Consolidated Statements Of Comprehensive Income (Loss) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 6,305,000	$ 6,417,000	$ (378,000)	$ 13,973,000
Other comprehensive income - unrealized gain on change in fair value of cash flow hedges	2,129,000	1,279,000	9,956,000	1,591,000
Comprehensive income	8,434,000	7,696,000	9,578,000	15,564,000
Comprehensive (income) attributable to noncontrolling interests	(174,000)	(122,000)	(411,000)	(377,000)
Comprehensive income attributable to Cedar Realty Trust, Inc.	$ 8,260,000	$ 7,574,000	$ 9,167,000	$ 15,187,000