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Summary Of Significant Accounting Policies (Supplemental Consolidated Statements Of Cash Flows Information) (Details) - USD ($) | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017
Supplemental disclosure of cash activities: |  |
Cash paid for interest | $ 16,593,000 | $ 15,945,000
Supplemental disclosure of non-cash activities: |  |
Capitalization of interest and financing costs | 1,125,000 | $ 483,000
Issuance of OP Units in connection with a land parcel acquisition | $ 975,000 |

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