CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY AND REDEEMABLE NONCONTROLLING INTERESTS (UNAUDITED) - USD ($) $ in Thousands	Total	Total Lazard Stockholders’ Equity	Common Stock	Additional Paid-In- Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss), Net of Tax	Common Stock Held By Subsidiaries	Noncontrolling Interests	Redeemable Noncontrolling Interests
Balance at the beginning (in shares) at Dec. 31, 2023			112,766,091				25,340,287
Balance at the beginning at Dec. 31, 2023	$ 482,187	$ 423,759	$ 1,128	$ 247,204	$ 1,402,636	$ (289,950)	$ (937,259)	$ 58,428
Comprehensive income (loss):
Net income (loss)	37,607	35,755			35,755			1,852
Other comprehensive income (loss) - net of tax	(14,045)	(14,045)				(14,045)
Amortization of share-based incentive compensation	70,198	69,773		69,773				425
Dividend equivalents	(5,527)	(406)		9,441	(9,847)			(5,121)
Common stock dividends	$ (43,715)	(43,715)			(43,715)
Purchase of common stock (in shares)	564,692						564,692
Purchase of common stock	$ (22,005)	(22,005)					$ (22,005)
Delivery of common stock in connection with share-based incentive compensation and related tax expense (benefit) (in shares)							(3,656,974)
Delivery of common stock in connection with share-based incentive compensation and related tax expense (benefit)	(56,396)	(57,637)		(193,080)			$ 135,443	1,241
Business acquisitions and related equity transactions: Common stock issuable	1,235	1,235		1,235
Distributions to noncontrolling interests, net	(1,008)							(1,008)
Balance at the end (in shares) at Mar. 31, 2024			112,766,091				22,248,005
Balance at the end at Mar. 31, 2024	448,531	392,714	$ 1,128	134,573	1,384,829	(303,995)	$ (823,821)	55,817
Balance at the beginning at Dec. 31, 2023									$ 87,675
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income									2,617
LFI Consolidated Funds									(1,817)
Balance at the end at Mar. 31, 2024									88,475
Balance at the beginning (in shares) at Dec. 31, 2024			112,766,091				22,467,315
Balance at the beginning at Dec. 31, 2024	685,154	636,240	$ 1,128	327,810	1,472,113	(326,742)	$ (838,069)	48,914
Comprehensive income (loss):
Net income (loss)	63,181	60,375			60,375			2,806
Other comprehensive income (loss) - net of tax	20,000	19,976				19,976		24
Amortization of share-based incentive compensation	77,168	74,950		74,950				2,218
Dividend equivalents	(7,466)	(455)		9,421	(9,876)			(7,011)
Common stock dividends	$ (44,950)	(44,950)			(44,950)
Purchase of common stock (in shares)	773,955						773,955
Purchase of common stock	$ (36,165)	(36,165)					$ (36,165)
Delivery of common stock in connection with share-based incentive compensation and related tax expense (benefit) (in shares)							(4,664,538)
Delivery of common stock in connection with share-based incentive compensation and related tax expense (benefit)	(104,435)	(102,913)		(278,381)			$ 175,468	(1,522)
Business acquisitions and related equity transactions: Common stock issuable	1,235	1,235		1,235
Contributions from noncontrolling interests, net	96							96
Other (in shares)							41,969
Other	(5,265)	(5,265)		(3,338)			$ (1,927)
Balance at the end (in shares) at Mar. 31, 2025			112,766,091				18,618,701
Balance at the end at Mar. 31, 2025	$ 648,553	$ 603,028	$ 1,128	$ 131,697	$ 1,477,662	$ (306,766)	$ (700,693)	$ 45,525
Balance at the beginning at Dec. 31, 2024									79,629
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income									(1,192)
LFI Consolidated Funds									5,374
Balance at the end at Mar. 31, 2025									$ 83,811