Commitments, Contingencies and Guarantees - Narrative (Details) ft² in Thousands, $ in Thousands	6 Months Ended
Jun. 30, 2022 USD ($) ft² building property apartment	Dec. 31, 2021 USD ($)
Other Commitments [Line Items]
Number of buildings containing asbestos \| building	33
Principal balance	$ 5,221,318	$ 5,046,725
Partnership X
Other Commitments [Line Items]
Maximum future payments under swap agreement	4,200
Partnership X \| Floating rate term loan
Other Commitments [Line Items]
Principal balance	$ 115,000
Maturity date	Sep. 14, 2028
Loan agreement LIBOR floor	0.00%
Number of properties to secure loan \| property	2
Partnership X \| Floating rate term loan \| Interest Rate Swap
Other Commitments [Line Items]
Fixed interest rate	2.19%
Swap Maturity Date	Oct. 01, 2026
Partnership X \| Floating rate term loan \| LIBOR
Other Commitments [Line Items]
Debt instrument, basis spread on variable rate	1.35%
Repositionings, Capital Expenditure Projects, and Tenant Improvements
Other Commitments [Line Items]
Aggregate remaining contractual commitment	$ 31,900
Development Projects
Other Commitments [Line Items]
Aggregate remaining contractual commitment	$ 53,800
Development Projects \| Hawaii
Other Commitments [Line Items]
Number of apartments under construction \| apartment	493
Retail square footage (sq ft) \| ft²	493

Debt Instrument, Collateral, Number Of Properties

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- Definition

Debt Instrument, LIBOR Floor Interest Rate

+ References

No definition available.

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- Definition

Number Of Apartments Under Construction

+ References

No definition available.

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- Definition

Number Of Properties Containing Asbestos

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No definition available.

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- Definition

Area of a real estate property.

+ References

No definition available.

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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

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

Fixed interest rate related to the interest rate derivative.

+ References

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Date the derivative contract matures, in YYYY-MM-DD format.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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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.

+ References

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