Investment In Real Estate Joint Ventures And Partnerships (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2015 property	Mar. 31, 2014	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Net basis differentials for equity method investments	$ 5,100,000		$ 5,200,000
Management fees revenues, related parties	1,200,000us-gaap_RevenueFromRelatedParties	1,200,000us-gaap_RevenueFromRelatedParties
Number of centers sold	3wri_NumberOfRealEstatePropertiesSold
Gain on sale and acquisition of real estate joint venture and partnership interests	861,000	0	1,700,000
Proceeds from sale and disposition of property	34,600,000wri_GrossProceedsFromSaleOfRealEstate
Gain on sale of property	22,500,000wri_GainsLossesonSalesofProperties
Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures	20.00%
Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures	75.00%
Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures	50.00%		50.00%
Number of centers sold	1		4
Proceeds from sale of unconsolidated joint venture interest, gross			5,100,000
Proceeds from sale and disposition of property	1,100,000		19,900,000
Gain on sale of property	$ 600,000		$ 4,900,000

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

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- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

No definition available.

+ Details

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Related Parties

-URI http://asc.fasb.org/extlink&oid=16382449

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.6-07.1(c))

-URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 07

-Paragraph b

-Subparagraph 1

-Article 6

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- Definition

This item represents the amount of gross sales proceeds received on disposal of an equity method investment.

+ References

No definition available.

+ Details

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Namespace Prefix:	wri_
Data Type:	xbrli:monetaryItemType
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- Definition

This element represents the amount of gain (loss) on sale of properties including discontinued operations.

+ References

No definition available.

+ Details

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- Definition

Gross cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

The number of real estate properties, buildings or undeveloped land parcels sold during the period.

+ References

No definition available.

+ Details

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