CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue:
Rental income	$ 459,872	$ 397,452	$ 387,108
Expenses:
Property operating expense	61,259	57,461	55,301
Property tax expense	41,248	37,590	37,035
Property management fees to non-affiliates	4,066	3,656	3,528
General and administrative expenses	40,479	38,633	26,078
Corporate operating expenses to affiliates	2,520	2,500	2,745
Impairment provision	4,242	23,472	30,734
Depreciation and amortization	209,638	161,056	153,425
Total expenses	363,452	324,368	308,846
Income before other income (expenses)	96,420	73,084	78,262
Other income (expenses):
Interest expense	(85,087)	(79,646)	(73,557)
Management fee income from affiliates	0	0	6,368
Other income, net	1,521	3,228	1,340
Gain (loss) from investment in unconsolidated entities	8	(6,523)	(5,307)
(Loss) gain from disposition of assets	(326)	4,083	29,938
Transaction expense	(966)	0	0
Net income (loss)	11,570	(5,774)	37,044
Distributions to redeemable preferred shareholders	(9,698)	(8,708)	(8,188)
Net (income) loss attributable to noncontrolling interests	(66)	1,732	(3,749)
Net income (loss) attributable to controlling interest	1,806	(12,750)	25,107
Distributions to redeemable noncontrolling interests attributable to common stockholders	(177)	(208)	(320)
Net income (loss) attributable to common stockholders	$ 1,629	$ (12,958)	$ 24,787
Net income (loss) attributable to common stockholders per share, basic (in usd per share)	$ 0	$ (0.06)	$ 0.11
Net income (loss) attributable to common stockholders per share, diluted (in usd per share)	$ 0	$ (0.06)	$ 0.11
Weighted average number of common shares outstanding - basic (shares)	309,250,873	230,042,543	222,531,173
Weighted average number of common shares outstanding - diluted (shares)	309,250,873	230,042,543	222,531,173