v3.25.2
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
May 31, 2015
May 31, 2016
May 31, 2017
May 31, 2018
May 31, 2019
May 31, 2020
May 31, 2021
May 31, 2022
May 31, 2023
May 31, 2024
May 31, 2025
Class A                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Class A
Accumulated Value $ 9,550 $ 6,843 $ 7,764 $ 8,020 $ 7,833 $ 5,357 $ 7,353 $ 9,847 $ 9,031 $ 11,709 $ 11,360
Class C                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Class C
Accumulated Value 10,000 7,118 8,020 8,240 7,987 5,429 7,409 9,840 8,977 11,564 $ 11,140
Class I                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Class I
Accumulated Value 100,000 71,887 81,904 84,898 83,119 57,030 78,658 105,652 97,266 126,578 $ 123,197
Class R                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Class R
Accumulated Value 10,000 7,161 8,103 8,360 8,147 5,557 7,629 10,192 9,334 12,094 $ 11,710
Class Z                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Class Z
Accumulated Value 10,000 7,189 8,181 8,490 8,312 5,714 7,866 10,565 9,739 12,671 $ 12,333
Class A | MSCI World Index - net                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     MSCI World Index - net
Accumulated Value 10,000 9,604 11,181 12,474 12,438 13,283 18,680 17,780 18,148 22,671 $ 25,780
Class C | MSCI World Index - net                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     MSCI World Index - net
Accumulated Value 10,000 9,604 11,181 12,474 12,438 13,283 18,680 17,780 18,148 22,671 $ 25,780
Class I | MSCI World Index - net                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     MSCI World Index - net
Accumulated Value 100,000 96,036 111,808 124,742 124,380 132,832 186,796 177,800 181,484 226,708 $ 257,805
Class R | MSCI World Index - net                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     MSCI World Index - net
Accumulated Value 10,000 9,604 11,181 12,474 12,438 13,283 18,680 17,780 18,148 22,671 $ 25,780
Class Z | MSCI World Index - net                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     MSCI World Index - net
Accumulated Value 10,000 9,604 11,181 12,474 12,438 13,283 18,680 17,780 18,148 22,671 $ 25,780
Class A | Linked Index                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Linked Index1
Accumulated Value 10,000 7,954 9,243 9,163 9,218 6,921 9,595 12,600 11,635 14,706 $ 13,322
Class C | Linked Index                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Linked Index1
Accumulated Value 10,000 7,954 9,243 9,163 9,218 6,921 9,595 12,600 11,635 14,706 $ 13,322
Class I | Linked Index                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Linked Index1
Accumulated Value 100,000 79,539 92,426 91,626 92,183 69,206 95,948 126,002 116,351 147,059 $ 133,217
Class R | Linked Index                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Linked Index1
Accumulated Value 10,000 7,954 9,243 9,163 9,218 6,921 9,595 12,600 11,635 14,706 $ 13,322
Class Z | Linked Index                      
Account Value [Line Items]                      
Line Graph and Table Measure Name                     Linked Index1
Accumulated Value $ 10,000 $ 7,954 $ 9,243 $ 9,163 $ 9,218 $ 6,921 $ 9,595 $ 12,600 $ 11,635 $ 14,706 $ 13,322