Description Of Business And Segment Reporting (Reconciliation To Net Income Attributable To Common Shareholders) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Segment operating income (loss)	$ 1,789	$ (1,572)	$ (6,094)	$ (13,349)
Depreciation and amortization expense	(4,689)	(5,247)	(9,329)	(10,771)
General and administrative expense	(5,109)	(6,312)	(10,288)	(12,107)
Equity earnings of unconsolidated joint ventures	207	237	226	172
Other income (expense)	(86)	3,773	91	2,990
Income (loss) before income taxes	(2,964)	(905)	(14,768)	(16,735)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment operating income (loss)	5,760	3,364	2,150	(3,744)
Unallocated Corporate Expense [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization expense	(176)	(268)	(355)	(546)
General and administrative expense	(3,794)	(4,668)	(7,889)	(9,059)
Interest expense, net	$ (4,875)	$ (3,343)	$ (8,991)	$ (6,548)