Summary of Significant Accounting Policies - Fair Value (Details) - USD ($) $ in Thousands		Mar. 31, 2023		Dec. 31, 2022		Mar. 31, 2022	Dec. 31, 2021
Assets
Net investment in sales-type leases		$ 3,139,831		$ 3,106,599		$ 2,739,924	$ 2,412,716
Ground Lease receivables		1,431,478	[1]	1,374,716	[1]	1,017,160	$ 796,252
Cash and cash equivalents		20,335	[1]	20,066	[1]	30,561
Restricted cash		27,954	[1]	28,324	[1]	$ 125,708
Liabilities
Debt obligations, net	[1]	3,901,838		3,521,359
Carrying Value
Assets
Net investment in sales-type leases		3,140,000		3,107,000
Ground Lease receivables		1,431,000		1,375,000
Loan receivable, net		112,000
Cash and cash equivalents		20,000		20,000
Restricted cash		28,000		28,000
Liabilities
Debt obligations, net		3,902,000		3,521,000
Carrying Value | Fair Value, Inputs, Level 1
Liabilities
Debt obligations, net		739,000		738,000
Carrying Value | Fair Value, Inputs, Level 3
Liabilities
Debt obligations, net		3,163,000		2,783,000
Fair Value
Liabilities
Debt obligations, net		3,348,000		2,931,000
Fair Value | Fair Value, Inputs, Level 1
Assets
Cash and cash equivalents		20,000		20,000
Restricted cash		28,000		28,000
Liabilities
Debt obligations, net		584,000		573,000
Fair Value | Fair Value, Inputs, Level 3
Assets
Net investment in sales-type leases		3,402,000		3,236,000
Ground Lease receivables		1,631,000		1,501,000
Loan receivable, net		112,000
Liabilities
Debt obligations, net		$ 2,764,000		$ 2,358,000

[1] Refer to Note 2 for details on the Company’s consolidated variable interest entities (“VIEs”).