CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Rental income	$ 133,361	$ 137,683	$ 399,780	$ 426,353
Expenses:
Real estate taxes	14,257	16,414	45,491	49,642
Utility expenses	7,460	7,986	20,462	20,671
Other operating expenses	27,946	27,737	80,637	81,597
Depreciation and amortization	52,266	52,988	155,559	170,993
Loss on impairment of real estate	0	0	0	21,820
Acquisition and transaction related costs	16,135	0	30,534	224
General and administrative	5,720	6,564	17,430	19,353
Total expenses	123,784	111,689	350,113	364,300
Gain on sale of real estate	244	16,925	487	7,437
Interest and other income	281	56	782	73
Interest expense (including net amortization of debt premiums, discounts and issuance costs of $2,276, $2,176, $6,808 and $6,946, respectively)	(28,835)	(24,969)	(80,591)	(78,923)
Loss on early extinguishment of debt	0	0	0	(77)
(Loss) income before income tax expense and equity in net losses of investees	(18,733)	18,006	(29,655)	(9,437)
Income tax expense	(95)	(90)	(336)	(431)
Equity in net losses of investees	(765)	(952)	(2,290)	(2,631)
Net (loss) income	$ (19,593)	$ 16,964	$ (32,281)	$ (12,499)
Weighted average common shares outstanding (basic) (in shares)	48,403	48,286	48,365	48,260
Weighted average common shares outstanding (diluted) (in shares)	48,403	48,286	48,365	48,260
Per common share amounts (basic and diluted):
Net (loss) income (basic) (in dollars per share)	$ (0.41)	$ 0.35	$ (0.67)	$ (0.27)
Net (loss) income (diluted) (in dollars per share)	$ (0.41)	$ 0.35	$ (0.67)	$ (0.27)