v3.26.3
Class A Class C and Investor Class [Member] Average Annual Total Returns - Class A, Class C and Investor Class
12 Months Ended 60 Months Ended 120 Months Ended 126 Months Ended 146 Months Ended
Dec. 31, 2025
Dec. 31, 2025
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%    
Performance Inception Date [1]       Jul. 01, 2015  
Cboe S&P 500 BuyWrite Index (BXM)          
Prospectus [Line Items]          
Average Annual Return, Percent [2] 8.91% 9.33% 7.31%    
Performance Inception Date [2]       Jul. 01, 2015  
Class A Shares          
Prospectus [Line Items]          
Average Annual Return, Percent 0.27% 5.02% 12.48%    
Performance Inception Date         Nov. 15, 2013
Class C Shares          
Prospectus [Line Items]          
Average Annual Return, Percent 5.46% 5.65% 12.59%    
Performance Inception Date       Jul. 01, 2015  
Investor Class Shares          
Prospectus [Line Items]          
Average Annual Return, Percent 6.70% 6.61% 13.47%    
Performance Inception Date         Nov. 15, 2013
Investor Class Shares | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent 4.97% 3.40% 10.06%    
Performance Inception Date         Nov. 15, 2013
Investor Class Shares | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent [3] 5.18% 4.22% 10.02%    
Performance Inception Date [3]         Nov. 15, 2013
[1]
Broad-based securities market index.
[2]
Additional index.
[3]
The Fund’s returns after taxes on distributions and sale of Fund shares may be higher than its returns after taxes on distributions because it includes the effect of a tax benefit an investor may receive resulting from the capital losses that would have been incurred on the sale of the shares.