Entities without observable price changes
Entities without observable price changes [Member]
Entities without observable price changes [Member]
Operating leases
Operating Lease, Lease Income
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total future payments under our operating leases in which we are the lessee
Lessee, Operating Lease, Liability, to be Paid
International operations
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Net income (loss)
Net income (loss)
Net income (loss)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity, Primary Beneficiary [Member]
Principal
Long-Term Debt, Gross
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Unsecured senior lines of credit, fair value
Lines of Credit, Fair Value Disclosure
Area of real estate property
Area of Real Estate Property
Other liabilities
Other Accounts Payable and Accrued Liabilities
2024
Long-Term Debt, Maturity, Year Two
Investment loss
Gain (Loss) on Investments
Accounts payable and accrued expenses
Accounts Payable and Other Accrued Liabilities
Debt Instrument [Axis]
Debt Instrument [Axis]
Gross investments in real estate
Real Estate Investment Property, at Cost
Dividends on common stock
Payments of Ordinary Dividends, Common Stock
Line of Credit Facility, Maximum Borrowing Capacity
Line of Credit Facility, Maximum Borrowing Capacity
1450 Owens Street
1450 Owens Street [Member]
1450 Owens Street
Net assets held for sale [Abstract]
Real Estate Held for Development and Sale [Abstract]
Issuer and guarantor subsidiaries of guaranteed securities
Issuer and guarantor subsidiaries of guaranteed securities [Policy Text Block]
Issuer and guarantor subsidiaries of guaranteed securities [Policy Text Block]
Unrealized foreign currency translation gains arising during the period
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax
Investments in real estate
Real Estate Disclosure [Text Block]
Revenues subject to the new lease accounting standard
Revenues subject to the lease accounting standard
Lease Income
Investments
Investment [Text Block]
Additional paid-in capital
Additional Paid in Capital
Deferred compensation plan
Deferred Compensation Plan Assets
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Applicable margin (as a percent)
Debt Instrument, Basis Spread on Variable Rate
Percentage of properties subject to ground leases
Percentage of Properties Subject to Ground Leases
Percentage of Properties Subject to Ground Leases
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Unconsolidated Real Estate Joint Ventures Debt
Unconsolidated Real Estate Joint Venture Debt [Abstract]
Unconsolidated Real Estate Joint Venture Debt [Abstract]
Deferred leasing costs
Deferred Costs Leasing and Finance Net
Represents the aggregate of deferred leasing and financing costs net of accumulated amortization.
Short-term Debt, Type [Axis]
Short-Term Debt, Type [Axis]
Number of properties held for sale
Number Of Properties Held For Sale
Number Of Properties Held For Sale
Operating lease discount rate
Operating Lease, Weighted Average Discount Rate, Percent
Stated interest rate (as a percent)
Debt Instrument, Interest Rate, Stated Percentage
211 and 213 East Grand Avenue
213 East Grand Avenue [Member]
213 East Grand Avenue
2.95% Unsecured Senior Notes Payable
2.95% Unsecured Senior Notes Payable [Member]
2.95% Unsecured Senior Notes Payable
Dividends payable
Dividends Payable
Net income (loss) attributable to Alexandria Real Estate Equities, Inc.’s stockholders
Net Income (Loss) Attributable to Parent
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Cumulative Effect, Period of Adoption [Axis]
Cumulative Effect, Period of Adoption [Axis]
Secured notes payable
Secured Debt
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Below-market leases
Below Market Lease, Gross
Operating Lease Liabilities, Payments Due
Lessee, Operating Lease, Liability, to be Paid [Abstract]
Thereafter
Lessee, Operating Lease, Liability, to be Paid, after Year Five
1401/1413 Research Boulevard
1401/1413 Research Boulevard [Member]
1401/1413 Research Boulevard [Member]
Total Value of Assets Acquired
Total Value of Assets Acquired
Total Value of Assets Acquired
Equity Component [Domain]
Equity Component [Domain]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Fair value measured on nonrecurring basis
Fair Value, Nonrecurring [Member]
Earnings Per Share Reconciliation
Earnings Per Share Reconciliation [Abstract]
Secured notes payable
Secured notes payable
Secured Debt [Member]
Ownership [Axis]
Ownership [Axis]
Number of real estate properties acquired
Number Of Real Estate Properties Acquired
Number of real estate properties acquired
Investment, Name [Domain]
Investment, Name [Domain]
Leases
Lessee, Operating Leases [Text Block]
Acquired below-market leases
Below Market Lease, Net
Investments in privately held entities that do not report NAV
Investments in privately held entities that do not report NAV [Member]
Investments in privately held entities that do not report NAV [Member]
Payments of loan fees
Payments of Financing Costs
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Plan Name [Axis]
Plan Name [Axis]
Remaining lease term for ground lease obligation
Ground Lease Obligation Remaining Lease Term
Represents the term of ground lease obligation.
4.00% Unsecured Senior Notes Payables Due 2050
4.00% Unsecured Senior Notes Payables Due 2050 [Member]
4.00% Unsecured Senior Notes Payables Due 2050 [Member]
Other
Other markets [Member]
Other markets [Member]
Real Estate
Real Estate [Line Items]
Supplemental Disclosure and Non-Cash Investing and Financing Activities:
Supplemental Cash Flow Information [Abstract]
Redeemable Noncontrolling Interests
Redeemable Noncontrolling Interests [Member]
This element represents that portion of equity (net assets) in a subsidiary attributable to redeemable noncontrolling interests.
Noncontrolling Interest [Abstract]
Noncontrolling Interest [Abstract]
Plan Name [Domain]
Plan Name [Domain]
2023
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year
Active Development/Redevelopment
Active Development/Redevelopment [Member]
Active Redevelopment [Member]
Amortization of acquired above- and below-market leases
Amortization of above and below Market Leases
Below-market leases
Above and Below Market Leases [Member]
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Unsecured senior line of credit and commercial paper
Unsecured senior lines of credit
Long-Term Line of Credit
Entity Address, State or Province
Entity Address, State or Province
Quoted prices in active markets for identical assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Contributions from and sales of noncontrolling interests
Noncontrolling Interest, Increase from Sale of Parent Equity Interest
Percentage of unhedged floating rate total debt
Variable Interest Rate Debt as Percentage of Total Outstanding Balance
Represents the outstanding balance of variable interest rate debt as a percentage of aggregate debt outstanding.
Ground and operating leases
Ground and Operating Leases [Member]
Ground and Operating Leases [Member]
275 Grove Street
275 Grove Street [Member]
275 Grove Street
Number of excess stock authorized issued and outstanding (in shares)
Preferred Stock Shares Additional Shares Authorized Issued and Outstanding
Represents the number of an additional series of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued and outstanding.
