CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Revenue	$ 1,410,308,000	$ 1,283,566,000	$ 1,383,212,000
Expenses:
Property operating expenses	1,174,151,000	1,109,070,000	1,091,812,000
Depreciation and amortization	284,083,000	239,280,000	271,131,000
General and administrative	26,131,000	26,435,000	34,087,000
Acquisition and certain other transaction related costs	10,853,000	2,605,000	17,506,000
Impairment of assets	18,380,000	0	(174,000)
Total expenses	1,513,598,000	1,377,390,000	1,414,362,000
Gain on sale of properties	1,205,000	321,862,000	492,272,000
Gains and losses on equity securities, net	8,126,000	(25,660,000)	(42,232,000)
Interest and other income	15,536,000	15,929,000	20,635,000
Interest expense (including net amortization of debt premiums, discounts and issuance costs of $11,811, $8,658 and $13,408, respectively)	(191,775,000)	(209,383,000)	(255,759,000)
Loss on modification or early extinguishment of debt	(2,468,000)	(30,043,000)	(2,410,000)
(Loss) income from continuing operations before income tax expense and equity in net (losses) earnings of investees	(272,666,000)	(21,119,000)	181,356,000
Income tax expense	(445,000)	(710,000)	(1,430,000)
Equity in net (losses) earnings of investees	(20,461,000)	6,055,000	0
Net (loss) income	(293,572,000)	(15,774,000)	179,926,000
Net income attributable to noncontrolling interest	0	0	(5,411,000)
Net (loss) income attributable to common shareholders	$ (293,572,000)	$ (15,774,000)	$ 174,515,000
Weighted average shares used in computing earnings per common share:
Weighted average common shares outstanding (basic) (in shares)	238,836	238,314	237,967
Weighted average common shares outstanding (diluted) (in shares)	238,836	238,314	237,967
Per common share amounts (basic and diluted)
Net income (loss) attributable to common shareholders - basic (in dollars per share)	$ (1.23)	$ (0.07)	$ 0.73
Net income (loss) attributable to common shareholders - diluted (in dollars per share)	$ (1.23)	$ (0.07)	$ 0.73
Affiliated Entity
Expenses:
Equity in net (losses) earnings of investees	$ (20,461,000)	$ 6,055,000	$ 0
Rental income
Revenues:
Revenue	258,400,000	260,740,000	408,589,000
Residents fees and services
Revenues:
Revenue	$ 1,151,908,000	$ 1,022,826,000	$ 974,623,000