v3.26.1
Touchstone Small Cap Fund Expense Example, No Redemption - Touchstone Small Cap Fund - Class C
Sep. 30, 2025
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 198
Expense Example, No Redemption, 3 Years 782
Expense Example, No Redemption, 5 Years 1,392
Expense Example, No Redemption, 10 Years $ 3,040