Contract with customer, asset, adjustment for allowance for credit loss
Contract with customer, asset, adjustment for allowance for credit loss
Contract with customer, asset, adjustment for allowance for credit loss
Summary of significant accounting policies
Basis of Presentation and Significant Accounting Policies [Text Block]
Unsecured senior notes payable, fair value
Senior Notes Fair Value Disclosure
Including the current and noncurrent portions, fair value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Leases
Lessor, Sales-type Leases [Text Block]
Number of real estate properties subject to ownership from noncontrolling interest
Number Of Real Estate Properties Subject To Ownership From Noncontrolling Interest
Number of real estate properties subject to ownership from noncontrolling interest
Purchase Option Term [Domain]
Purchase Option Term [Domain]
Purchase Option Term [Domain]
Leasee operating costs
Lease, Cost [Abstract]
2026
Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Three
Other liabilities
Other Liabilities
Expenses:
Costs and Expenses [Abstract]
Direct financing lease, remaining lease term
Lessor, Direct Financing Lease, Remaining Lease Term
Lessor, Direct Financing Lease, Remaining Lease Term
Schedule of Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Commercial paper, fair value disclosure
Commercial paper, fair value disclosure
Commercial paper, fair value disclosure
5200 Illumina Way
5200 Illumina Way [Member]
5200 Illumina Way [Member]
Schedule of Cash and Cash Equivalents [Table]
Schedule of Cash and Cash Equivalents [Table]
Contribution of assets from real estate joint venture partner
Noncash or Part Noncash Acquisition, Value of Assets Acquired
Total liabilities
Total liabilities
Liabilities
Weighted average remaining lease term
Operating Lease, Weighted Average Remaining Lease Term
Geographical [Axis]
Geographical [Axis]
Investing Activities
Net Cash Provided by (Used in) Investing Activities [Abstract]
Issuance of common stock
Stock Issued During Period, Value, New Issues
Increase (Decrease) in Temporary Equity [Roll Forward]
Increase (Decrease) in Temporary Equity [Roll Forward]
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy and NAV [Domain]
Real Estate [Table]
Real Estate [Table]
Prepaid expenses
Prepaid Expense
Recognition of revenue arising from contracts with customers
Revenue from Contract with Customer [Policy Text Block]
Redeemable noncontrolling interests
Beginning balance
Ending balance
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests
Shares of preferred stock issued and outstanding
Preferred Stock, Shares Issued
Document Type
Document Type
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Estimated useful life
Property, Plant and Equipment, Useful Life
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Weighted average remaining lease term
Weighted average remaining lease term
Weighted average remaining lease term
Return of capital from unconsolidated real estate joint ventures
Proceeds from Equity Method Investment, Distribution, Return of Capital
Secured and unsecured senior debt
Debt Disclosure [Text Block]
Investments in real estate
Investments in real estate
Real Estate Investment Property, Net
Product and Service [Domain]
Product and Service [Domain]
Accounting Standards Update 2014-09 - Revenue from Contract with Customers
Accounting Standards Update 2014-09 [Member]
Entity Shell Company
Entity Shell Company
Investments [Abstract]
Investments [Abstract]
Assets held for sale - area of real estate
Disposal Group Including Assets Held for Sale, Not Qualifying as Discontinued Operations, Area of Real Estate
Disposal Group Including Assets Held for Sale, Not Qualifying as Discontinued Operations, Area of Real Estate
Schedule of net investment income
Investment Income [Table Text Block]
2024
Lessee, Operating Lease, Liability, to be Paid, Year One
Accounts payable, accrued expenses, and other liabilities
Other Liabilities Disclosure [Text Block]
Percentage of total revenues
Percentage of total revenues
Percentage of total revenues
2025
Long-Term Debt, Maturity, Year Three
Subsequent Event
Subsequent Event [Member]
Document Period End Date
Document Period End Date
Summary of Investment [Abstract]
Summary of Investment [Abstract]
Summary of Investment [Abstract]
Revenues subject to the revenue recognition accounting standard
Revenue Subject To The ASU On Recognition Of Revenue Arising From Contracts With Customers
Revenue subject to the ASU on recognition of revenue arising from contracts with customers
Net investment in direct financing and sales-type leases
Net investment in direct financing and sales-type leases [Table Text Block]
Net investment in direct financing and sales-type leases
101 West Dickman Street
101 West Dickman Street [Member]
101 West Dickman Street
3215 Merryfield Row
3215 Merryfield Row [Member]
3215 Merryfield Row
Lessor, Lease, Description [Table]
Lessor, Lease, Description [Table]
Finite-lived intangible assets, acquired through acquisitions
Finite-lived intangible assets, acquired through acquisitions
Finite-lived intangible assets, acquired through acquisitions
Total assets
Total assets
Assets
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Earnings Per Share [Abstract]
Earnings Per Share [Abstract]
1655 and 1725 Third Street
1655 and 1715 Third Street [Member]
1655 and 1715 Third Street [Member]
Investments in publicly traded companies
Investments in publicly traded companies [Member]
Investments in publicly traded companies [Member]
Forward Contract Indexed to Issuer's Equity, Type [Axis]
Forward Contract Indexed to Issuer's Equity, Type [Axis]
Revenues subject to new revenue recognition and lease ASUs
Revenues subject to new accounting standards [Table Text Block]
Revenues subject to new accounting standards [Table Text Block]
2.75% Unsecured Senior Notes Payable Due 2029
2.75% Unsecured Senior Notes Payable Due 2029 [Member]
2.75% Unsecured Senior Notes Payable Due 2029 [Member]
Investments at fair value, book value
Investments at fair value
Equity Securities, FV-NI, Current
Repayments of borrowings under commercial paper program
Repayments of Commercial Paper
Schedule of accounts payable and accrued liabilities
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
Unsecured Debt
Unsecured Debt [Member]
Fair Value Measurements, Nonrecurring Value Measurement [Abstract]
Fair Value Measurements, Nonrecurring Value Measurement [Abstract]
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Weighted average remaining amortization period, acquired in-place and below-market leases
Weighted average remaining amortization period, acquired in-place and below-market leases
Weighted average remaining amortization period, acquired in-place and below-market leases
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note [Abstract]
Direct Financing and Sales-Type Leases, Future Minimum Payments Receivable
Sales-Type and Direct Financing Leases, Lease Receivable, Payments to be Received, Fiscal Year Maturity [Abstract]
Unsecured senior line of credit
Line of Credit [Member]
Cumulative Effect, Period of Adoption [Domain]
Cumulative Effect, Period of Adoption [Domain]
Lessor, Lease, Description [Line Items]
Lessor, Lease, Description [Line Items]
Noncontrolling interests
Noncontrolling Interest Disclosure [Text Block]
Earnings per share
Earnings Per Share [Text Block]
Thereafter
Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, after Year Five
Less: allowance for credit losses
Net Investment in Lease, Allowance for Credit Loss
Schedule of Investments
Schedule of Investments [Line Items]
Comprehensive income (loss)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Leases, lessor accounting
Lessor, Leases [Policy Text Block]
Number of "excess stock" authorized (in shares)
Preferred Stock Shares Additional Shares Authorized
Represents the maximum number of an additional series of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter.
