Consolidated Statement Of Equity - 9 months ended Sep. 30, 2017 - USD ($)	Total	Limited Partners' Interest In Operating Partnership [Member]	Preferred Stock [Member] Series B [Member]	Preferred Stock [Member] Series C [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 [Member]	Cedar Shopping Centers, Inc. [Member]	Minority Interests In Consolidated Joint Ventures [Member]	Noncontrolling Interests [Member]
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
Net income (loss)	13,973,000	(22,000)						13,602,000		13,602,000	393,000	371,000
Unrealized gain on change in fair value of flow hedges	1,591,000	6,000							1,585,000	1,585,000		6,000
Share-based compensation, net	2,589,000				$ 15,000	(410,000)	2,984,000			2,589,000
Share-based compensation, net, shares					251,000
Net proceeds from sales of Series C Shares	72,337,000			$ 74,954,000			(2,617,000)			72,337,000
Net proceeds from sales of Series C Shares, Shares				3,000,000
Redemptions of Series B Shares	(112,510,000)		$ (107,927,000)				3,307,000	(7,890,000)		(112,510,000)
Redemptions of Series B Shares, Shares			(4,500,000)
Common stock sales, net of issuance expenses	43,164,000				$ 345,000		42,819,000			43,164,000
Common stock sales, net of issuance expenses, shares					5,752,000
Preferred stock dividends	(10,739,000)							(10,739,000)		(10,739,000)
Distributions to common shareholders/noncontrolling interests	(13,169,000)	(53,000)						(13,116,000)		(13,116,000)		(53,000)
Redemption of OP Units	(11,000)	(11,000)										(11,000)
Reallocation adjustment of limited partners' interest		(102,000)					102,000			102,000		(102,000)
Balance at Sep. 30, 2017	$ 579,222,000	$ 2,207,000	$ 82,734,000	$ 74,954,000	$ 5,479,000	$ (18,539,000)	$ 876,121,000	$ (445,007,000)	$ 2,012,000	$ 577,754,000	$ (739,000)	$ 1,468,000
Balance, shares at Sep. 30, 2017			3,450,000	3,000,000	91,319,000