v3.26.1
Shareholder Report, Average Annual Return (Details)
 6 Months Ended 12 Months Ended 60 Months Ended 90 Months Ended 120 Months Ended
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2026
C000028469          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name Investor Shares        
Average Annual Return, Percent   44.44% 13.30%   10.39%
C000028468          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name Service Shares        
Average Annual Return, Percent   44.06% 13.02%   10.11%
C000113248          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name Investor Shares        
Average Annual Return, Percent   14.74% 5.36% 6.80%  
C000113249          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name Service Shares        
Average Annual Return, Percent   14.57% 5.20%   6.29%
C000028478          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name Service Shares        
Average Annual Return, Percent   18.84% 8.70%   8.05%
Lazard Index: MSCI Emerging Markets Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name MSCI Emerging Markets Index        
Average Annual Return, Percent   43.51% 7.20%   10.07%
Lazard Index: MSCI Emerging Markets Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name MSCI Emerging Markets Index        
Average Annual Return, Percent   43.51% 7.20%   10.07%
Lazard Index: MSCI World Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name MSCI World Index        
Average Annual Return, Percent   21.34% 11.47% 15.14%  
Lazard Index: MSCI World Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name MSCI World Index        
Average Annual Return, Percent   21.34% 11.47%   13.14%
Lazard Index: MSCI EAFE Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name MSCI EAFE Index        
Average Annual Return, Percent   20.23% 9.05%   9.66%
Lazard Index: GDMA Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name GDMA Index        
Average Annual Return, Percent   10.65% 4.93% 7.87%  
Lazard Index: GDMA Index          
Average Annual Return [Line Items]          
Line Graph and Table Measure Name GDMA Index        
Average Annual Return, Percent   10.65% 4.93%   6.79%