Investment In Real Estate Joint Ventures And Partnerships (Schedule Of Combined Condensed Statements Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Schedule of Equity Method Investments [Line Items]
Revenues, net	$ 35,922	$ 37,118
Expenses:
Depreciation and amortization	9,381	9,380
Interest, net	4,008	4,417
Operating	7,603	6,465
Real estate taxes, net	4,492	4,532
General and administrative	143	202
Provision for income taxes	59	68
Impairment loss	1,303	0
Total	26,989	25,064
Gain on dispositions	45,157	22,522
Net income	9,306	13,182
Equity Method Investments [Member]
Expenses:
Gain on sale of non-operating property	373	0
Gain on dispositions	$ 0	$ 1,128