Investments in privately held entities that report NAV
Limited partnerships [Member]
Limited partnerships [Member]
3.95% Unsecured Senior Notes Payable Due in 2028
3.95% Unsecured Senior Notes Payable Due in 2028 [Member]
3.95% Unsecured Senior Notes Payable Due in 2028 [Member]
Secured debt maturing on 12/23/24
Secured debt maturing on 12/23/24 [Member]
Secured debt maturing on 12/23/24
Funds held in escrow for real estate acquisitions
Funds held in escrow related to construction projects and investing activities [Member]
Funds held in escrow related to construction projects and investing activities [Member]
Cumulative unrealized losses on investments
Cumulative unrealized losses on investments
Cumulative unrealized losses on investments
Revenue
Income from rentals
Revenue from Contract with Customer, Including Assessed Tax
Entity Registrant Name
Entity Registrant Name
Issuances of common stock (in shares)
Stock Issued During Period, Shares, New Issues
China
CHINA
Subsequent Events
Subsequent Events [Text Block]
Accounts payable, accrued expenses, and other liabilities
Total
Accounts Payable and Accrued Liabilities
Net assets classified as held for sale
Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Net Assets
Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Net Assets
Entity Address, City or Town
Entity Address, City or Town
Other
Other restricted cash [Member]
Other restricted cash [Member]
Leases [Abstract]
Leases [Abstract]
Total assets
Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Assets
Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Assets
Total equity
Beginning balance
Ending balance
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Total issuance of unsecured senior notes in Feb 2023
Total issuance of unsecured senior notes in Feb 2023 [Member]
Total issuance of unsecured senior notes in Feb 2023
4.50% Unsecured Senior Notes Payable
Unsecured Senior Notes Due in July 2029 [Member]
Unsecured Senior Notes Due in July 2029 [Member]
Asset Class [Domain]
Asset Class [Domain]
Interest expense incurred
Interest Costs Incurred [Abstract]
Minimum
Minimum [Member]
4.85% Unsecured Senior Notes Payable
4.85% Unsecured Senior Note Payable [Member]
4.85% Unsecured Senior Note Payable [Member]
Noncontrolling interests
Noncontrolling interests’ share of equity
Stockholders' Equity Attributable to Noncontrolling Interest
Restricted cash
Restricted Cash and Cash Equivalents, Current
Ground and operating lease obligation due
Ground and Operating Lease Obligation Due
Represents the aggregate amount of ground and operating lease obligation due.
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Entity Emerging Growth Company
Entity Emerging Growth Company
Remaining lease term
Lessor, Operating Lease, Remaining Lease Term
Lessor, Operating Lease, Remaining Lease Term
2027
Lessor, Operating Lease, Payment to be Received, Year Four
Deferred financing costs – unsecured senior line of credit
Debt Issuance Costs, Net
Investment, Name [Axis]
Investment, Name [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Accounting Standards Update [Axis]
Fair value measurements
Fair Value Disclosures [Text Block]
Other assets
Other Assets Disclosure [Text Block]
Trading Symbol
Trading Symbol
Entity File Number
Entity File Number
Commercial paper, maximum issuance
Commercial paper, maximum issuance
Commercial paper, maximum issuance
Borrowings from secured notes payable
Proceeds from Secured Notes Payable
Total investments held
Total investments held [Member]
Total investments held
Unconsolidated real estate joint ventures [Abstract]
Unconsolidated real estate joint ventures [Abstract]
Unconsolidated real estate joint ventures [Abstract]
Allowance for credit losses
Allowance for Credit Losses [Text Block]
Canada
CANADA
Less: comprehensive income attributable to noncontrolling interests
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Unrealized gains on foreign currency translation:
Unrealized gains (losses) on foreign currency translation [Abstract]
Unrealized gains (losses) on foreign currency translation [Abstract]
4.75% Unsecured Senior Notes Payable
4.75% Unsecured Senior Notes Payable [Member]
4.75% Unsecured Senior Notes Payable
Investment Income, Net [Abstract]
Investment Income, Net [Abstract]
Campus Point by Alexandria
Campus Point by Alexandria [Member]
Campus Point by Alexandria
3.375% Unsecured Senior Notes Payable
3.375% Unsecured Senior Notes Payable [Member]
3.375% Unsecured Senior Notes Payable [Member]
Use of estimates
Use of Estimates, Policy [Policy Text Block]
Net book value for the exclusion of one ground lease related to one operating property
Ground Lease Related to Operating Property, Net Book Value
Represents the net book value of ground leases related to operating property.
Acquired in-place leases
Leases, Acquired-in-Place [Member]
Weighted average maturity years
Weighted average maturity years
Weighted average maturity years
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments and Joint Ventures [Abstract]
Number of properties associated with lease extensions executed
Number Of Properties Associated With Lease Extensions Executed
Number Of Properties Associated With Lease Extensions Executed
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Subsequent Events [Abstract]
Subsequent Events [Abstract]
Change in escrow deposits
Payments for (Proceeds from) Deposits on Real Estate Acquisitions
Purchase Option Term [Axis]
Purchase Option Term [Axis]
Purchase Option Term
Weighted Average Interest Rate
Debt, Weighted Average Interest Rate
Land parcel subject to lease agreement that contains a purchase option
Land parcel subject to lease agreement that contains a purchase option
Land parcel subject to lease agreement that contains a purchase option
Cash paid during the period for interest, net of interest capitalized
Interest Paid, Excluding Capitalized Interest, Operating Activities
Earnings (loss) per share – basic (USD per share)
Earnings Per Share, Basic
2026
Lessee, Operating Lease, Liability, to be Paid, Year Three
Schedule of Equity Method Investments [Table]
Schedule of Equity Method Investments [Table]
4.70% Unsecured Senior Notes Payable
4.70% Unsecured Senior Notes Payable [Member]
4.70% Unsecured Senior Notes Payable [Member]
15 Necco Street
15 Necco Street [Member]
15 Necco Street
Land improvements
Land Improvements [Member]
Distributions to and purchases of noncontrolling interests
Payments to noncontrolling interests
Payments to Noncontrolling Interests
Cash, cash equivalents, and restricted cash summary
Restrictions on Cash and Cash Equivalents [Table Text Block]
Counterparty Name [Domain]
Counterparty Name [Domain]
Pacific Technology Park
Pacific Technology Park [Member]
Pacific Technology Park
Alexandria Real Estate Equities, Inc.’s stockholders’ equity
Alexandria Real Estate Equities, Inc.’s share of equity
Stockholders' Equity Attributable to Parent
All Forward Equity Sales Agreements Outstanding
All Forward Equity Sales Agreements Outstanding [Member]
All Forward Equity Sales Agreements Outstanding
Entities with observable price change
Entities with observable price change [Member]
Entities with observable price change [Member]
Notes receivable
Financing Receivable, after Allowance for Credit Loss
Ownership [Domain]
Ownership [Domain]
ATM common stock offering program [Abstract]
ATM common stock offering program [Abstract]
ATM common stock offering program [Abstract]
Entity Interactive Data Current
Entity Interactive Data Current
Noncontrolling interests
Noncontrolling Interest [Line Items]
2024
Lessor, Operating Lease, Payment to be Received, Year One
Other improvements
Improvements Others
Carrying amount as of the balance sheet date of improvements not otherwise specified in the existing taxonomy.
