Property, Plant and Equipment and Leasehold Intangibles, Net - Schedule of Net Property, Plant and Equipment and Leasehold Intangibles (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	$ 8,485,209	$ 8,486,844
Accumulated depreciation and amortization	(4,254,372)	(4,214,147)
Property, plant and equipment and leasehold intangibles, net	4,230,837	4,272,697
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	538,001	544,824
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	5,793,014	5,799,937
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	1,269,993	1,259,410
Resident in-place lease intangibles
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	255,927	260,389
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	36,277	35,788
Assets under financing leases and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	$ 591,997	$ 586,496

Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
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-Section 50
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-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

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Amount, before accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 10
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