Investments - Summary of Gross Investment Activity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) investmentLocation	Mar. 31, 2023 USD ($) investmentLocation	Dec. 31, 2023 USD ($)
Number of Investment Locations
Beginning balance | investmentLocation	1,873	1,653
Acquisitions of and additions to real estate investments | investmentLocation	74	56
Sales of investments in real estate | investmentLocation	(7)	(16)
Relinquishment of properties at end of ground lease term | investmentLocation	(2)	(1)
Investments in loans receivable | investmentLocation	5	1
Principal collections on and settlements of loans and direct financing lease receivables | investmentLocation	(6)	(5)
Ending balance | investmentLocation	1,937	1,688
Dollar Amount of Investments
Beginning balance	$ 4,915,246	$ 4,055,385
Acquisitions of and additions to real estate investments	235,046	203,518
Sales of investments in real estate	(10,750)	(33,641)
Relinquishment of properties at end of ground lease term	(1,330)	(837)
Provisions for impairment of real estate	(3,752)	(677)
Investments in loans and direct financing lease receivables	14,894	3,400
Principal collections on and settlements of loans and direct financing lease receivables	(2,841)	(11,734)
Other	(276)	(929)
Ending balance	5,146,237	4,214,485
Less: accumulated depreciation and amortization	(393,784)	(297,362)	$ (367,133)
Net investments	$ 4,752,453	$ 3,917,123	$ 4,548,113