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, 2022			112,766,091				26,814,213
Balance at the beginning at Dec. 31, 2022	$ 675,399	$ 556,463	$ 1,128	$ 167,890	$ 1,676,713	$ (295,854)	$ (993,414)	$ 118,936	$ 583,471
Comprehensive income (loss):
Net income	(21,396)	(22,172)			(22,172)			776	6,197
Other comprehensive income (loss) - net of tax	12,898	12,897				12,897		1
Amortization of share-based incentive compensation	70,534	68,511		68,511				2,023
Dividend equivalents	(5,087)	(248)		7,119	(7,367)			(4,839)
Common stock dividends ($0.50 per share)	$ (42,524)	(42,524)			(42,524)
Purchase of common stock (in shares)	2,692,161						2,692,161
Purchase of common stock	$ (98,925)	(98,925)					$ (98,925)
Delivery of common stock in connection with share-based incentive compensation and related tax benefit (in shares)							(3,364,092)
Delivery of common stock in connection with share-based incentive compensation and related tax benefit	(45,557)	(51,221)		(176,320)			$ 125,099	5,664
Common stock issuable	1,775	1,775		1,775
Delivery of common stock (in shares)							(41,384)
Stock Issued During Period, Value, Acquisitions	0	0		(1,533)			$ 1,533
Distributions to noncontrolling interests, net	(1,992)	0						(1,992)
LFI Consolidated Funds	(74,164)	0						(74,164)	85,106
Noncontrolling Interest, Change in Redemption Value	(589)	(412)		(412)				(177)	589
Distribution to redeemable noncontrolling interests									(585,891)
Reversal to net loss of amounts previously charged to additional paid-in-capital and noncontrolling interests	17,929	13,195		13,195				4,734
Reversal of deferred offering cost liability	20,125	14,087		14,087				6,038
Stockholders' Equity, Other	(17)	0						(17)
Balance at the end (in shares) at Mar. 31, 2023			112,766,091				26,100,898
Balance at the end at Mar. 31, 2023	508,409	451,426	$ 1,128	94,312	1,604,650	(282,957)	$ (965,707)	56,983	89,472
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	87,675
Comprehensive income (loss):
Net income	37,607	35,755			35,755			1,852	2,617
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 ($0.50 per share)	$ (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 benefit (in shares)							(3,656,974)
Delivery of common stock in connection with share-based incentive compensation and related tax benefit	(56,396)	(57,637)		(193,080)			$ 135,443	1,241
Common stock issuable	1,235	1,235		1,235
Distributions to noncontrolling interests, net	(1,008)	0						(1,008)
LFI Consolidated Funds	0	0						0	(1,817)
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	$ 88,475