v3.26.1
Shareholder Report
6 Months Ended
Mar. 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Touchstone Funds Group Trust
Entity Central Index Key 0000914243
Entity Investment Company Type N-1A
Document Period End Date Mar. 31, 2026
C000221929 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital Select Growth Fund
Class Name CLASS R6
Trading Symbol TSNRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital Select Growth Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class R6
   $30    0.67%
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.67%
Net Assets $ 1,903,912,454
Holdings Count | Holding 29
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,903,912,454  
Total number of portfolio holdings
     29  
Portfolio turnover rate
     16%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Information Technology
     41.9%  
Communication Services
     19.3%  
Consumer Discretionary
     13.9%  
Financials
     10.8%  
Industrials
     6.6%  
Health Care
     0.7%  
Short-Term Investment Fund
     7.2%  
Other Assets/Liabilities (Net)
     (0.4)%  
Total
     100.0%  
C000221930 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital Select Growth Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol CISGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital Select Growth Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $35    0.78%
Expenses Paid, Amount $ 35
Expense Ratio, Percent 0.78%
Net Assets $ 1,903,912,454
Holdings Count | Holding 29
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,903,912,454  
Total number of portfolio holdings
     29  
Portfolio turnover rate
     16%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     41.9%  
Communication Services
     19.3%  
Consumer Discretionary
     13.9%  
Financials
     10.8%  
Industrials
     6.6%  
Health Care
     0.7%  
Short-Term Investment Fund
     7.2%  
Other Assets/Liabilities (Net)
     (0.4)%  
Total
     100.0%  
C000016014 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital Select Growth Fund
Class Name CLASS Z
Trading Symbol PTSGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital Select Growth Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Z
   $52    1.15%
Expenses Paid, Amount $ 52
Expense Ratio, Percent 1.15%
Net Assets $ 1,903,912,454
Holdings Count | Holding 29
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,903,912,454  
Total number of portfolio holdings
     29  
Portfolio turnover rate
     16%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     41.9%  
Communication Services
     19.3%  
Consumer Discretionary
     13.9%  
Financials
     10.8%  
Industrials
     6.6%  
Health Care
     0.7%  
Short-Term Investment Fund
     7.2%  
Other Assets/Liabilities (Net)
     (0.4)%  
Total
     100.0%  
C000016013 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital Select Growth Fund
Class Name CLASS Y
Trading Symbol CFSIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital Select Growth Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $39    0.86%
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.86%
Net Assets $ 1,903,912,454
Holdings Count | Holding 29
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,903,912,454  
Total number of portfolio holdings
     29  
Portfolio turnover rate
     16%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Information Technology
     41.9%  
Communication Services
     19.3%  
Consumer Discretionary
     13.9%  
Financials
     10.8%  
Industrials
     6.6%  
Health Care
     0.7%  
Short-Term Investment Fund
     7.2%  
Other Assets/Liabilities (Net)
     (0.4)%  
Total
     100.0%  
C000093499 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital Select Growth Fund
Class Name CLASS C
Trading Symbol TSNCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital Select Growth Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $79    1.75%
Expenses Paid, Amount $ 79
Expense Ratio, Percent 1.75%
Net Assets $ 1,903,912,454
Holdings Count | Holding 29
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,903,912,454  
Total number of portfolio holdings
     29  
Portfolio turnover rate
     16%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     41.9%  
Communication Services
     19.3%  
Consumer Discretionary
     13.9%  
Financials
     10.8%  
Industrials
     6.6%  
Health Care
     0.7%  
Short-Term Investment Fund
     7.2%  
Other Assets/Liabilities (Net)
     (0.4)%  
Total
     100.0%  
C000093498 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital Select Growth Fund
Class Name CLASS A
Trading Symbol TSNAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital Select Growth Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class A
   $52    1.15%
Expenses Paid, Amount $ 52
Expense Ratio, Percent 1.15%
Net Assets $ 1,903,912,454
Holdings Count | Holding 29
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,903,912,454  
Total number of portfolio holdings
     29  
Portfolio turnover rate
     16%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Information Technology
     41.9%  
Communication Services
     19.3%  
Consumer Discretionary
     13.9%  
Financials
     10.8%  
Industrials
     6.6%  
Health Care
     0.7%  
Short-Term Investment Fund
     7.2%  
Other Assets/Liabilities (Net)
     (0.4)%  
Total
     100.0%  
C000048891 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Fund
Class Name CLASS A
Trading Symbol TMAPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class A
   $59    1.19%
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.19%
Net Assets $ 4,375,178,065
Holdings Count | Holding 33
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 4,375,178,065  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     6%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Industrials
     26.3%  
Financials
     14.6%  
Consumer Discretionary
     12.3%  
Health Care
     11.6%  
Materials
     11.1%  
Information Technology
     10.0%  
Consumer Staples
     8.9%  
Real Estate
     2.8%  
Short-Term Investment Fund
     2.5%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000048892 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Fund
Class Name CLASS C
Trading Symbol TMCJX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $96    1.95%
