Touchstone Large Cap Fund Investment Strategy - Touchstone Large Cap Fund	Jun. 30, 2026
Prospectus [Line Items]
Strategy [Heading]	<span style="color:#000000;font-family:Arial Narrow;font-size:12pt;font-weight:bold;text-decoration:underline;">The Fund’s Principal Investment Strategies</span>
Strategy Narrative [Text Block]	The Fund invests, under normal market conditions, at least 80% of its assets in common stocks of large capitalization U.S. listed companies. For purposes of the Fund, a large capitalization company has a market capitalization within the range represented in the Russell 1000® Index (between approximately $1.7 billion and $5.5 trillion as of September 30, 2026) at the time of purchase. The size of the companies in the Russell 1000® Index will change with market conditions. London Company of Virginia d/b/a The London Company (“The London Company”), the Fund’s sub-adviser, seeks to purchase financially stable large-cap companies that it believes are consistently generating high returns on unleveraged operating capital, run by shareholder-oriented management, and trading at a discount to the company’s respective private market values. Guiding principles of The London Company’s large-cap philosophy include: (1) a focus on cash return on tangible capital, not earnings per share; (2) balance sheet optimization; (3) optimal allocation of investments is essential to good investment results; and (4) low turnover and tax sensitivity enhances real returns.The Fund will typically hold approximately 30 to 40 securities. The London Company invests for the long term and attempts to minimize turnover in an effort to reduce transaction costs and taxes. The Fund may invest a high percentage of its assets in specific sectors of the market in order to achieve a potentially greater investment return. The London Company generally sells a security when: it becomes overvalued and has reached its price target; the issuer’s fundamentals deteriorate; there is significant trading activity by insiders; or there is a more promising alternative. The London Company may also sell a security to adjust the Fund’s overall portfolio risk.

Touchstone Large Cap Fund Investment Strategy - Touchstone Large Cap Fund

Jun. 30, 2026

<span style="color:#000000;font-family:Arial Narrow;font-size:12pt;font-weight:bold;text-decoration:underline;">The Fund’s Principal Investment Strategies</span>

Strategy Narrative [Text Block]

The Fund invests, under normal market conditions, at least 80% of its assets in common stocks of large capitalization U.S. listed companies. For purposes of the Fund, a large capitalization company has a market capitalization within the range represented in the Russell 1000® Index (between approximately $1.7 billion and $5.5 trillion as of September 30, 2026) at the time of purchase. The size of the companies in the Russell 1000® Index will change with market conditions. London Company of Virginia d/b/a The London Company (“The London Company”), the Fund’s sub-adviser, seeks to purchase financially stable large-cap companies that it believes are consistently generating high returns on unleveraged operating capital, run by shareholder-oriented management, and trading at a discount to the company’s respective private market values. Guiding principles of The London Company’s large-cap philosophy include: (1) a focus on cash return on tangible capital, not earnings per share; (2) balance sheet optimization; (3) optimal allocation of investments is essential to good investment results; and (4) low turnover and tax sensitivity enhances real returns.The Fund will typically hold approximately 30 to 40 securities. The London Company invests for the long term and attempts to minimize turnover in an effort to reduce transaction costs and taxes. The Fund may invest a high percentage of its assets in specific sectors of the market in order to achieve a potentially greater investment return. The London Company generally sells a security when: it becomes overvalued and has reached its price target; the issuer’s fundamentals deteriorate; there is significant trading activity by insiders; or there is a more promising alternative. The London Company may also sell a security to adjust the Fund’s overall portfolio risk.