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Investments in real estate and properties classified as held for sale
Rental Properties Net Land Held for Future Development Construction in Progress and Discontinued Operations [Policy Text Block]
Disclosure of accounting policy for assets acquired and noncontrolling interest in an acquired entity at their fair value as of the acquisition date, values allocated to land improvements, values of acquired above and below market lease amortization, construction in progress and discontinued operations.
Changes in operating assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
2027
Long-Term Debt, Maturity, Year Five
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Retained Earnings
Retained Earnings [Member]
Dividends declared on common stock
Dividends declared on common stock
Dividends, Common Stock, Cash
Cash and Cash Equivalents
Cash and Cash Equivalents [Line Items]
2026
Lessor, Operating Lease, Payment to be Received, Year Three
Expenses for operating leases in which we are the lessee
Lease, Cost
Common Stock
Common Stock [Member]
Facility fee rate adjustment amount, maximum
Debt Instrument, Facility Fee Rate Adjustment Amount, Maximum
Debt Instrument, Facility Fee Rate Adjustment Amount, Maximum
Unsecured senior notes payable
Senior Notes, Noncurrent
Lessee Operating Costs
Lease, Cost [Table Text Block]
Commercial paper program
Commercial Paper
Thereafter
Long-Term Debt, Maturity, after Year Five
Income taxes
Income Tax, Policy [Policy Text Block]
Statement [Table]
Statement [Table]
Summary of net assets of discontinued operations and (loss) income from discontinued operations, net
Disposal Groups, Including Discontinued Operations [Table Text Block]
Interest Rate
Effective rate (as a percent)
Debt Instrument, Interest Rate, Effective Percentage
Document Quarterly Report
Document Quarterly Report
3.80% Unsecured Senior Notes Payable
3.80% Unsecured Senior Notes Payable [Member]
3.80% Unsecured Senior Notes Payable
Direct Financing Lease, Net Investment in Leases
Direct Financing Lease, Net Investment in Lease, before Allowance for Credit Loss [Abstract]
50 and 60 Binney Street
50 and 60 Binney Street [Member]
50 and 60 Binney Street
Dilutive effect of forward equity sales agreements
Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations and Disposal Groups [Abstract]
New Partner
New Partner [Member]
New Partner
Cash, cash equivalents, and restricted cash [Abstract]
Cash, cash equivalents, and restricted cash [Abstract]
Cash, cash equivalents, and restricted cash [Abstract]
SD Tech by Alexandria
SD Tech by Alexandria [Member]
SD Tech by Alexandria [Member]
Summary of investments
Investment [Table Text Block]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Realized gains
Equity Securities, FV-NI, Realized Gain (Loss)
Summers Ridge Science Park
Summers Ridge Science Park [Member]
Summers Ridge Science Park
Secured notes payable maturing on 11/19/26
Secured notes payable maturing on 11/19/26 [Member]
Secured notes payable maturing on 11/19/26
Accounts payable, accrued expenses, and other liabilities
Increase (Decrease) in Operating Liabilities
Long-term debt
Long-term Debt, Percentage Bearing Fixed Interest, Amount, Net
Long-term Debt, Percentage Bearing Fixed Interest, Amount, Net
Equity Components [Axis]
Equity Components [Axis]
Contributions from and sales of noncontrolling interests
Proceeds from Noncontrolling Interests
Fair value measured on recurring basis
Fair Value, Recurring [Member]
Weighted Average Remaining Terms (in years)
Debt Instrument, Weighted Average Remaining Period
Represents the weighted average remaining term of the debt instrument in years.
Consolidated VIE's balance sheet information [Abstract]
Consolidated VIE's balance sheet information [Abstract]
Consolidated VIE's balance sheet information [Abstract]
Document Fiscal Year Focus
Document Fiscal Year Focus
Operating Activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Statement [Line Items]
Statement [Line Items]
Monitoring tenant credit quality
Tenant Credit Quality [Policy Text Block]
Tenant Credit Quality [Policy Text Block]
Variable Rate [Domain]
Variable Rate [Domain]
Buildings and building improvements
Investment Building and Building Improvements
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Direct financing and sales-type leases
Sales-type and Direct Financing Leases, Interest Income
Number of Tenants
Number of Tenants
Represents the number of tenants.
Common stock available for future issuance (in dollars)
Common Stock Value Available for Future Issuance
Represents the aggregate value of shares available for future issuance by the entity.
Operating lease right-of-use assets
Operating Lease, Right-of-Use Asset
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent [Member]
Existing Partner
Existing Partner [Member]
Existing Partner
Facility fee rate adjustment amount, decrease
Line of Credit Facility, Commitment Fee Percentage, Period Increase (Decrease)
Line of Credit Facility, Commitment Fee Percentage, Period Increase (Decrease)
Investments in privately held entities that do not report NAV, cumulative downward price adjustment
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amount
400 Dexter Avenue North
400 Dexter Avenue North [Member]
400 Dexter Avenue North
Impairment of long-lived assets
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
601, 611, 651, 681, 685, and 701 Gateway Boulevard
601, 611, 651, 681, 685, and 701 Gateway Boulevard [Member]
601, 611, 651, 681, 685, and 701 Gateway Boulevard
2025
Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Two
Document Transition Report
Document Transition Report
Equity Method Investment, Nonconsolidated Investee [Axis]
Equity Method Investment, Nonconsolidated Investee [Axis]
Local Phone Number
Local Phone Number
Rent commence date
Rent Commence Date
Rent Commence Date
New Accounting Pronouncements, Policy
New Accounting Pronouncements, Policy [Policy Text Block]
Schedule of maturities of secured and unsecured debt
Schedule of Maturities of Secured and Unsecured Debt [Table Text Block]
Tabular disclosure of the amount of fixed rate/hedged and unhedged floating rate debt and their respective principal maturities for each of the five years and thereafter following the date of the latest balance sheet date presented.
Lease liability
Noncash, lease liability
Noncash, lease liability
Interest rate adjustment amount, maximum
Debt Instrument, Interest Rate Adjustment Amount, Maximum
Debt Instrument, Interest Rate Adjustment Amount, Maximum
Investments in privately held entities that do not report fair value, book value
Equity Securities without Readily Determinable Fair Value, Amount
Leases
Lessor, Direct Financing Leases [Text Block]
Beginning balance (shares)
Ending balance (shares)
Common Stock, Shares, Outstanding
Investments in unconsolidated real estate joint ventures
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Non-core submarket
Non-core submarket [Member]
Non-core submarket
Operating Property with Ground Lease
Operating Property With Ground Lease [Member]
Operating Property With Ground Lease
99 Coolidge Avenue
99 Coolidge Avenue [Member]
99 Coolidge Avenue
Property, Plant and Equipment, Type [Axis]
Long-Lived Tangible Asset [Axis]
Name of Property [Domain]
Name of Property [Domain]
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Geographical [Domain]
Geographical [Domain]
2027
Lessee, Operating Lease, Liability, to be Paid, Year Four
Income Statement [Abstract]
Income Statement [Abstract]
Additional Paid-In Capital
Additional Paid-in Capital [Member]
Document Fiscal Period Focus
Document Fiscal Period Focus
Earnings per share attributable to Alexandria Real Estate Equities, Inc.'s common stockholders - basic and diluted:
Earnings Per Share, Basic [Abstract]
Expected net proceeds from issuance of common stock
Expected net proceeds from issuance of common stock
Expected net proceeds from issuance of common stock
Weighted-average remaining liquidation term (in years)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period
Development Entitlements Acquired
Development Entitlements Acquired [Member]
Development Entitlements Acquired
Purchase Option Term Three
Purchase Option Term Three [Member]
Purchase Option Term Three
Property Type [Axis]
Property Type [Axis]
Represents whether a property is currently operating or under going construction (development or redevelopment).
