Investments in Partnerships - Summary of Share of Equity in Income of Partnerships (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]
Real estate revenue	$ 21,175	$ 20,194
Expenses:
Operating expenses	(7,100)	(5,969)
Interest expense	(5,475)	(5,549)
Depreciation and amortization	(3,649)	(3,567)
Total expenses	(16,224)	(15,085)
Net income	4,951	5,109
Less: Partners’ share	(2,473)	(2,549)
PREIT’s share	2,478	2,560
Amortization of excess investment	(76)	(108)
Equity in income of partnerships	$ 2,402	$ 2,452