DERIVATIVES - Net Gains (Losses) with Respect to Derivative Instruments Not Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Total	$ (30,735)	$ 16,137	$ (41,625)	$ (22,006)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other	Other	Other	Other
Forward foreign currency exchange rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total return swaps and other	$ (5,860)	$ (984)	$ (2,635)	$ (1,684)
LFI and other similar deferred compensation arrangements
Derivative Instruments, Gain (Loss) [Line Items]
Total return swaps and other	(16,732)	10,598	(24,904)	(15,530)
LGAC Warrants
Derivative Instruments, Gain (Loss) [Line Items]
Total return swaps and other	0	0	0	115
Total return swaps and other
Derivative Instruments, Gain (Loss) [Line Items]
Total return swaps and other	$ (8,143)	$ 6,523	$ (14,086)	$ (4,907)

Lazard Group LLC 10-Q