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Organization (Details)	Dec. 31, 2022 ft² a property apartment	Dec. 31, 2021	Dec. 31, 2020
Office Building
Real Estate Properties [Line Items]
Number of real estate properties	4
Area of real estate property (in sq ft) | ft²	1,056,793
Apartment Building
Real Estate Properties [Line Items]
Number of real estate properties	14
Number of units in real estate property | apartment	2,328
Developed and Undeveloped Land
Real Estate Properties [Line Items]
Area of land (in acres) | a	1,858
Commercial Properties
Real Estate Properties [Line Items]
Number of real estate properties	3
ARL | Related party entities
Real Estate Properties [Line Items]
Ownership interest (as a percent)	90.00%	90.00%	90.00%
TCI
Real Estate Properties [Line Items]
Ownership interest (as a percent)	78.40%	78.40%	78.40%

X

- Definition

Area of land held.

+ References

No definition available.

+ Details

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X

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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X

- Definition

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

+ References

No definition available.

+ Details

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X

- Definition

The number of units in a real estate property owned as of the balance sheet date.

+ References

No definition available.

+ Details

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X

- 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.

+ Details

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X

- Details

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Namespace Prefix:
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X

- Details

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X

- Details

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X

- Details

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Balance Type:
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X

- Details

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X

- Details

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X

- Details

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