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, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Segment operating income (loss)	$ (4,352)	$ 1,789	$ (11,882)	$ (6,094)
Depreciation and amortization expense	(4,011)	(4,689)	(8,216)	(9,329)
General and administrative expense	(5,271)	(5,109)	(10,693)	(10,288)
Equity earnings of unconsolidated joint ventures	119	207	94	226
Gain (loss) on sale of assets	9		(1,116)
Other income (expense)	(216)	(86)	123	91
Income (loss) before income taxes	(9,692)	(2,964)	(23,318)	(14,768)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment operating income (loss)	(324)	5,760	(3,598)	2,150
Unallocated Corporate Expense [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization expense	(99)	(176)	(201)	(355)
General and administrative expense	(3,929)	(3,794)	(8,083)	(7,889)
Interest expense, net	$ (5,252)	$ (4,875)	$ (10,537)	$ (8,991)