Real Estate Investments (Details) $ in Thousands, ft² in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2023 USD ($) ft² item property	Dec. 31, 2023 USD ($) ft² property state site item	Dec. 31, 2022 USD ($) ft² site state property item	Dec. 31, 2021 USD ($)	Sep. 30, 2023 Office	Jun. 30, 2023 Office
Real Estate Properties [Line Items]
Number of Real Estate Properties | property	2,135	2,135	1,839
Recognized impairment charges		$ 7,175	$ 1,015	$ 1,919
Land Subject to Ground Leases | ft²	44.2	44.2	38.1
Net Real Estate Investments	$ 6,743,320	$ 6,743,320	$ 5,741,068
Retail Net Lease Assets Purchased | item		282	434
Payments to Acquire Property, Plant, and Equipment		$ 1,200,000	$ 1,600,000
Mortgage notes assumed		$ 42,300	$ 42,300
Number Of States Properties Located | state		40	43
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (in year)		11 years 3 months 18 days	10 years 2 months 12 days
Payments to Acquire Land Held-for-use		$ 325,200	$ 387,700
Payments for Capital Improvements		726,100	1,000,000
Payments to Acquire Intangible Assets		147,400	204,900
Mortgage debt discount		$ 2,548	$ 2,500
Number Of Development And Developer Funding Platform Projects Commenced | site		13	28
Number Of Development And Developer Funding Platform Projects Completed | site		21	7
Number of Development and Developer Funding Platform Projects Construction | site		16	24
Proceeds from Sale of Real Estate		$ 13,800	$ 44,900	56,000
Gains/ (Losses) on Sales of Investment Real Estate		$ 1,800	$ 5,300	14,900
Number of real estate properties held-for-sale | property	1	1	0
Impaired Real Estate Estate Fair Value	$ 6,300	$ 6,300	$ 1,800	$ 1,000
Building
Real Estate Properties [Line Items]
Number Of Buildings | Office						2
Number Of Buildings, Disposed | Office					1
Number Of Bona Fide Offers For Property Held For Sale | item	2
Impairment of Long-Lived Assets to be Disposed of		$ 2,700
Building | Scenario, Plan [Member]
Real Estate Properties [Line Items]
Proceeds from Sale, Property, Held-for-Sale	$ 3,700