CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ (120,376)	$ 91,651	$ (135,575)	$ 212,626
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Currency translation adjustments before reclassification	2,478	(61,700)	17,017	(79,690)
Adjustment for items reclassified to earnings	0	205	0	127
Employee benefit plans:
Actuarial gain (loss) (net of tax expense (benefit) of $(479) and $1,816 for the three months ended June 30, 2023 and 2022, respectively, and $(1,074) and $2,604 for the six months ended June 30, 2023 and 2022, respectively)	(2,585)	8,287	(5,386)	11,726
Adjustment for items reclassified to earnings (net of tax expense of $385 and $248 for the three months ended June 30, 2023 and 2022, respectively, and $761 and $515 for the six months ended June 30, 2023 and 2022, respectively)	1,176	805	2,336	1,654
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	1,069	(52,403)	13,967	(66,183)
COMPREHENSIVE INCOME (LOSS)	(119,307)	39,248	(121,608)	146,443
LESS - COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO NONCONTROLLING INTERESTS	3,635	(3,829)	10,609	3,269
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO LAZARD LTD	$ (122,942)	$ 43,077	$ (132,217)	$ 143,174