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Commitments And Contingencies (Narrative) (Details) $ in Millions | Aug. 01, 2018 USD ($) a ft² property contract | Jun. 30, 2018 ft² property
--- | --- | ---
Other Commitments [Line Items] |  |
Number of properties |  | 195
Area of real estate property | ft² |  | 12,500,000
Non-binding Letter Of Intent [Member] |  |
Other Commitments [Line Items] |  |
Number of non-binding letters of intent | contract | 3 |
Number of properties | 3 |
Area of real estate property | ft² | 75,000 |
Total aggregate initial investment | $ | $ 22.7 |
Outstanding Contract With Third Party [Member] |  |
Other Commitments [Line Items] |  |
Outstanding contracts with a third-party | contract | 5 |
Industrial Building [Member] | Outstanding Contract With Third Party [Member] |  |
Other Commitments [Line Items] |  |
Number of properties | 5 |
Area of real estate property | ft² | 672,000 |
Improved Land Parcels [Member] | Non-binding Letter Of Intent [Member] |  |
Other Commitments [Line Items] |  |
Number of properties | 1 |
Area of real estate property | a | 2.3 |
Improved Land Parcels [Member] | Outstanding Contract With Third Party [Member] |  |
Other Commitments [Line Items] |  |
Number of properties | 1 |
Area of real estate property | a | 1.3 |
Improved Land Parcels [Member] | San Francisco Bay Area [Member] | Outstanding Contract With Third Party [Member] |  |
Other Commitments [Line Items] |  |
Number of properties | 1 |
Area of real estate property | a | 1.3 |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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