v3.25.4
Shareholder Fees - Rational Premium Income Fund
Dec. 31, 2025
USD ($)
Rational Premium Income Fund Institutional Shares  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Exchange Fee $ 0
Rational Premium Income Fund Class A Shares  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 4.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% [1]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Exchange Fee $ 0
Rational Premium Income Fund Class C Shares  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 1.00% [2]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Exchange Fee $ 0
[1] In the case of investments of $1 million or more (where you do not pay an initial sales charge and the selling broker receives a commission), a 1.00% contingent deferred sales charge (“CDSC”) may be assessed on shares redeemed within two years of purchase.
[2] Maximum Deferred Sales Charge on Class C shares applies to shares sold within 12 months of purchase.