Segment Reporting (Reconciliation To Net Income Attributable To Common Shareholders) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Segment operating income (loss)	$ (14,033)	$ (12,031)	$ (28,483)
Depreciation and amortization expense	(15,779)	(18,422)	(20,918)
General and administrative expense	(20,161)	(20,172)	(21,416)
Equity earnings of unconsolidated joint ventures	(387)	456	271
Gain (loss) on sale of assets	(1,371)	562	(54)
Other (expense) income	1,528	(164)	6,817
Income (loss) before income taxes	(35,417)	(30,595)	(35,841)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment operating income (loss)	1,882	3,915	(11,210)
Depreciation and amortization expense	(15,392)	(17,711)	(19,846)
General and administrative expense	(4,633)	(4,937)	(5,215)
Unallocated Corporate Expense [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization expense	(387)	(711)	(1,072)
General and administrative expense	(15,528)	(15,235)	(16,201)
Interest expense, net	(21,154)	(19,418)	(14,392)
Equity earnings of unconsolidated joint ventures	(387)	456	271
Gain (loss) on sale of assets	(1,371)	562	(54)
Other (expense) income	1,528	(164)	6,817
Income (loss) before income taxes	$ (35,417)	$ (30,595)	$ (35,841)