Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME	$ 122,792	$ 115,513	$ 335,418	$ 331,255
Currency translation adjustments:
Currency translation adjustments before reclassification	(54,439)	(25,861)	(134,129)	(40,102)
Adjustment for items reclassified to earnings	138	51	265	23,630
Employee benefit plans:
Actuarial gain (net of tax expense of $1,832 and $1,107 for the three months ended September 30, 2022 and 2021, respectively, and $4,436 and $1,496 for the nine months ended September 30, 2022 and 2021, respectively)	8,786	4,442	20,512	4,030
Adjustment for items reclassified to earnings (net of tax expense of $233 and $422 for the three months ended September 30, 2022 and 2021, respectively, and $748 and $1,286 for the nine months ended September 30, 2022 and 2021, respectively)	1,162	1,481	2,816	4,275
OTHER COMPREHENSIVE LOSS, NET OF TAX	(44,353)	(19,887)	(110,536)	(8,167)
COMPREHENSIVE INCOME	78,439	95,626	224,882	323,088
LESS - COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	16,995	8,303	20,264	13,567
COMPREHENSIVE INCOME ATTRIBUTABLE TO LAZARD LTD	$ 61,444	$ 87,323	$ 204,618	$ 309,521