Summary Of Significant Accounting Policies (Supplemental Consolidated Statements Of Cash Flows Information) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Supplemental disclosure of cash activities:
Cash paid for interest	$ 22,191,000	$ 21,359,000	$ 26,296,000
Supplemental disclosure of non-cash activities:
Capitalization of interest and financing costs	1,528,000	$ 684,000	743,000
Issuance of OP Units in connection with a land parcel acquisition	$ 975,000
Mortgage loan payable assumed upon acquisition			$ (8,501,000)