Property, Plant and Equipment and Leasehold Intangibles, Net -Schedule of Net Property, Plant and Equipment and Leasehold Intangibles (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	$ 8,785,070	$ 8,942,397
Accumulated depreciation and amortization	(4,461,501)	(4,347,996)
Property, plant and equipment and leasehold intangibles, net	4,323,569	4,594,401
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	550,589	532,719
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	5,829,815	5,667,855
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	1,238,870	1,182,026
Resident in-place lease intangibles
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	268,182	281,041
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	48,354	32,965
Assets under financing leases and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	$ 849,260	$ 1,245,791