Consolidated Statement Of Equity - USD ($)	Total	Limited Partners' Interest In Operating Partnership [Member]	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock, At Cost [Member]	Additional Paid-In Capital [Member]	Cumulative Distributions In Excess Of Net Income [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Cedar Shopping Centers, Inc. [Member]	Minority Interests In Consolidated Joint Ventures [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2013	$ 535,234,000	$ 3,355,000	$ 190,661,000	$ 4,332,000	$ (20,191,000)	$ 747,997,000	$ (393,819,000)	$ (1,303,000)	$ 527,677,000	$ 4,202,000	$ 7,557,000
Balance, shares at Dec. 31, 2013			7,950,000	72,200,000
Net income (loss)	28,680,000	69,000					28,981,000		28,981,000	(370,000)	(301,000)
Unrealized gain (loss) on change in fair value of cash flow hedges	(1,856,000)	(13,000)						(1,843,000)	(1,843,000)		(13,000)
Share-based compensation, net	3,339,000			$ 4,000	1,388,000	1,947,000			3,339,000
Share-based compensation, net, shares				60,000
Common stock sales, net of issuance expenses	41,163,000			$ 414,000		40,749,000			41,163,000
Common stock sales, net of issuance expenses, shares				6,902,000
Preferred stock dividends	(14,408,000)						(14,408,000)		(14,408,000)
Distributions to common shareholders/noncontrolling interests	(16,875,000)	(74,000)					(15,841,000)		(15,841,000)	(960,000)	(1,034,000)
Conversions of OP Units into common stock	371,000	(371,000)		$ 3,000		368,000			371,000		(371,000)
Conversions of OP Units into common stock, shares				51,000
Redemptions of OP Units	(437,000)	(437,000)									(437,000)
Reallocation adjustment of limited partners' interest	15,000	(98,000)				113,000			113,000		(98,000)
Balance at Dec. 31, 2014	574,855,000	2,431,000	$ 190,661,000	$ 4,753,000	(18,803,000)	791,174,000	(395,087,000)	(3,146,000)	569,552,000	2,872,000	5,303,000
Balance, shares at Dec. 31, 2014			7,950,000	79,213,000
Net income (loss)	21,781,000	28,000					22,146,000		22,146,000	(393,000)	(365,000)
Unrealized gain (loss) on change in fair value of cash flow hedges	(918,000)	(5,000)						(913,000)	(913,000)		(5,000)
Share-based compensation, net	2,399,000			$ 3,000	1,519,000	877,000			2,399,000
Share-based compensation, net, shares				44,000
Common stock sales, net of issuance expenses	41,741,000			$ 345,000		41,396,000			41,741,000
Common stock sales, net of issuance expenses, shares				5,752,000
Preferred stock dividends	(14,408,000)						(14,408,000)		(14,408,000)
Distributions to common shareholders/noncontrolling interests	(17,077,000)	(76,000)					(17,001,000)		(17,001,000)		(76,000)
Conversions / Redemption of OP Units	(7,000)	(289,000)		$ 2,000		280,000			282,000		(289,000)
Conversions / Redemption of OP Units, shares				40,000
Reclassification of mezzanine OP Units	385,000	385,000									385,000
Conversions of OP Units into common stock	282,000
Reallocation adjustment of limited partners' interest	7,000	(12,000)				19,000			19,000		(12,000)
Acquisition of noncontrolling interest	(11,216,000)					(7,767,000)			(7,767,000)	(3,449,000)	(3,449,000)
Balance at Dec. 31, 2015	597,542,000	2,462,000	$ 190,661,000	$ 5,103,000	(17,284,000)	825,979,000	(404,350,000)	(4,059,000)	596,050,000	(970,000)	1,492,000
Balance, shares at Dec. 31, 2015			7,950,000	85,049,000
Net income (loss)	8,764,000	(17,000)					8,943,000		8,943,000	(162,000)	(179,000)
Unrealized gain (loss) on change in fair value of cash flow hedges	4,901,000	24,000						4,877,000	4,877,000		24,000
Share-based compensation, net	2,468,000			$ 16,000	(845,000)	3,297,000			2,468,000
Share-based compensation, net, shares				261,000
Common stock sales, net of issuance expenses	(142,000)					(142,000)			(142,000)
Common stock sales, net of issuance expenses, shares				6,000
Preferred stock dividends	(14,408,000)						(14,408,000)		(14,408,000)
Distributions to common shareholders/noncontrolling interests	(17,120,000)	(71,000)					(17,049,000)		(17,049,000)		(71,000)
Redemptions of OP Units	(8,000)	(8,000)									(8,000)
Reallocation adjustment of limited partners' interest		(1,000)				392,000		(391,000)	1,000		(1,000)
Balance at Dec. 31, 2016	$ 581,997,000	$ 2,389,000	$ 190,661,000	$ 5,119,000	$ (18,129,000)	$ 829,526,000	$ (426,864,000)	$ 427,000	$ 580,740,000	$ (1,132,000)	$ 1,257,000
Balance, shares at Dec. 31, 2016			7,950,000	85,316,000