Commitments and Contingencies - Property Damage from Natural and Other Disaster (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
Apr. 30, 2020	Jun. 30, 2020
Jacksonville Mall, Jacksonville, North Carolina
Loss Contingencies [Line Items]
Net recoveries		$ 0.2
Business interruption recoveries		0.1
Cherry Hill Mall in Cherry Hill, New Jersey
Loss Contingencies [Line Items]
Business interruption recoveries	$ 0.6
Net cost		$ 0.6

Business interruption net cost incurred.

No definition available.

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- Definition

The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=114868897&loc=SL114872001-224240

+ Details

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- Definition

Amount of excess (deficiency) of insurance recovery over the loss incurred from an insured event.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355

+ Details

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- 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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- Details

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