Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Goodwill Gross, Beginning balance	$ 316,858	$ 331,884
Goodwill Gross, allocated to Properties held for sale	(2,472)	(1,159)
Goodwill, ending balance	310,388	316,858
Goodwill, Accumulated Impairment Losses, Beginning balance	(2,715)	0
Goodwill Accumulated Impairment Losses, allocated to Provision for impairment	(2,954)	(12,628)
Goodwill Accumulated Impairment Losses, allocated to Properties held for sale	0	0
Goodwill, Accumulated Impairment Losses, Ending balance	(2,954)	(2,715)
Goodwill, Beginning balance	314,143	331,884
Goodwill allocated to Provision for impairment	(2,954)	(12,628)
Goodwill allocated to Properties held for sale	(2,472)	(1,159)
Goodwill, Ending balance	307,434	314,143
Equity One Inc. [Member]
Goodwill [Line Items]
Goodwill, Purchase Accounting Adjustments	0	500
Goodwill, Gross [Member] | Equity One Inc. [Member]
Goodwill [Line Items]
Goodwill, Purchase Accounting Adjustments		500
Accumulated Impairment Losses [Member]
Goodwill [Line Items]
Goodwill allocated to Provision for impairment	(3,000)	(12,600)
Accumulated Impairment Losses [Member] | Equity One Inc. [Member]
Goodwill [Line Items]
Goodwill, Purchase Accounting Adjustments	0	0
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Goodwill [Line Items]
Goodwill Gross, allocated to Provision for impairment	(1,779)	(9,913)
Goodwill Gross, allocated to Gain on sale of real estate	(2,219)	(4,454)
Goodwill Accumulated Impairment Losses, allocated to Provision for impairment	1,779	9,913
Goodwill Accumulated Impairment Losses, allocated to Gain on sale of real estate	936	0
Goodwill allocated to Provision for impairment	0	0
Goodwill allocated to Gain on sale of real estate	$ (1,283)	$ (4,454)