Acquisitions and Dispositions Acquisitions (Details) $ in Thousands	6 Months Ended
Jun. 30, 2021 USD ($) entities buildings	Jun. 30, 2020 USD ($)
Property, Plant and Equipment [Line Items]
Payments to Acquire Commercial Real Estate	$ 218,788	$ 0
Number of Real Estate Properties \| entities	3
Issuance of Limited Partner Units for acquisition	$ 11,576	0
Real estate assets	326,394
Lease related intangibles	11,796
Total acquired assets	338,190
Below market lease liabilities	$ 43,102
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	11 years
Equity Method Investment, Ownership Percentage	20.00%
Gain (Loss) on Sale of Properties	$ 127,681	$ 15,213
Non-cash distribution of properties from Unconsolidated Joint Ventues
Property, Plant and Equipment [Line Items]
Number of Real Estate Properties \| buildings	2
Number of Unconsolidated Joint Ventures in which Equity Interests Held \| entities	2
Equity Method Investment, Ownership Percentage	50.00%
Gain (Loss) on Sale of Properties	$ 10,600
Assets Received from Distribution	52,200
Repayments of Assumed Debt	40,200
New Jersey Storage Container Lot
Property, Plant and Equipment [Line Items]
Payments to Acquire Commercial Real Estate	64,000
Issuance of Limited Partner Units for acquisition	$ 11,600

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Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Units Issued

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Number of Unconsolidated Joint Ventures in which Equity Interests Held

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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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Amount of acquired leases acquired as part of a real property acquisition at below market lease rate with a finite life.

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Amount of assets acquired at the acquisition date.

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Amount of facility held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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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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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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