v3.25.4
Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended
Oct. 31, 2025
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Class A        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return Before Taxes      
Average Annual Return, Percent   40.47% 11.78% 10.84%
Performance Inception Date Dec. 31, 2025      
Class A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return After Taxes on Distributions      
Average Annual Return, Percent [1]   38.14% 11.19% 10.50%
Class A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent [1]   25.55% 9.45% 9.07%
Class I        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class I Shares – Return Before Taxes      
Average Annual Return, Percent   47.54% 13.11% 11.66%
Performance Inception Date Dec. 31, 2025      
Class A        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return Before Taxes      
Average Annual Return, Percent   7.88% 0.27% 2.11%
Performance Inception Date Dec. 31, 2025      
Class A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return After Taxes on Distributions      
Average Annual Return, Percent [2]   6.47% (0.40%) 1.67%
Class A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent [2]   4.65% (0.09%) 1.44%
Class I        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class I Shares – Return Before Taxes      
Average Annual Return, Percent   13.20% 1.41% 2.82%
Performance Inception Date Dec. 31, 2025      
Class A        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A – Return Before Taxes      
Average Annual Return, Percent   54.61% 12.80% 9.29%
Performance Inception Date Dec. 31, 2025      
Class A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A – Return After Taxes on Distributions      
Average Annual Return, Percent [3]   52.43% 12.06% 8.76%
Class A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A – Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent [3]   34.12% 10.25% 7.63%
Class I        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class I – Return Before Taxes      
Average Annual Return, Percent   62.35% 14.14% 10.08%
Performance Inception Date Dec. 31, 2025      
Class A        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return Before Taxes      
Average Annual Return, Percent   19.76% 0.20% 5.01%
Performance Inception Date Dec. 31, 2025      
Class A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return After Taxes on Distributions      
Average Annual Return, Percent [4]   19.09% (1.05%) 3.95%
Class A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent [4]   11.96% 0.04% 3.84%
Class I        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class I Shares – Return Before Taxes      
Average Annual Return, Percent   25.72% 1.37% 5.75%
Performance Inception Date Dec. 31, 2025      
Class A        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return Before Taxes      
Average Annual Return, Percent   118.84% 11.36% 18.39%
Performance Inception Date Dec. 31, 2025      
Class A | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return After Taxes on Distributions      
Average Annual Return, Percent [5]   113.27% 9.89% 16.40%
Class A | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class A Shares – Return After Taxes on Distributions and Sale of Fund Shares      
Average Annual Return, Percent [5]   70.53% 8.27% 14.49%
Class I        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Class I Shares – Return Before Taxes      
Average Annual Return, Percent [6]   129.70% 12.66% 19.15%
Performance Inception Date [6] Dec. 31, 2025      
MSCI All Country World Ex USA Value Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] MSCI All Country World Ex USA Value Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   39.50% 11.87% 8.74%
MSCI World Ex USA Value Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] MSCI World Ex USA Value Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   42.23% 13.94% 9.16%
Bloomberg World ex US Large & Mid Cap Net Return Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Bloomberg World ex US Large & Mid Cap Net Return Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   31.47% 7.59% 8.43%
JPMorgan GBI Global ex-US FX NY Index Unhedged in USD (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] JPMorgan GBI Global ex-US FX NY Index Unhedged in USD (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   6.91% (6.24%) (0.75%)
FTSE Non USD World Government Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] FTSE Non USD World Government Bond Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   8.47% (5.21%) (0.16%)
Bloomberg Global Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Bloomberg Global Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   8.17% (2.15%) 1.26%
S&P International Dividend Opportunities Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] S&P International Dividend Opportunities Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   31.31% 8.38% 7.68%
MSCI Emerging Markets Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] MSCI Emerging Markets Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   33.57% 4.20% 8.42%
Philadelphia Gold & Silver Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] Philadelphia Gold & Silver Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   155.10% 21.88% 24.43%
NYSE ARCA Gold Miners Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] NYSE ARCA Gold Miners Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   155.37% 19.39% 20.40%
S&P 500 Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Label [Optional Text] S&P 500 Index (reflects no deduction for fees, expenses or taxes)      
Average Annual Return, Percent   17.88% 14.42% 14.82%
[1] After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Class A shares only and after-tax returns for classes other than Class A will vary from returns shown for Class A.
[2] After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Class A shares only and after-tax returns for classes other than Class A will vary from returns shown for Class A.
[3] After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Class A shares only and after-tax returns for classes other than Class A will vary from returns shown for Class A.
[4] After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Class A shares only and after-tax returns for classes other than Class A will vary from returns shown for Class A.
[5] After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
[6] Class A shares were first offered on July 19, 2013. Class I shares were first offered on November 20, 2018. The performance figures for Class I include the performance for Class A for the periods prior to the start date of Class I. Class A imposes higher expenses than Class I.