v3.25.2
INVESTMENTS - Investments and Securities Sold, not yet Purchased (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Investments $ 637,473 $ 614,947
Investments, at fair value 618,987 598,048
Equity method investments 18,486 16,899
Debt    
Schedule of Investments [Line Items]    
Investments 207 0
Equity    
Schedule of Investments [Line Items]    
Investments 56,315 58,623
Total funds    
Schedule of Investments [Line Items]    
Investments 562,465 539,425
Total funds | Lazard Fund Interests    
Schedule of Investments [Line Items]    
Investments 285,183 374,001
Alternative investments    
Schedule of Investments [Line Items]    
Investments 52,872 59,230
Alternative investments | Lazard Fund Interests    
Schedule of Investments [Line Items]    
Investments 21,805 23,865
Debt    
Schedule of Investments [Line Items]    
Investments 111,201 147,173
Debt | Lazard Fund Interests    
Schedule of Investments [Line Items]    
Investments 93,022 126,407
Equity    
Schedule of Investments [Line Items]    
Investments 348,302 289,610
Equity | Lazard Fund Interests    
Schedule of Investments [Line Items]    
Investments 170,356 223,729
Private equity    
Schedule of Investments [Line Items]    
Investments $ 50,090 $ 43,412