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Net Investment in Sales-type Leases, Ground Lease Receivables and Loans Receivable, net - Related Party (Schedule of Net Investment in Sales-type Leases) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Lessor, Lease, Description [Line Items]
Total undiscounted cash flows	$ 29,715,761	$ 29,586,227
Unguaranteed estimated residual value	2,915,013	2,900,218
Present value discount	(29,447,714)	(29,379,846)
Allowance for credit losses	(468)	0
Net investment in sales-type leases	3,182,592	3,106,599	$ 3,066,113	$ 2,412,716
Total discounted cash flows	3,153,000	3,077,000
Discounted unguaranteed estimated residual value	30,100	$ 29,100
Noncontrolling Interests
Lessor, Lease, Description [Line Items]
Net investment in sales-type leases	$ 6,500

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Amount, before allowance for credit loss, of net investment in sales-type lease.

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