Real Estate and In-Place Lease Value - Additional Information (Details) $ in Millions	3 Months Ended
Mar. 31, 2023 USD ($) property	Mar. 31, 2022 USD ($)
Real Estate [Line Items]
Gain on sale of real estate, net	$ 19.2	$ 1.9
Net proceeds from sale of consolidated real estate	$ 111.9	$ 33.9
Leases, Acquired-in-Place
Real Estate [Line Items]
Acquired in-place lease estimated useful life (in years)	6 years 9 months 18 days
Urban Multifamily \| Western U.S.
Real Estate [Line Items]
Gain on sale of real estate, net	$ 19.2
Retail \| Mountain West
Real Estate [Line Items]
Number of real estate properties sold \| property	1
Office Building \| United Kingdom
Real Estate [Line Items]
Impairment of property	$ 6.2
Number of real estate properties \| property	1
Office Building \| Ireland
Real Estate [Line Items]
Impairment of property	$ 6.2
Building and Building Improvements \| Maximum
Real Estate [Line Items]
Buildings and building improvements estimated lives	40 years

Number of Real Estate Properties Sold

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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.

+ References

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Topic 230
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- Definition

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

+ References

No definition available.

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- Definition

Cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period.

+ References

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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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

No definition available.

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