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Consolidated VIEs - Additional Information (Details) - USD ($) $ in Thousands		12 Months Ended
	Feb. 23, 2023	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2022
Variable Interest Entity [Line Items]
Investments		$ 701,964	$ 614,947
Investment, Type [Extensible Enumeration]		Lazard Fund Interests	Lazard Fund Interests
Redeemable noncontrolling interests		$ 87,675	$ 79,629
LGAC
Variable Interest Entity [Line Items]
Redeemable noncontrolling interests				$ 583,471
Assets held-in-trust, noncurrent	$ 585,891
LGAC | Non-cash Deferred Underwriting Fees
Variable Interest Entity [Line Items]
Deferred costs		20,125
LGAC | Other Revenue
Variable Interest Entity [Line Items]
Losses on dissolution		17,929
Lazard Group LLC
Variable Interest Entity [Line Items]
Investments		$ 113,174	$ 68,452

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