Noncontrolling Interests - Noncontrolling Interest Summary (Parenthetical) (Detail) - shares shares in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Long Term Incentive Plan Units [Member]
Minority Interest [Line Items]
Vested LTIP Units	6.1	5.7
Class A Common [Member]
Minority Interest [Line Items]
Outstanding limited partnership units, exchanged	7.5	8.2
Units outstanding	7.9	8.6
Common Unit [Member]
Minority Interest [Line Items]
Outstanding limited partnership units, exchanged	8.9	9.1
Other Consolidated Entities [Member]
Minority Interest [Line Items]
Outstanding limited partnership units, exchanged	0.3	0.3
Other Consolidated Entities [Member] \| Common Stock [Member]
Minority Interest [Line Items]
Outstanding limited partnership units	2.0	2.0

Outstanding common limited partnership units converted into cash or common shares.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options vested LTIP units.

+ References

No definition available.

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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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- Definition

The number of each class of partnership units outstanding at the balance sheet date. Units represent shares of ownership of the general, limited, and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB TOPIC 4.F)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-5

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- Definition

The number of units converted into shares of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-5

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