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ACQUISITIONS (Weighted-average Amortization Periods as of Respective Acquisition) (Details)	1 Months Ended
	Jan. 31, 2017
Sears Stores | Above-market leases
Business Acquisition [Line Items]
Weighted average amortization period	2 years
Sears Stores | In-place leases
Business Acquisition [Line Items]
Weighted average amortization period	2 years 2 months
Sears Stores | Below-market leases
Business Acquisition [Line Items]
Weighted average amortization period	5 years 4 months 20 days
Macy's Stores | In-place leases
Business Acquisition [Line Items]
Weighted average amortization period	2 years 1 month 28 days
Macy's Stores | Below-market leases
Business Acquisition [Line Items]
Weighted average amortization period	2 years 1 month 28 days

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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