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Real Estate (Summary of Real Estate Subject to Operating Leases) (Details) - USD ($) | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |  |
Land and improvements | [1] | $ 2,888,355,000 | $ 2,878,400,000
Buildings and improvements |  | 7,526,840,000 | 7,368,873,000
Leasehold interests |  | 355,000 | 355,000
Real estate subject to operating leases, gross |  | 10,415,550,000 | 10,247,628,000
Less accumulated depreciation and amortization |  | (1,958,444,000) | (1,863,451,000)
Real estate subject to operating leases, net, before work in progress |  | 8,457,106,000 | 8,384,177,000
Work in progress and improvements |  | 117,754,000 | 144,068,000
Accounted for using the operating method |  | 8,574,860,000 | 8,528,245,000
Accounted for using the direct financing method |  | 2,634,000 | 3,033,000
Classified as held for sale | [2] | 9,442,000 | 4,573,000
Accounted for using the operating method, net of accumulated depreciation and amortization |  | 8,586,936,000 | 8,535,851,000
Asset under construction |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Land and improvements |  | $ 56,895,000 | $ 96,464,000
[1] |
(1) | Includes $56,895 and $96,464 in land for Properties under construction at June 30, 2024 and December 31, 2023, respectively.
[2] |
(2) | As of June 30, 2024, six Properties were classified as held for sale. The one property classified as held for sale as of December 31, 2023 was sold during the six months ended June 30, 2024.

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