense	(1,299)	(1,355)	(2,087)
Project costs and other expenses	(768)	(1,700)	(6,108)
Interest expense, net	(58,430)	(70,724)	(81,096)
Project costs and other expenses	(422,153)	(454,538)	(577,139)
Total operating expenses	307,930	321,211	355,725
Loss before equity in income of partnerships and gains on sales of real estate and non operating real estate	(54,663)	(54,592)	(151,728)
Equity in income of partnerships	14,367	18,477	9,540
Equity Method Investment, Realized Gain (Loss) on Disposal	6,539
Gain on sale of real estate by equity method investee	(361)	23,022	12,362
Net loss attributable to PREIT	(29,344)	(11,348)	(116,683)
Less: preferred share dividends	(27,845)	(15,848)	(15,848)
Preferred Stock Redemption Premium	(4,103)
Net loss attributable to PREIT common shareholders	(61,292)	(27,196)	(132,531)
Net loss	(32,848)	(12,713)	(129,567)
Net Income (Loss) Attributable to Noncontrolling Interest	(3,504)	(1,365)	(12,884)
Preferred dividends	(27,845)	(15,848)	(15,848)
Noncontrolling interest	3,504	1,365	12,884
Dividends on restricted shares	(372)	(322)	(315)
Net loss used to calculate earnings per share – basic and diluted	$ (61,664)	$ (27,518)	$ (132,846)
Basic and diluted loss per share
Loss from continuing operations (in dollars per share)	$ (0.89)	$ (0.40)	$ (1.93)
Basic and diluted earnings (loss) per share (in dollars per share)	$ (0.89)	$ (0.40)
Weighted average shares outstanding – basic	69,364	69,086	68,740
Weighted average shares outstanding – diluted	69,364	69,086	68,740
Gain Loss On Sale Of Real Estate	$ 1,270	$ 380	$ 259