Consolidated Statements Of Comprehensive Income (Loss) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 11,945,000	$ 1,576,000
Other comprehensive income - unrealized gain (loss) on change in fair value of cash flow hedges
Other comprehensive income - unrealized gain (loss) on change in fair value of cash flow hedges	1,340,000	(4,970,000)
Comprehensive income	13,285,000	(3,394,000)
Comprehensive (income) loss attributable to noncontrolling interests	(174,000)	108,000
Comprehensive income (loss) attributable to Cedar Realty Trust, Inc.	$ 13,111,000	$ (3,286,000)