Touchstone Small Company Fund Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
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| Bloomberg US 3000 Index (reflects no deduction for fees, expenses or taxes)[Member] | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | [1],[2] | 17.21% | 13.09% | 14.27% | |||||
| Bloomberg US 2000 Index (reflects no deduction for fees, expenses or taxes)[Member] | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | [3] | 11.06% | 6.65% | 10.00% | |||||
| Russell 3000® Index (reflects no deduction for fees, expenses or taxes)[Member] | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | 17.15% | 13.15% | 14.29% | ||||||
| Russell 2000® Index (reflects no deduction for fees, expenses or taxes)[Member] | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | 12.81% | 6.09% | 9.62% | ||||||
| Class I | |||||||||
| Prospectus [Line Items] | |||||||||
| Average Annual Return, Percent | 9.72% | 9.10% | 11.37% | ||||||
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