Conditional asset retirement obligations
Asset Retirement Obligation
Denominator for diluted EPS – weighted-average shares of common stock outstanding
Weighted Average Number of Shares Outstanding, Diluted
Deferred rent liabilities
Deferred Rent Liability
Represents the amount of deferred rent liability as of the balance sheet date.
Alexandria Center for Science and Technology - Mission Bay
Alexandria Center for Science and Technology - Mission Bay [Member]
Alexandria Center for Science and Technology - Mission Bay
Total investments held at adjusted carrying value or fair value
Equity Securities, FV-NI
Investments in privately held entities that do not report NAV, annual downward price adjustment
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount
Buildings and building improvements
Building and Building Improvements [Member]
Number of properties subject to ground leases
Number of Properties Subject to Ground Leases
Deposits
Deposits Assets
751 Gateway Boulevard
751 Gateway Boulevard [Member]
751 Gateway Boulevard
Common stock
Common Stock, Value, Issued
ATM Common Stock Offering Program, Established December 2021
ATM Common Stock Offering Program, Established December 2021 [Member]
ATM Common Stock Offering Program, Established December 2021
Book value
Reported Value Measurement [Member]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
3.45% Unsecured Senior Notes Payable
3.45% unsecured senior notes payable due in 2025 [Member]
3.45% unsecured senior notes payable due in 2025 [Member]
Unsecured senior notes payable
Senior Notes [Member]
Other assets
Other Assets, Miscellaneous
1.875% Unsecured Senior Notes Payable
1.875% Unsecured Senior Notes Payable [Member]
1.875% Unsecured Senior Notes Payable
Schedule of assets and liabilities measured at fair value on a recurring basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Tenant receivables
Increase (Decrease) in Leasing Receivables
75/125 Binney Street
75/125 Binney Street [Member]
75/125 Binney Street [Member]
Land parcels subject to lease agreement that contains a purchase option
Land parcels subject to lease agreement that contains a purchase option [Member]
Land parcels subject to lease agreement that contains a purchase option [Member]
Shares of preferred stock authorized
Preferred Stock, Shares Authorized
Secured debt maturing on 3/10/25
Secured debt maturing on 3/10/25 [Member]
Secured debt maturing on 3/10/25
Variable Interest Entity
Variable Interest Entity [Line Items]
Cash, cash equivalents, and restricted cash as of the beginning of period
Cash, cash equivalents, and restricted cash as of the end of period
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents
Unrealized gains on foreign currency translation, net
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Net income attributable to noncontrolling interests
Net income attributable to noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Net income (loss) attributable to Alexandria Real Estate Equities, Inc.’s common stockholders
Net Income (Loss) Available to Common Stockholders, Basic
Shares of common stock issued and outstanding
Common Stock, Shares, Issued
Investment in unconsolidated real estate joint ventures
Equity Method Investments [Table Text Block]
Capitalized interest
Interest Costs Capitalized Adjustment
Investments accounted for under the equity method
Equity Method Investments
Future Development
Future development projects [Member]
Future development projects [Member]
9625 Towne Centre Drive
9625 Towne Centre Drive [Member]
9625 Towne Centre Drive [Member]
Accrued construction for current-period additions to real estate
Capital Expenditures Incurred but Not yet Paid
Operating Leases, Future Minimum Payments Receivable
Lessor, Operating Lease, Payments to be Received, Fiscal Year Maturity [Abstract]
Amendment Flag
Amendment Flag
500 Forbes Boulevard
500 Forbes Boulevard [Member]
500 Forbes Boulevard [Member]
Right-of-use asset
Noncash, right-of-use asset
Noncash, right-of-use asset
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Gross operating lease costs
Operating Lease, Cost
Investment Type [Axis]
Investment Type [Axis]
Investments
Investment, Policy [Policy Text Block]
Total other comprehensive income
Other Comprehensive Income (Loss), Net of Tax
Fixed SOFR floor rate
Debt Instrument, Basis Spread On Variable Rate, Floor
Debt Instrument, Basis Spread On Variable Rate, Floor
Borrowings from unsecured senior line of credit
Proceeds from Long-Term Lines of Credit
Comprehensive income (loss) attributable to Alexandria Real Estate Equities, Inc.’s stockholders
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Real estate assets acquisitions
Real estate assets acquisitions [Table Text Block]
Real estate assets acquisitions [Table Text Block]
Entity Current Reporting Status
Entity Current Reporting Status
Impairment of Real Estate
Impairment of Real Estate
2023
Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Remainder of Fiscal Year
Percentage of Total
Debt Instrument, Percentage Of Outstanding Balance
Represents the outstanding balance of debt as a percentage of aggregate debt outstanding.
Future principal payments due on secured and unsecured debt
Long-Term Debt, Fiscal Year Maturity [Abstract]
Rental operations
Direct Costs of Leased and Rented Property or Equipment
Proceeds from issuance of unsecured senior notes payable
Proceeds from Issuance of Senior Long-Term Debt
2023
Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year
Total issuance of unsecured senior notes
Total issuance of unsecured senior notes
Total issuance of unsecured senior notes
Revenues
Revenue Recognition, Leases [Policy Text Block]
Counterparty Name [Axis]
Counterparty Name [Axis]
Consolidated and unconsolidated real estate joint venture properties
Consolidated And Unconsolidated Real Estate Joint Venture Properties [Table Text Block]
Consolidated And Unconsolidated Real Estate Joint Venture Properties [Table Text Block]
Unamortized (Deferred Financing Cost), (Discount)/ Premium
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Percent of taxable income, generally distributed as dividend
Percent of Taxable Income, Generally Distributed as Dividend
The entity generally distributes this percentage or more of its taxable income.
