Description Of Business And Segment Reporting (Reconciliation To Net Income Attributable To Common Shareholders) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Segment operating income (loss)	$ (343)	$ 1,019	$ (15,562)	$ (5,073)
Depreciation and amortization expense	(3,926)	(4,580)	(12,142)	(13,908)
General and administrative expense	(4,933)	(5,405)	(15,626)	(15,693)
Equity earnings of unconsolidated joint ventures	71	217	164	443
Gain (loss) on sale of assets	(208)		(1,324)
Other income (expense)	(714)	267	(593)	356
Income (loss) before income taxes	(6,439)	(3,569)	(33,222)	(18,337)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment operating income (loss)	3,609	5,315	(3,329)	7,468
Unallocated Corporate Expense [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization expense	(106)	(172)	(305)	(527)
General and administrative expense	(3,846)	(4,124)	(11,928)	(12,014)
Interest expense, net	$ (5,245)	$ (5,072)	$ (15,907)	$ (14,063)