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

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- Definition

The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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.

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No definition available.

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The cash inflow from the sale of real estate held-for-investment and real estate joint ventures.

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Cash received for the sale of real estate that is not part of an investing activity during the current period.

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Investments in Partnerships - Dispositions (Details) - USD ($) $ in Millions	1 Months Ended
	Mar. 31, 2018	Feb. 28, 2018	Mar. 31, 2019
Partnership Interest
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage			25.00%
Undeveloped Land Parcel Adjacent To Gloucester Premium Outlets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains (losses) on sales of investment real estate	$ 0.6
Undeveloped Land Parcel Adjacent To Gloucester Premium Outlets \| Partnership Interest
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from real estate and real estate joint ventures	3.8
Gains (losses) on sales of investment real estate	$ 2.3
Condominium Interest in 907 Market Street, Philadelphia, Pennsylvania
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gains (losses) on sales of investment real estate		$ 2.8
Condominium Interest in 907 Market Street, Philadelphia, Pennsylvania \| Partnership Interest
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage		50.00%
Proceeds from real estate and real estate joint ventures		$ 41.8
Gains (losses) on sales of investment real estate		5.5
Proceeds from sale of real estate		$ 19.7