Purchase Option Term Two
Purchase Option Term Two [Member]
Purchase Option Term Two
Unsecured senior line of credit
$2.2 billion unsecured senior line of credit [Member]
$2.2 billion unsecured senior line of credit
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
Other unconsolidated real estate joint ventures
Other unconsolidated real estate joint ventures [Member]
Other unconsolidated real estate joint ventures [Member]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Rental properties
Rental Properties
Furniture, fixtures, and equipment
Property, Plant and Equipment, Net
Effect of foreign exchange rate changes on cash and cash equivalents
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations
Limited partnership liquidation, expected initial term (in years)
Limited Partnership Liquidation, Expected Initial Term (In Years)
Limited Partnership Liquidation, Expected Initial Term (In Years)
Additions to real estate
Payments to Develop Real Estate Assets
Operating lease costs - cash rents
Operating Lease, Payments
1201 and 1208 Eastlake Avenue East and 199 East Blaine Street
1201 and 1208 Eastlake Avenue East and 199 East Blaine Street [Member]
1201 and 1208 Eastlake Avenue East and 199 East Blaine Street
5.15% Unsecured Senior Notes Payable
5.15% Unsecured Senior Notes Payable [Member]
5.15% Unsecured Senior Notes Payable
3.95% Unsecured Senior Notes Payable Due in 2027
3.95% Unsecured Senior Notes Payable [Member]
3.95% Unsecured Senior Notes Payable [Member]
Debt Balance at 100%
Total Consolidated
Long-Term Debt
Cost method investment ownership percentage
Cost Method Investment Ownership Percentage
The percentage of ownership of common stock, less than ten percent in the investee accounted for under the cost method of accounting.
Shares of common stock authorized
Common Stock, Shares Authorized
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Maximum
Maximum [Member]
Consolidation
Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block]
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Schedule of Real Estate Properties
Schedule of Real Estate Properties [Table Text Block]
Net income attributable to unvested restricted stock awards
Net income attributable to unvested restricted stock awards
Participating Securities, Distributed and Undistributed Earnings (Loss), Diluted
Summary of unconsolidated real estate joint ventures loans
Summary of secured construction loans [Table Text Block]
Summary of secured construction loans [Table Text Block]
Restricted cash
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Investment loss
Investment loss
Equity Securities, FV-NI, Gain (Loss)
Real Estate Investments, Net
Real Estate Investments, Net
Maturity Date
Maturity Date
Debt Instrument, Maturity Date
Entity Small Business
Entity Small Business
Measurement Basis [Axis]
Measurement Basis [Axis]
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Stockholders' equity
Stockholders' Equity Note Disclosure [Text Block]
Income from rentals
Revenues [Abstract]
Dividends declared on common stock (per share)
Common Stock, Dividends, Per Share, Declared
Distributions to and redemption of noncontrolling interests
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Direct Financing and Sales-Type Leases - Schedule of Future Minimum Payment Receivable
Sales-type and Direct Financing Leases, Lease Receivable, Maturity [Table Text Block]
Number of equity method investments
Number Of Equity Method Investments
Number Of Equity Method Investments
Limited partnership maximum expiration terms
Limited Partnership Maximum Expiration Terms
Limited Partnership Maximum Expiration Terms
Amortization of debt discounts (premiums)
Amortization of Debt Discount (Premium)
Distributions to noncontrolling interests
Temporary Equity, Decrease from Distributions to Noncontrolling Interest
Temporary Equity, Decrease from Distributions to Noncontrolling Interest
Property, Plant and Equipment, Type [Domain]
Long-Lived Tangible Asset [Domain]
Number of real estate properties
Number of Real Estate Properties
800 Mercer Street
800 Mercer Street [Member]
800 Mercer Street
Title of 12(b) Security
Title of 12(b) Security
Reclassification of distributions in excess of earnings
Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings
Property Type [Domain]
Property Type [Domain]
[Domain] for Represents whether a property is currently operating or under going construction (development or redevelopment).
Gross investment in direct financing lease
Total
Sales-Type and Direct Financing Leases, Lease Receivable, Payments to be Received
Sales of and distributions from non-real estate investments
Proceeds from Sale, Maturity and Collection of Investments
Deferred rent
Deferred Rent Receivables, Net
Secured notes payable, fair value
Notes Payable, Fair Value Disclosure
Lessee option to purchase underlying asset, period after rent commencement
Lessor, Direct Financing Lease, Lessee Option to Purchase Underlying Asset, Period After Rent Commencement
Lessor, Direct Financing Lease, Lessee Option to Purchase Underlying Asset, Period After Rent Commencement
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Ownership percentage by noncontrolling owners
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners
Number of direct financing leases
Number Of Direct Financing Leases
Number Of Direct Financing Leases
Distributions of earnings from unconsolidated real estate joint ventures
Proceeds from Equity Method Investment, Distribution
Total expenses
Costs and Expenses
Other income
Product and Service, Other [Member]
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Debt Instrument
Debt Instrument [Line Items]
Leases summary
Leases Summary [Policy Text Block]
Leases Summary [Policy Text Block]
Class of Stock
Class of Stock [Line Items]
Acquired in-place leases
Finite-Lived Intangible Asset, Acquired-in-Place Leases
Issuances pursuant to stock plan (in shares)
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Operating lease liability
Operating Lease, Liability
Purchases of real estate
Payments to acquire real estate
Payments to Acquire Real Estate
Land (related to rental properties)
Land
Operating Lease
Lessor, Operating Lease, Description [Abstract]
Equity Method Investment, Nonconsolidated Investee [Domain]
Equity Method Investment, Nonconsolidated Investee [Domain]
Total other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Nonredeemable Noncontrolling Interest
Other Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Nonredeemable Noncontrolling Interest
Noncontrolling Interest [Table]
Noncontrolling Interest [Table]
Accrued construction
Accrued Construction
Accrued Construction
Total
Lessor, Operating Lease, Payments to be Received
Liabilities, Noncontrolling Interests, and Equity
Liabilities and Equity [Abstract]
Fair Value
Estimate of Fair Value Measurement [Member]
Issuance of noncontrolling interest to joint venture partner
Issuance of noncontrolling interest to joint venture partner
Issuance of noncontrolling interest to joint venture partner
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Property, plant, and equipment
Real Estate - Corporate Operations
Real Estate - Corporate Operations
Investments in privately held entities that do not report NAV, cumulative upward price adjustment
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount
Direct financing lease, allowance for credit loss
Direct Financing Lease, Net Investment in Lease, Allowance for Credit Loss
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Annual adjustments recognized on investments in privately held entities that do not report NAV
Annual adjustments recognized on investments in privately held entities that do not report NAV
Annual adjustments recognized on investments in privately held entities that do not report NAV
Debt instrument, borrowing capacity
Debt instrument, borrowing capacity
Debt instrument, borrowing capacity
Other assets
Increase (Decrease) in Other Operating Assets
Investment at fair value, cost
Equity Securities, FV-NI, Cost
2026
Long-Term Debt, Maturity, Year Four
Organization and basis of presentation
Nature of Operations [Text Block]
Lessee option to purchase underlying asset, option exercise period
Lessor, Direct Financing Lease, Lessee Option to Purchase Underlying Asset, Option Exercise Period
Lessor, Direct Financing Lease, Lessee Option to Purchase Underlying Asset, Option Exercise Period
Entity Filer Category
Entity Filer Category
Denominator for basic EPS – weighted-average shares of common stock outstanding
Weighted Average Number of Shares Outstanding, Basic
Proceeds from issuance of common stock
Proceeds from Issuance of Common Stock
Alexandria Real Estate Equities, Inc.’s stockholders’ equity:
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Restricted Cash and Cash Equivalents [Axis]
Restricted Cash and Cash Equivalents [Axis]
Operating
Operating properties [Member]
Operating properties [Member]
Consolidated VIE's balance sheet information
Schedule of Variable Interest Entities [Table Text Block]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Unearned rent and tenant security deposits
Prepaid Rent and Tenant Security Deposits
Carrying value as of the balance sheet date of obligations pertaining to prepaid rent and tenant security deposits.
