Consolidated and Combined Statements of Changes in Equity - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands	Total	Urban Edge Properties LP	Urban Edge Properties LP Accumulated Earnings (Deficit)	Urban Edge Properties LP Consolidated Subsidiaries	Urban Edge Properties LP General Partner	Urban Edge Properties LP Limited Partners	Common Shares	Additional Paid-In Capital	Accumulated Earnings (Deficit)	Operating Partnership	Consolidated Subsidiaries
Beginning balance (in shares) at Dec. 31, 2017	113,827,529	113,827,529			113,827,529	12,812,954	113,827,529
Beginning balance at Dec. 31, 2017	$ 990,541	$ 990,541	$ (62,898)	$ 404	$ 947,540	$ 105,495	$ 1,138	$ 946,402	$ (57,621)	$ 100,218	$ 404
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to common shareholders	98,637	109,678	109,678						98,637
Net income attributable to noncontrolling interests	11,075	34		34						11,041	34
Common units issued as a result of common shares issued by Urban Edge (in shares)					116,158
Common units issued as a result of common shares issued by Urban Edge		315	(139)		$ 454
Units redeemed for common shares (in shares)					249,110	(249,110)	249,110
Units redeemed for common shares	2,043	2,043			$ 2,043		$ 2	2,041
Limited partnership units issued, net (in shares)						344,682
Limited partnership units issued, net		0
Reallocation of noncontrolling interests	(2,043)	(2,043)			(21)	$ (2,022)		(21)		(2,022)
Common shares issued (in shares)							116,158
Common shares issued	315						$ 2	452	(139)
Dividends to common shareholders ($0.66 per share)	(75,122)								(75,122)
Distributions to redeemable NCI ($0.66 per unit)	(8,301)									(8,301)
Distributions to Partners ($0.66 per unit)		(83,423)	(83,423)
Share-based compensation expense	6,494	6,494	24		$ 3,469	$ 3,001		3,469	24	3,001
Share-based awards retained for taxes (in shares)					(17,190)		(17,190)
Share-based awards retained for taxes	$ (385)	$ (385)			$ (385)		$ (1)	(384)
Ending balance (in shares) at Sep. 30, 2018	114,175,607	114,175,607			114,175,607	12,908,526	114,175,607
Ending balance at Sep. 30, 2018	$ 1,023,254	$ 1,023,254	$ (36,758)	$ 438	$ 953,100	$ 106,474	$ 1,141	$ 951,959	$ (34,221)	$ 103,937	$ 438