v3.25.4
Shareholder Report, Line Graph (Details) - USD ($)
 12 Months Ended 24 Months Ended 36 Months Ended 48 Months Ended 60 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended
Dec. 31, 2015
Dec. 31, 2025
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2025
C000099168 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value $ 10,000   $ 10,103.28 $ 12,646.43 $ 10,960.9 $ 13,365.77 $ 14,444.21 $ 16,080.63 $ 13,817.97 $ 16,352.04 $ 16,962.56 $ 22,344
C000244427 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class G Shares                    
Accumulated Value 10,000   10,099.37 12,648.66 10,957.53 13,346 14,417.15 16,042.85 13,767.88 16,290.07 16,901.12 22,269.48
C000201956 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor P Shares (with sales charge)                    
Accumulated Value 9,475   9,545 11,925 10,306 12,523 13,485 14,975 12,825 15,123 15,646 20,543
C000008447 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares                    
Accumulated Value 10,000   10,078 12,582 10,874 13,215 14,230 15,796 13,528 15,966 16,506 21,687
C000008448 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   10,099.37 12,648.66 10,957.53 13,346 14,417.15 16,042.85 13,767.88 16,290.68 16,890.43 22,235.16
C000008452 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   12,132.97 13,898.48 12,377.37 15,533.68 18,635.83 21,380.72 17,021.54 19,897.9 22,170.57 25,003.17
C000008451 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares                    
Accumulated Value 10,000   12,103.7 13,839.87 12,291.16 15,388.67 18,414.68 21,063.44 16,730.81 19,508.29 21,683.31 24,394.05
C000201957 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor P Shares (with sales charge)                    
Accumulated Value 9,472   11,467.65 13,103.82 11,637.67 14,576.23 17,440.45 19,954.82 15,849.9 18,483.52 20,542.06 23,103.23
C000099169 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000   12,139.61 13,922.51 12,400.17 15,577.06 18,692.94 21,456.61 17,095.51 19,992.78 22,286.05 25,144.32
MSCI EAFE Index Net [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI EAFE Index (Net)                    
Accumulated Value 10,000   10,100 12,628 10,887 13,284 14,322 15,935 13,632 16,118 16,735 21,959
Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 3000® Index                    
Accumulated Value 10,000   11,274 13,656 12,940 16,954 20,495 25,754 20,808 26,209 32,448 38,012
Russell 2000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 2000® Index                    
Accumulated Value $ 10,000   $ 12,131 $ 13,908 $ 12,376 $ 15,535 $ 18,636 $ 21,397 $ 17,024 $ 19,906 $ 22,203 $ 25,047