Property, Plant and Equipment and Leasehold Intangibles, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	$ 8,607,180		$ 8,589,429
Accumulated depreciation and amortization	(4,114,178)		(4,053,727)
Property, plant and equipment and leasehold intangibles, net	4,493,002		4,535,702
Finance lease, right-of-use asset	93,200		98,400
Depreciation and amortization expense	84,900	$ 85,700
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	503,488		506,968
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	5,309,368		5,323,736
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	1,061,777		1,055,304
Resident and leasehold operating intangibles
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	283,232		286,122
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	54,315		41,778
Assets under financing leases and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment and leasehold intangibles	$ 1,395,000		$ 1,375,521