v3.26.1
S000030894 [Member] Average Annual Total Returns
 12 Months Ended 60 Months Ended 119 Months Ended 120 Months Ended 180 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
MSCI EM (Emerging Markets) Index (reflects no deduction for fees or expenses)          
Prospectus [Line Items]          
Average Annual Return, Percent 33.57% 4.20%   8.42% 3.82%
MSCI EM (Emerging Markets) IMI Growth Index (reflects no deduction for fees or expenses)          
Prospectus [Line Items]          
Average Annual Return, Percent 32.03% 2.36%   8.53% 4.58%
Retail Shares          
Prospectus [Line Items]          
Average Annual Return, Percent 29.77% 0.91%   6.58% 4.84%
Performance Inception Date         Dec. 31, 2010
Retail Shares | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent 29.39% 0.89%   6.61% 4.84%
Performance Inception Date         Dec. 31, 2010
Retail Shares | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent 18.18% 0.86%   5.46% 4.03%
Performance Inception Date         Dec. 31, 2010
Institutional Shares          
Prospectus [Line Items]          
Average Annual Return, Percent 30.14% 1.16%   6.86% 5.10%
Performance Inception Date         Dec. 31, 2010
R6 Shares          
Prospectus [Line Items]          
Average Annual Return, Percent [1] 30.12% 1.16% 5.10% 6.86%  
Performance Inception Date [1]     Jan. 29, 2016    
[1] Performance for the R6 Shares prior to January 29, 2016 is based on the performance of the Institutional Shares.