Other Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule of Other Assets [Line Items]
Impairment of Real Estate	$ 31,041	$ 0	$ 1,700
Investments	41,287	41,636
Other Prepaid Expense, Current	17,937	30,332
Derivative Asset	17,482	14,515
Property, Plant and Equipment, Net	6,127	6,123
Deferred Costs and Other Assets	6,851	2,637
Goodwill, Impairment Loss	(12,628)	0
Goodwill, Other Increase (Decrease)	1,159	0
Goodwill, Impaired, Accumulated Impairment Loss	2,715	0	0
Goodwill, Gross	316,858	331,884	0
Goodwill	314,143	331,884	$ 0
Equity One Inc. [Member]
Schedule of Other Assets [Line Items]
Goodwill, Purchase Accounting Adjustments	500	331,884
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Schedule of Other Assets [Line Items]
Goodwill, Impairment Loss	0	0
Goodwill, Written off Related to Sale of Business Unit	(4,454)	0
Goodwill, Gross [Member]
Schedule of Other Assets [Line Items]
Goodwill, Impairment Loss	0	0
Goodwill, Other Increase (Decrease)	1,159	0
Goodwill, Gross [Member] | Equity One Inc. [Member]
Schedule of Other Assets [Line Items]
Goodwill, Purchase Accounting Adjustments	500	331,884
Goodwill, Gross [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Schedule of Other Assets [Line Items]
Goodwill, Impairment Loss	(9,913)	0
Goodwill, Written off Related to Sale of Business Unit	(4,454)	0
Accumulated Impairment Losses [Member]
Schedule of Other Assets [Line Items]
Goodwill, Impairment Loss	(12,628)	0
Goodwill, Other Increase (Decrease)	0	0
Accumulated Impairment Losses [Member] | Equity One Inc. [Member]
Schedule of Other Assets [Line Items]
Goodwill, Purchase Accounting Adjustments	0	0
Accumulated Impairment Losses [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Schedule of Other Assets [Line Items]
Goodwill, Impairment Loss	(9,913)	0
Goodwill, Written off Related to Sale of Business Unit	$ 0	$ 0