2027
Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year Four
Equity Method Investment, Ownership Percentage
Equity Method Investment, Ownership Percentage
Secured Notes Payable Maturing on 7/1/36
Secured Notes Payable Maturing July 1, 2036 [Member]
Secured Notes Payable Maturing July 1, 2036 [Member]
Commitments and contingencies
Commitments and Contingencies
Security Exchange Name
Security Exchange Name
Lessee option to purchase underlying asset, period after rent commencement
Lessor, Operating Lease, Lessee Option to Purchase Underlying Asset, Period After Rent Commencement
Lessor, Operating Lease, Lessee Option to Purchase Underlying Asset, Period After Rent Commencement
Secured debt maturing on 11/10/26
Secured debt maturing on 11/10/26 [Member]
Secured debt maturing on 11/10/26
Tenant receivables
Accounts Receivable, after Allowance for Credit Loss
Assets and liabilities measured at fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Property, plant and equipment depreciated on a straight-line basis using an estimated life
Property, Plant and Equipment [Line Items]
Summary of secured and unsecured debt
Schedule of Debt [Table Text Block]
Short-term Debt, Type [Domain]
Short-Term Debt, Type [Domain]
Common stock available for future issuance (in shares)
Common Stock, Capital Shares Reserved for Future Issuance
Real Estate Property, Ownership Interest Sold by Noncontrolling Interests
Real Estate Property, Ownership Interest Sold by Noncontrolling Interests
Real Estate Property, Ownership Interest Sold by Noncontrolling Interests
Cover [Abstract]
Cover [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-Term Debt Instruments [Table]
Leases, lessee accounting
Lessee, Leases [Policy Text Block]
Significant unobservable input (Level 3)
Fair Value, Inputs, Level 3 [Member]
San Francisco Bay Area
San Francisco Bay Area [Member]
San Francisco Bay Area
Percentage of fixed rate/hedged total debt
Fixed Interest Rate Debt as Percentage of Total Outstanding Balance
Represents the outstanding balance of fixed interest rate debt as a percentage of aggregate debt outstanding.
Other Greater Boston joint venture
Other - Greater Boston [Member]
Other - Greater Boston
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Less: accumulated depreciation
Real Estate Investment Property, Accumulated Depreciation
Contract with customer, asset, allowance for credit loss
Contract with Customer, Asset, Allowance for Credit Loss
Employee share-based payments
Share-Based Payment Arrangement [Text Block]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other assets
Total
Other Assets
Schedule of assets and liabilities measure at fair value on a nonrecurring basis
Fair Value Measurements, Nonrecurring [Table Text Block]
2025
Lessor, Operating Lease, Payment to be Received, Year Two
Investments [Domain]
Investments [Domain]
Noncontrolling Interests
Noncontrolling Interest [Member]
3.00% Unsecured Senior Notes Payable
3.00% Unsecured Senior Notes Payable [Member]
3.00% Unsecured Senior Notes Payable
Remaining lease term for operating lease obligations
Operating Lease Obligation Remaining Lease Term
Represents the term of operating lease obligation, excluding possible extensions.
Net investment in direct financing lease
Net Investment in Lease, before Allowance for Credit Loss
Interest incurred
Interest Costs Incurred
China Properties
China Properties [Member]
Represents information pertaining to properties owned by the entity that are located in China.
Taxes paid related to net settlement of equity awards
Payment, Tax Withholding, Share-Based Payment Arrangement
Total liabilities, noncontrolling interests, and equity
Total liabilities, noncontrolling interests, and equity
Liabilities and Equity
Fair Value, Investments, Privately Held Entities that Calculate NAV, Unfunded Commitments
Fair Value, Investments, Privately Held Entities that Calculate NAV, Unfunded Commitments
Fair Value, Investments, Privately Held Entities that Calculate NAV, Unfunded Commitments
Debt Instrument, Term
Debt Instrument, Term
Cumulative unrealized gains on investments
Cumulative unrealized gains on investments
Cumulative unrealized gains on investments
Income from rentals
Income from rentals [Abstract]
Income from rentals [Abstract]
Amortization of loan fees
Amortization of Debt Issuance Costs
Long-term Debt, Type [Axis]
Long-Term Debt, Type [Axis]
Repayments of borrowings from unsecured senior line of credit
Repayments of Long-Term Lines of Credit
1450 Research Boulevard
1450 Research Boulevard [Member]
1450 Research Boulevard
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Significant other observable inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Equity Method Investments
Equity Method Investments [Member]
Additions to non-real estate investments
Payments to Acquire Investments
Current Fiscal Year End Date
Current Fiscal Year End Date
Effect of discounting
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Lessee
Lessee Disclosure [Abstract]
Numerator for basic and diluted EPS – net income (loss) attributable to Alexandria Real Estate Equities, Inc.’s common stockholders
Net Income (Loss) Available to Common Stockholders, Diluted
Earnings (loss) per share - diluted (USD per share)
Earnings Per Share, Diluted
Development and redevelopment projects
Development in Process
Noncontrolling Interest, Ownership Percentage by Parent
Noncontrolling Interest, Ownership Percentage by Parent
Schedule of Other Assets
Schedule of Other Assets [Table Text Block]
Issuance pursuant to stock plan
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
Minimum percentage of taxable income to be distributed
Minimum Percentage of Taxable Income to be Distributed
Represents the percentage of annual taxable income which must be distributed to stockholders in order to comply with requirements of the federal tax law for treatment as a real estate investment trust.
