Real Estate (Summary of Real Estate Subject to Operating Leases) (Details) - USD ($)		Mar. 31, 2024		Dec. 31, 2023		Mar. 31, 2023
Property, Plant and Equipment [Line Items]
Land and improvements	[1]	$ 2,888,657,000		$ 2,878,400,000
Buildings and improvements		7,459,462,000		7,368,873,000
Leasehold interests		355,000		355,000
Real estate subject to operating leases, gross		10,348,474,000		10,247,628,000
Less accumulated depreciation and amortization		(1,913,861,000)		(1,863,451,000)
Real estate subject to operating leases, net, before work in progress		8,434,613,000		8,384,177,000
Work in progress and improvements		127,025,000		144,068,000
Accounted for using the operating method		8,561,638,000		8,528,245,000
Accounted for using the direct financing method		2,979,000		3,033,000
Classified as held for sale		22,239,000	[2]	4,573,000	[2]	$ 4,573,000
Accounted for using the operating method, net of accumulated depreciation and amortization		8,586,856,000		8,535,851,000
Properties as held for sale		5
Asset under construction
Property, Plant and Equipment [Line Items]
Land and improvements		$ 76,281,000		$ 96,464,000

[1] (1) Includes $76,281 and $96,464 in land for Properties under construction at March 31, 2024 and December 31, 2023, respectively.

[2] (2) As of March 31, 2024, five Properties were classified as held for sale. The property classified as held for sale as of December 31, 2023 was sold during the quarter ended March 31, 2024.