Real Estate Investments Business Acquisitions, Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Mar. 01, 2017
Business Acquisition, Pro Forma Information [Line Items]
Business Combination, Transaction Costs	$ 4,700		$ 74,400
Business Acquisition, Pro Forma Revenue	261,314	$ 251,107	526,488	$ 501,149
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax	56,435	42,409	123,832	(9,029)
Business Acquisition, Pro Forma Net Income (Loss)	$ 54,624	$ 36,596	$ 109,434	$ (20,416)
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 0.0032	$ 0.0022	$ 0.0064	$ (0.0013)
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 0.0032	$ 0.0022	$ 0.0064	$ (0.0012)
Equity One Inc. [Member]
Business Acquisition, Pro Forma Information [Line Items]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 100,864		$ 135,813
Business Combination, Pro Forma Information, Expenses of Acquiree since Acquisition Date, Actual	$ 23,695
Land					$ 3,019,448
Business Acquisition, Pro Forma Net Income (Loss)			$ 29,464

[Line Items] for Business Acquisition, Pro Forma Information [Table]

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Business Combination, Pro Forma Information, Expenses of Acquiree since Acquisition Date, Actual

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- Definition

Business Combination, Transaction Costs

+ References

No definition available.

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

Amount of real estate acquired, at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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