CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Rental revenue	$ 690,418	$ 679,015	$ 709,508
Fee and other income	36,368	35,222	34,246
Total revenues	726,786	714,237	743,754
Expenses:
Operating	265,438	267,587	264,702
Depreciation and amortization	232,487	235,200	240,104
General and administrative	59,132	64,917	68,556
Transaction related costs	916	1,096	1,999
Total expenses	557,973	568,800	575,361
Other income (expense):
Loss from unconsolidated joint ventures	(24,896)	(18,619)	(4,706)
Income (loss) from unconsolidated real estate funds	782	272	(343)
Interest and other income, net	3,017	4,490	9,844
Interest and debt expense	(142,014)	(144,208)	(156,679)
Loss on early extinguishment of debt			(11,989)
Income (loss) from continuing operations, before income taxes	5,702	(12,628)	4,520
Income tax expense	(3,643)	(1,493)	(312)
Income (loss) from continuing operations, net	2,059	(14,121)	4,208
Loss from discontinued operations, net		(5,075)	(33,811)
Net income (loss)	2,059	(19,196)	(29,603)
Less net (income) loss attributable to noncontrolling interests in:
Consolidated joint ventures	(21,538)	(9,257)	(11,022)
Consolidated real estate fund	(2,893)	1,450	(313)
Operating Partnership	2,018	2,299	4,039
Net loss attributable to common stockholders	$ (20,354)	$ (24,704)	$ (36,899)
Loss per Common Share - Basic:
Loss from continuing operations, net	$ (0.09)	$ (0.09)	$ (0.03)
Loss from discontinued operations, net		(0.02)	(0.13)
Net loss per common share	$ (0.09)	$ (0.11)	$ (0.16)
Weighted average common shares outstanding	218,701,249	222,436,170	231,538,065
Loss per Common Share - Diluted:
Loss from continuing operations, net	$ (0.09)	$ (0.09)	$ (0.03)
Loss from discontinued operations, net		(0.02)	(0.13)
Net loss per common share	$ (0.09)	$ (0.11)	$ (0.16)
Weighted average common shares outstanding	218,701,249	222,436,170	231,538,065