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CONSOLIDATED VIEs - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Investments	$ 623,711	$ 614,947
Investment, Type [Extensible Enumeration]	Lazard Fund Interests	Lazard Fund Interests
Lazard Group LLC
Variable Interest Entity [Line Items]
Investments	$ 33,350	$ 68,452

X

- Definition

Indicates type of investment. Includes, but is not limited to, common stock, preferred stock, convertible security, fixed income security, government security, option purchased, warrant, loan participation and assignment, commercial paper, bankers' acceptance, certificates of deposit, short-term security, repurchase agreement, and other investment company.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

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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.

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