Real Estate (Summary of Real Estate Subject to Operating Leases) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Land and improvements	$ 2,527,483	$ 2,489,243
Buildings and improvements	6,375,583	6,009,797
Leasehold interests	355	355
Real estate subject to operating leases, gross	8,903,421	8,499,395
Less accumulated depreciation and amortization	(1,470,062)	(1,317,407)
Real estate subject to operating leases, net, before work in process	7,433,359	7,181,988
Work in progress – improvements	7,277	26,673
Accounted for using the operating method	7,440,636	7,208,661
Accounted for using the direct financing method	3,653	3,994
Accounted for using the operating method, net of accumulated depreciation and amortization	7,444,289	7,212,655
Asset under construction
Property, Plant and Equipment [Line Items]
Land and improvements	$ 8,979	$ 8,421