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Investments in real estate - Schedule of investment in real estates (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Real Estate
Investment in real estate assets held for sale	$ 31,743,917	$ 32,110,039
Alexandria Center for Life Science - New York City
Real Estate
Gross investments in real estate	175,700
Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations
Real Estate
Investment in real estate assets held for sale	700,269	372,647
North America
Real Estate
Land (related to rental properties)	3,242,824	3,863,027
Buildings and building improvements	20,715,991	20,377,935
Other improvements	4,609,447	4,354,785
Rental properties	28,568,262	28,595,747
Development and redevelopment projects	8,596,264	8,618,727
Gross investments in real estate	37,164,526	37,214,474
Less: accumulated depreciation	(6,120,878)	(5,477,082)
Investments in real estate	$ 31,743,917	$ 32,110,039

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Carrying amount as of the balance sheet date of improvements not otherwise specified in the existing taxonomy.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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