Supplemental Disclosure of Cash Flow Information - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Supplemental Disclosure of Cash Flow Information:
Interest paid			$ 178,106	$ 171,317
Income taxes paid, net of (refunds)			1,212	(1,233)
Net cash paid			150,938	174,700
Prepaid expenses and other assets, net			(6,414)	9,347
Investment in unconsolidated ventures			0	(7,589)
Other non-operating (income) loss	$ (3,584)	$ (10,166)	(7,121)	(16,512)
Refundable fees and deferred revenue			2,789	8,518
Non-operating loss (gain) on sale of assets, net			(923)	(860)
Loss (gain) on sale of communities, net	$ 0	$ 0	0	(36,296)
Capital expenditures, net of related payables
Supplemental Disclosure of Cash Flow Information:
Net cash paid			150,938	174,700
Trade accounts payable			(2,334)	(3,828)
Acquisition of assets
Supplemental Disclosure of Cash Flow Information:
Prepaid expenses and other assets, net			0	23
Property, plant and equipment and leasehold intangibles, net			0	6,872
Investment in unconsolidated ventures			0	(3,395)
Other liabilities			0	(384)
Other non-operating (income) loss			0	(2,542)
Net cash paid			0	574
Proceeds from sale of assets, net
Supplemental Disclosure of Cash Flow Information:
Prepaid expenses and other assets, net			(362)	(1,660)
Property, plant and equipment and leasehold intangibles, net			(6,291)	(23,733)
Other liabilities			559	10,021
Refundable fees and deferred revenue			0	9,347
Loss (gain) on sale of communities, net			0	(36,296)
Net cash received			(7,017)	(43,181)
Non-cash lease transactions, net
Supplemental Disclosure of Cash Flow Information:
Property, plant and equipment and leasehold intangibles, net			427,444	(51,542)
Operating lease right-of-use assets			170,867	216,492
Financing lease obligations			(452,897)	88,844
Operating lease obligations			(145,414)	(253,794)
Net			0	0
Non-development | Capital expenditures, net of related payables
Supplemental Disclosure of Cash Flow Information:
Net cash paid			144,634	174,975
Development | Capital expenditures, net of related payables
Supplemental Disclosure of Cash Flow Information:
Net cash paid			624	1,309
Non-development - reimbursable from lessor | Capital expenditures, net of related payables
Supplemental Disclosure of Cash Flow Information:
Net cash paid			$ 8,014	$ 2,244