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Number of undeveloped land parcels purchased.

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The number of real estate acquisitions by the entity during the period.

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Number of real estate dispositions

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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.

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A table containing detailed characteristics of finite-lived intangible assets acquired during a business combination. Finite-lived intangible assets are assets that have no physical form, but have expected future economic benefit, and are expected to be used over a defined period. Acquired finite-lived intangible assets are disclosed by major class (assets that can be grouped together because they are similar, either by their nature or by their use in operations of the Entity) and in total. Additionally, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period are also disclosed.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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

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The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

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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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Real Estate Activity (Details) $ in Thousands			3 Months Ended		9 Months Ended
Real Estate Activity (Details) $ in Thousands	Oct. 09, 2020 USD ($)	Oct. 05, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Property Sales [Abstract]
Number of real estate dispositions					6	10
Number of Land Parcel Sold					0	1
Proceeds from Sale of Real Estate					$ 48,276	$ 86,159
Gains (Losses) on Sales of Investment Real Estate					9,915	12,369
Impairment of Real Estate Assets [Abstract]
Impairment charge of real estate			$ 0	$ 35,710	0	74,626
Acquired Finite-Lived Intangible Assets [Line Items]
Proceeds from Sale of Real Estate					$ 48,276	$ 86,159
Number of Land Parcel Sold					0	1
Number of real estate acquisitions					1	1
Payments to Acquire Real Estate					$ 23,000	$ 49,900
Finite-lived Intangible Assets Acquired					$ (1,882)	$ (2,097)
Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table]
Number of Land Parcels Purchased					2	1
In-place leases
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired					$ (1,682)	$ (4,736)
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					16 years	11 years
Above-market leases
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired					$ (120)	$ (825)
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					5 years	8 years
Below-market leases
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					26 years	16 years
Subsequent Event [Member]
Property Sales [Abstract]
Number of Land Parcel Sold	1
Proceeds from Sale of Real Estate	$ 1,100
Acquired Finite-Lived Intangible Assets [Line Items]
Proceeds from Sale of Real Estate	$ 1,100
Number of Land Parcel Sold	1
Number of real estate acquisitions		1
Payments to Acquire Real Estate		$ 18,400