CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	672		825		596	851
Real estate revenue:
Base rent	$ 66,908		$ 69,851		$ 209,896	$ 207,560
Expense reimbursements	31,057		33,275		96,287	95,067
Percentage rent	542		593		1,455	2,159
Lease termination revenue	644		336		898	567
Other real estate revenue	2,638		3,011		8,005	8,438
Total real estate revenue	101,789		107,066		316,541	313,791
Other Nonoperating Income	3,348		3,208		4,807	5,491
Total revenue	105,137		110,274		321,348	319,282
Operating expenses:
CAM and real estate taxes	(33,092)		(36,416)		(107,723)	(105,957)
Utilities	(5,520)		(6,859)		(19,571)	(16,986)
Other operating expenses	(4,315)		(4,609)		(11,713)	(12,255)
Total operating expenses	(42,927)		(47,884)		(139,007)	(135,198)
Depreciation and amortization	(34,240)		(35,770)		(107,610)	(104,474)
Other expenses:
General and administrative expenses	(8,373)		(8,116)		(26,224)	(26,578)
Impairment of assets	(2,297)		(6,304)		(19,695)	(6,304)
Provision for employee separation expense	(85)				(4,961)	(2,314)
Acquisition costs and other expenses	(723)		(462)		(3,329)	(862)
Total other expenses	11,478		14,882		54,209	36,058
Interest expense, net	(20,071)		(23,477)		(61,792)	(78,503)
Total expenses	(108,716)		(122,013)		(362,618)	(354,233)
Loss before equity in income of partnerships, net loss on sales of interests in real estate, discontinued operations and gains on sales of discontinued operations	(3,579)		(11,739)		(41,270)	(34,951)
Equity in income of partnerships	3,206		2,345		8,392	7,081
Discontinued operations:
Operating results from discontinued operations			543		0	2,563
Disposal Group Including Discontinued Operation, Impairment of Assets			23,662			23,662
Gains on sales of discontinued operations			45,097		0	78,351
Income from discontinued operations			21,978		0	57,252
Net (loss) income	(886)		12,584		(33,292)	29,382
Less: net loss (income) attributable to noncontrolling interest	27		(382)		1,004	(1,073)
Net (loss) income attributable to PREIT	(859)		12,202		(32,288)	28,309
Less: preferred share dividends	(3,962)		(3,962)		(11,886)	(11,886)
Net (loss) income attributable to PREIT common shareholders	(4,821)		8,240		(44,174)	16,423
Loss from continuing operations	(886)		(9,394)		(33,292)	(27,870)
Noncontrolling interest	27		277		1,004	954
Dividends on unvested restricted shares	(87)		(108)		(293)	(319)
Loss from continuing operations used to calculate loss per share—basic and diluted	(4,908)		(13,187)		(44,467)	(39,121)
Noncontrolling interest			(659)			(2,027)
Income from discontinued operations used to calculate earnings per share—basic and diluted			21,319			55,225
Basic and diluted (loss) earnings per share:
Loss from continuing operations	$ (0.07)		$ (0.20)		$ (0.65)	$ (0.63)
Income from discontinued operations			$ 0.32			$ 0.89
Total (in dollars per share)	$ (0.07)		$ 0.12		$ (0.65)	$ 0.26
Weighted average shares outstanding—basic	68,331		67,579		68,172	62,330
Effect of common share equivalents (1)		[1]		[1]			[1]
Weighted average shares outstanding—diluted	68,331		67,579		68,172	62,330
Gains (Losses) on Sales of Investment Real Estate	$ (513)		$ 0		$ (414)	$ 0

[1] The Company had net losses from continuing operations used to calculate earnings per share for all periods presented. Therefore, the effects of common share equivalents of 672 and 825 for the three months ended September 30, 2014 and 2013, respectively, and 596 and 851 for the nine months ended September 30, 2014 and 2013, respectively, are excluded from the calculation of diluted loss per share for these periods because they would be antidilutive.