Contingent Assets, Security Deposit

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- Definition

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

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No definition available.

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- Definition

Loss Contingency, Cure Period

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No definition available.

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- Definition

Loss Contingency, Estimate of Possible Loss, Range, Daily Lower Limit

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No definition available.

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- Definition

Loss Contingency, Estimate Of Possible Loss, Range, Daily Upper Limit

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- Definition

Potential Asset Disposition, Consideration

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No definition available.

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- Definition

Real Estate Property, Ownership Interest Sold

+ References

No definition available.

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- Definition

Reversal Of Impairment Charges

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No definition available.

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- Definition

Area of a real estate property.

+ References

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- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
-SubTopic 20
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- Definition

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

+ References

+ Details

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- Definition

The cash inflow from the sale of formerly productive land held for sale, anything permanently fixed to it, including buildings, structures on it, and so forth.

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Investments in real estate - Sale of Real Estate Assets and Impairment of Real Estate (Details) $ in Thousands		1 Months Ended			3 Months Ended		6 Months Ended
	Apr. 10, 2026 USD ($)	Jul. 31, 2026 USD ($) ft²	Jun. 30, 2026 USD ($) ft² property	Dec. 31, 2025 USD ($)	Jun. 30, 2026 USD ($) ft² property	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) ft² property	Jun. 30, 2025 USD ($)
Real Estate Properties
Proceeds from sales of real estate							$ 7,350
Impairment of real estate					$ 222,470	$ 129,606	227,969	$ 161,760
Gain on sales of real estate					0	$ 0	0	$ 13,165
Total accumulated other comprehensive loss/(income)			$ 33,027	$ 566	33,027		$ 33,027
Cure period							30 days
Daily possible loss, lower limit			1		1		$ 1
Daily possible loss, upper limit			$ 2		$ 2		2
H+H and EDC Litigation
Real Estate Properties
Security deposit	$ 5,000
Estimate of possible loss	$ 3,800
North America
Real Estate Properties
Proceeds from sales of real estate							$ 170,350
Area of real estate property \| ft²			36,000,000.0		36,000,000.0		36,000,000.0
Number of real estate properties \| property			336		336		336
Gross investments in real estate			$ 35,129,929	34,103,488	$ 35,129,929		$ 35,129,929
One Hampshire Street
Real Estate Properties
Impairment of real estate				105,700	24,800
Potential Asset Disposition, Consideration					$ 43,700
One Hampshire Street \| Operating Properties
Real Estate Properties
Area of real estate property \| ft²			104,956		104,956		104,956
3911/3931/4025/4031/4045/4075 Sorrento Valley Blvd
Real Estate Properties
Impairment of real estate					$ 28,200
Potential Asset Disposition, Consideration					$ 26,700
3911/3931/4025/4031/4045/4075 Sorrento Valley Blvd \| Operating Properties
Real Estate Properties
Area of real estate property \| ft²			95,814		95,814		95,814
Number of real estate properties \| property			5		5		5
3911/3931/4025/4031/4045/4075 Sorrento Valley Blvd \| Land
Real Estate Properties
Area of real estate property \| ft²			144,000		144,000		144,000
88 Bluxome Street
Real Estate Properties
Impairment of real estate				333,400	$ 29,300
Potential Asset Disposition, Consideration					$ 41,300
88 Bluxome Street \| Future Development Projects
Real Estate Properties
Area of real estate property \| ft²			1,100,000		1,100,000		1,100,000
3825 and 3875 Fabian Way
Real Estate Properties
Proceeds from sales of real estate			$ 163,000
Impairment of real estate				$ 144,700
Reversal Of Impairment Charges			$ (23,300)
3825 and 3875 Fabian Way \| Subsequent Event
Real Estate Properties
Proceeds from sales of real estate		$ 163,000
Real Estate Property, Ownership Interest Sold		100.00%
Gain on sales of real estate		$ 0
3825 and 3875 Fabian Way \| Operating Properties
Real Estate Properties
Area of real estate property \| ft²			228,000		228,000		228,000
3825 and 3875 Fabian Way \| Operating Properties \| Subsequent Event
Real Estate Properties
Area of real estate property \| ft²		228,000
3825 and 3875 Fabian Way \| Future Development Projects
Real Estate Properties
Area of real estate property \| ft²			250,000		250,000		250,000
3825 and 3875 Fabian Way \| Future Development Projects \| Subsequent Event
Real Estate Properties
Area of real estate property \| ft²		250,000
720 Bay Street
Real Estate Properties
Impairment of real estate							$ 61,600
Potential Asset Disposition, Consideration							$ 42,400
720 Bay Street \| Operating Properties
Real Estate Properties
Area of real estate property \| ft²			247,743		247,743		247,743
San Diego Market
Real Estate Properties
Impairment of real estate					$ 64,200
Potential Asset Disposition, Consideration					$ 43,100
San Diego Market \| Land
Real Estate Properties
Area of real estate property \| ft²			425,000		425,000		425,000
Montreal properties
Real Estate Properties
Impairment of real estate							$ 27,800
Potential Asset Disposition, Consideration							134,500
Canada Market
Real Estate Properties
Total accumulated other comprehensive loss/(income)			$ 33,000		$ 33,000		33,000
Alexandria Center for Life Science - New York City
Real Estate Properties
Gross investments in real estate			$ 183,000		$ 183,000		$ 183,000