v3.25.4
S000001114 [Member] Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
S&P 500® Index (reflects no deduction for fees, expenses, or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.82%
Russell 2000® Growth Index (reflects no deduction for fees, expenses, or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 13.01% 3.18% 9.57%
S&P 500® Growth Index (reflects no deduction for fees, expenses, or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 22.18% 15.04% 16.99%
CLASS N SHARES      
Prospectus [Line Items]      
Average Annual Return, Percent 16.19% 10.36% 12.94%
CLASS N SHARES | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 7.21% 4.16% 8.05%
CLASS N SHARES | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 15.01% 6.73% 9.22%
CLASS I SHARES      
Prospectus [Line Items]      
Average Annual Return, Percent 16.31% 10.53% 13.14%
[1] The Russell 2000® Growth Index replaced the S&P 500® Growth Index as the Fund's additonal benchmark on December 8, 2025 because the Investment Manager and Subadviser believe the new benchmark is more representative of the Fund's current strategies.