Amount of income (loss) for proportionate share of equity method investee's income (loss).

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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.

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The amount of revenue derived from managing real estate properties.

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The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

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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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Investments in Unconsolidated Real Estate Ventures - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Schedule of Equity Method Investments [Line Items]
Proceeds from sale of real estate				$ 154,493	$ 157,810
Loss recognized for sale		$ 965	$ 1,144	17,142	(647)
Landmark \| Woodglen
Schedule of Equity Method Investments [Line Items]
Proceeds from sale of real estate	$ 17,800
Loss recognized for sale	$ 3,000			3,000
Repayments of Secured Debt				12,200
Investments in Unconsolidated Real Estate Ventures
Schedule of Equity Method Investments [Line Items]
Property Management Fee Revenue		$ 6,300	$ 7,200	$ 19,300	$ 21,000