CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	432	403
Real estate revenue:
Base rent	$ 64,273	$ 71,342
Expense reimbursements	31,510	34,351
Percentage rent	524	590
Lease termination revenue	441	100
Other real estate revenue	2,035	2,226
Total real estate revenue	98,783	108,609
Other Nonoperating Income	1,274	779
Total revenue	100,057	109,388
Property operating expenses:
CAM and real estate taxes	(33,807)	(39,403)
Utilities	(5,149)	(8,210)
Other property operating expenses	(4,196)	(4,104)
Cost of Real Estate Revenue	43,152	51,717
General and administrative expenses	(8,943)	(9,077)
Depreciation and amortization	(33,189)	(36,235)
Acquisition costs and other expenses	(4,451)	(1,646)
Operating Expenses	89,735	98,675
Interest expense, net	(20,145)	(20,170)
Asset Impairment Charges	6,240	1,300
Costs and Expenses	116,120	120,145
Loss before equity in income of partnerships and gain on sale of interest in non operating real estate	(16,063)	(10,757)
Equity in income of partnerships	2,083	2,402
Gain Loss On Sale Of Real Estate	43	0
Net loss	(13,937)	(8,355)
Less: net loss attributable to noncontrolling interest	429	252
Net loss attributable to PREIT	(13,508)	(8,103)
Less: preferred share dividends	(3,962)	(3,962)
Net loss attributable to PREIT common shareholders	(17,470)	(12,065)
Net loss	(13,937)	(8,355)
Noncontrolling interest	429	252
Dividends on unvested restricted shares	(86)	(113)
Income (Loss) from Continuing Operations Attributable to Parent	$ (17,556)	$ (12,178)
Basic and diluted loss per share:	$ (0.26)	$ (0.18)
Weighted average shares outstanding—basic	68,566	67,944
Weighted average shares outstanding—diluted	68,566	67,944