Investments in real estate - Assets held for sale (Details) $ in Thousands	Dec. 31, 2024 USD ($) ft² property	Dec. 31, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investments in real estate	$ 32,110,039	$ 31,633,511
Other assets	1,661,306	1,421,894
Total assets	382,135	194,223
Total liabilities	(13,462)	(4,750)
Total accumulated other comprehensive income	2,584	1,960
Net assets classified as held for sale	$ 371,257	191,433
Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties \| property	10
Investments in real estate	$ 372,647	185,447
Other assets	$ 9,488	$ 8,776
Sorrento Mesa Held For Sale Properties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties \| property	2
Area of Real Estate Property \| ft²	102,392
Net assets classified as held for sale	$ 18,200
Operating property \| Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²	600,870
Future development \| Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Area of Real Estate Property \| ft²	2,400,000

Disposal Group, Including Assets Held For Sale Not Qualifying As Discontinued Operations, Net Assets

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Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Accumulated Other Comprehensive Income (Loss)

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Area of a real estate property.

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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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The number of real estate properties owned as of the balance sheet date.

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Amount of real estate investment property, net of accumulated depreciation, 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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