Property, Plant and Equipment and Leasehold Intangibles, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	$ 8,914,431		$ 8,914,431		$ 8,347,406
Accumulated depreciation and amortization	(4,273,176)		(4,273,176)		(4,016,777)
Property, plant and equipment and leasehold intangibles, net	4,641,255		4,641,255		4,330,629
Depreciation and amortization expense	90,100	$ 85,900	264,200	$ 255,300
Nonrecurring
Property, Plant and Equipment [Line Items]
Non-cash impairment charges	900	$ 5,300	2,600	$ 5,800
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	497,829		497,829		500,649
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	5,391,214		5,391,214		5,348,133
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	1,156,275		1,156,275		1,111,408
Resident in-place lease intangibles
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	281,041		281,041		282,411
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	30,077		30,077		33,905
Assets under financing leases and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	$ 1,557,995		$ 1,557,995		$ 1,070,900