Investments in privately held entities that do not report NAV, annual upward price adjustment
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount
Contributions from and sales of noncontrolling interests
Temporary equity, contribution from noncontrolling interests
Temporary equity, contribution from noncontrolling interests
4.90% Unsecured Senior Notes Payable
4.90% Unsecured Senior Notes Payable [Member]
4.90% Unsecured Senior Notes Payable
Deferred leasing costs
Increase (Decrease) in Deferred Leasing Fees
2025
Lessee, Operating Lease, Liability, to be Paid, Year Two
Income from rentals
Income from rentals [Table Text Block]
[Table Text Block] for Income from rentals [Table]
Net income
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest
Investments
Equity Securities, FV-NI and without Readily Determinable Fair Value
Thereafter
Lessor, Operating Lease, Payment to be Received, after Year Five
Transfers in Fair Value Hierarchy
Transfers In Fair Value Hierarchy
Transfers in Fair Value Hierarchy
Operating Lease - Schedule of Future Minimum Lease Receivable
Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block]
Assets classified as held for sale
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Weighted-average yield to maturity, commercial paper
Weighted-average yield to maturity, commercial paper
Weighted-average yield to maturity, commercial paper
Annual facility fee (as a percent)
Line of Credit Facility, Commitment Fee Percentage
Cumulative Effect, Period of Adoption, Adjustment
Cumulative Effect, Period of Adoption, Adjustment [Member]
Capitalized lease costs
Capitalized Lease Costs
Capitalized Lease Costs
Unrealized losses
Equity Securities, FV-NI, Unrealized Gain (Loss)
Operating Lease - Schedule of Future Minimum Lease Payable
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Entity Address, Address Line One
Entity Address, Address Line One
Forward Contract Indexed to Issuer's Equity, Type [Domain]
Forward Contract Indexed to Issuer's Equity, Type [Domain]
Revenues subject to other accounting guidance
Revenues subject to other accounting guidance [Member]
Revenues subject to other accounting guidance [Member]
Product and Service [Axis]
Product and Service [Axis]
Alexandria Center® for Life Science – Millbrae
Alexandria Center for Life Science – Millbrae [Member]
Alexandria Center for Life Science – Millbrae
Investments in privately held entities that do not report NAV, cumulative impairment loss
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Investments in unconsolidated real estate joint ventures
Payments to Acquire Real Estate and Real Estate Joint Ventures
Interest
Interest
Interest Expense
Income from rentals
Income from rentals [Member]
Income from rentals [Member]
Cash and Cash Equivalents [Domain]
Cash and Cash Equivalents [Domain]
2024
Sales-Type and Direct Financing Leases, Lease Receivable, to be Received, Year One
Subsequent Event [Table]
Subsequent Event [Table]
Total liabilities
Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Liabilities
Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Liabilities
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Entity Tax Identification Number
Entity Tax Identification Number
Interest rate adjustment amount, decrease
Debt Instrument, Basis Spread on Variable Rate, Period Increase (Decrease)
Debt Instrument, Basis Spread on Variable Rate, Period Increase (Decrease)
Schedule of Investments [Table]
Schedule of Investments [Table]
Maximum expected period of sale of property (in years)
Maximum Expected Period of Sale of Property
Represents the maximum period within which sale of property is expected to be completed.
Accounts Payable and Accrued Liabilities [Abstract]
Investment in privately held entities that do not report NAV, cumulative price adjustments
Equity Securities without Readily Determinable Fair Value, Price Adjustment, Cumulative Amount
Equity Securities without Readily Determinable Fair Value, Price Adjustment, Cumulative Amount
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Taxes paid related to net settlement of equity awards (in shares)
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation
Net Income
Temporary Equity, Net Income
Schedule of Interest Incurred
Schedule of Interest Incurred [Table Text Block]
Tabular reconciliation of interest expense incurred for continuing and discontinued operations.
Asia
Asia [Member]
Net increase in cash, cash equivalents, and restricted cash
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Direct financing lease, net investment in lease, before allowance for credit loss
Direct Financing Lease, Net Investment in Lease, before Allowance for Credit Loss
Cash, cash equivalents, and restricted cash
Cash and Cash Equivalents Disclosure [Text Block]
Deferred rent
Straight Line Rent
Long-term debt, percentage bearing variable interest, amount, net
Long-term Debt, Percentage Bearing Variable Interest, Amount, Net
Long-term Debt, Percentage Bearing Variable Interest, Amount, Net
Commercial Paper
Commercial Paper [Member]
Entity Central Index Key
Entity Central Index Key
Real Estate [Abstract]
Real Estate [Abstract]
Repayments of borrowings from secured notes payable
Repayments of Secured Debt
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Other comprehensive income
Other Comprehensive Income (Loss), before Tax [Abstract]
Name of Property [Axis]
Name of Property [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Taxes related to net settlement of equity awards
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation
Total accumulated other comprehensive income
Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Accumulated Other Comprehensive Income (Loss)
Disposal Group, Including Assets Held for Sale Not Qualifying as Discontinued Operations, Accumulated Other Comprehensive Income (Loss)
3.55% Unsecured Senior Notes Payable
3.55% Unsecured Senior Notes Payable [Member]
3.55% Unsecured Senior Notes Payable
100 and 225 Binney Street and 300 Third Street
100 and 225 Binney Street and 300 Third Street [Member]
100 and 225 Binney Street and 300 Third Street
Type of Adoption [Domain]
Accounting Standards Update [Domain]
City Area Code
City Area Code
General and administrative
General and Administrative Expense
Assets
Assets [Abstract]
Long-term Debt, Type [Domain]
Long-Term Debt, Type [Domain]
Real Estate Property, Ownership Interest Sold
Real Estate Property, Ownership Interest Sold
Real Estate Property, Ownership Interest Sold
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Lessor
Lessor Disclosure [Abstract]
Purchase Option Term One
Purchase Option Term One [Member]
Purchase Option Term One
Financing Activities
Net Cash Provided by (Used in) Financing Activities [Abstract]
Less: unearned income on direct financing lease
Direct Financing Lease, Unearned Income
Direct Financing Lease, Unearned Income
2.00% Unsecured Senior Notes Payable
2.00% Unsecured Senior Notes Payable [Member]
2.00% Unsecured Senior Notes Payable
4.30% Unsecured Senior Notes Payable
4.30% Unsecured Senior Notes Payable [Member]
4.30% Unsecured Senior Notes Payable [Member]
Asset Class [Axis]
Asset Class [Axis]
Alexandria
Alexandria [Member]
Alexandria
2023
Long-Term Debt, Maturity, Year One
Stock compensation expense
Share-Based Payment Arrangement, Noncash Expense
Weighted-average remaining maturity term, commercial paper
Weighted-average remaining maturity term, commercial paper
Weighted-average remaining maturity term, commercial paper
Variable Rate [Axis]
Variable Rate [Axis]
Leases
Lessor, Operating Leases [Text Block]
Consolidated and unconsolidated real estate joint ventures
Equity Method Investments and Joint Ventures Disclosure [Text Block]
Equity in earnings of unconsolidated real estate joint ventures
Equity in earnings of unconsolidated real estate joint ventures
Income from equity method investments
Income (Loss) from Equity Method Investments
North America
North America [Member]
Proceeds from issuances under commercial paper program
Proceeds from Issuance of Commercial Paper
Distributions from equity method investments
Joint Venture Distribution [Policy Text Block]
Joint Venture Distribution [Policy Text Block]
Market capitalization
Market Capitalization
Market Capitalization
Reconciliation of the numerators and denominators of the basic and diluted earnings per share computations
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Forward equity sales agreements
Forward equity sales agreements [Policy Text Block]
Forward equity sales agreements [Policy Text Block]
Operating With Future Development/Redevelopment
Operating with future development and redevelopment [Member]
Operating with future development and redevelopment [Member]
Direct Financing and Sales-Type Lease
Net Investment in Lease, before Allowance for Credit Loss [Abstract]
Secured debt maturing on 12/10/26
Secured debt maturing on 12/10/26 [Member]
Secured debt maturing on 12/10/26