v3.26.3
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 [1] 17.88% 14.42% 14.82%
Russell 2500® Growth Index (reflects no deduction for fees, expenses, or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 10.31% 2.98% 10.55%
Class A      
Prospectus [Line Items]      
Average Annual Return, Percent [1],[2] 2.18% 0.16% 10.28%
Class A | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent [1],[2] (0.46%) (1.14%) 8.41%
Class A | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent [1],[2] 2.98% 0.08% 8.11%
Class C      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 4.94% 0.23% 9.89%
Advisor Class      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 6.88% 1.26% 11.01%
Class I      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 6.78% 1.19% 10.97%
Class Z      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 6.87% 1.28% 11.06%
[1]
Includes the impact of proceeds received and credited to the Fund resulting from class action settlements, which enhanced the Fund’s performance for the year ended July 31, 2025 by 0.07%.
[2] After-tax returns: – Are shown for Class A shares only and will vary for the other Classes of shares because these Classes have different expense ratios; – Are an estimate, which is based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; actual after-tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and – Are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.