Expenses Paid, Amount $ 96
Expense Ratio, Percent 1.95%
Net Assets $ 4,375,178,065
Holdings Count | Holding 33
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 4,375,178,065  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     6%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Industrials
     26.3%  
Financials
     14.6%  
Consumer Discretionary
     12.3%  
Health Care
     11.6%  
Materials
     11.1%  
Information Technology
     10.0%  
Consumer Staples
     8.9%  
Real Estate
     2.8%  
Short-Term Investment Fund
     2.5%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000016016 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Fund
Class Name CLASS Y
Trading Symbol TMCPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $46    0.94%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.94%
Net Assets $ 4,375,178,065
Holdings Count | Holding 33
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 4,375,178,065  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     6%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Industrials
     26.3%  
Financials
     14.6%  
Consumer Discretionary
     12.3%  
Health Care
     11.6%  
Materials
     11.1%  
Information Technology
     10.0%  
Consumer Staples
     8.9%  
Real Estate
     2.8%  
Short-Term Investment Fund
     2.5%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000039629 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Fund
Class Name CLASS Z
Trading Symbol TMCTX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Z
   $61    1.24%
Expenses Paid, Amount $ 61
Expense Ratio, Percent 1.24%
Net Assets $ 4,375,178,065
Holdings Count | Holding 33
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 4,375,178,065  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     6%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Industrials
     26.3%  
Financials
     14.6%  
Consumer Discretionary
     12.3%  
Health Care
     11.6%  
Materials
     11.1%  
Information Technology
     10.0%  
Consumer Staples
     8.9%  
Real Estate
     2.8%  
Short-Term Investment Fund
     2.5%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000112484 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TMPIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $44    0.89%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.89%
Net Assets $ 4,375,178,065
Holdings Count | Holding 33
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 4,375,178,065  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     6%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Industrials
     26.3%  
Financials
     14.6%  
Consumer Discretionary
     12.3%  
Health Care
     11.6%  
Materials
     11.1%  
Information Technology
     10.0%  
Consumer Staples
     8.9%  
Real Estate
     2.8%  
Short-Term Investment Fund
     2.5%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000226003 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Fund
Class Name CLASS R6
Trading Symbol TMPRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class R6
   $40    0.82%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.82%
Net Assets $ 4,375,178,065
Holdings Count | Holding 33
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 4,375,178,065  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     6%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     26.3%  
Financials
     14.6%  
Consumer Discretionary
     12.3%  
Health Care
     11.6%  
Materials
     11.1%  
Information Technology
     10.0%  
Consumer Staples
     8.9%  
Real Estate
     2.8%  
Short-Term Investment Fund
     2.5%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000099304 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Small Cap Value Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TVOIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Small Cap Value Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Institutional Class
   $49    0.94%
Expenses Paid, Amount $ 49
Expense Ratio, Percent 0.94%
Net Assets $ 198,316,949
Holdings Count | Holding 87
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 198,316,949  
Total number of portfolio holdings
     87  
Portfolio turnover rate
     8%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Financials
     25.0%  
Industrials
     21.2%  
Information Technology
     10.3%  
Consumer Discretionary
     9.1%  
Real Estate
     7.4%  
Health Care
     7.0%  
Energy
     5.5%  
Materials
     4.6%  
Utilities
     4.3%  
Consumer Staples
     2.5%  
Exchange-Traded Fund
     0.5%  
Short-Term Investment Funds
     3.9%  
Other Assets/Liabilities (Net)
     (1.3)%  
Total
     100.0%  
C000099303 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Small Cap Value Fund
Class Name CLASS Y
Trading Symbol TVOYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Small Cap Value Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class Y
   $58    1.10%
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.10%
Net Assets $ 198,316,949
Holdings Count | Holding 87
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 198,316,949  
Total number of portfolio holdings
     87  
Portfolio turnover rate
     8%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Financials
     25.0%  
Industrials
     21.2%  
Information Technology
     10.3%  
Consumer Discretionary
     9.1%  
Real Estate
     7.4%  
Health Care
     7.0%  
Energy
     5.5%  
Materials
     4.6%  
Utilities
     4.3%  
Consumer Staples
     2.5%  
Exchange-Traded Fund
     0.5%  
Short-Term Investment Funds
     3.9%  
Other Assets/Liabilities (Net)
     (1.3)%  
Total
     100.0%  
C000051267 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Small Cap Value Fund
Class Name CLASS C
Trading Symbol TVOCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Small Cap Value Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class C
   $105    2.00%
Expenses Paid, Amount $ 105
Expense Ratio, Percent 2.00%
Net Assets $ 198,316,949
Holdings Count | Holding 87
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 198,316,949  
Total number of portfolio holdings
     87  
Portfolio turnover rate
     8%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Financials
     25.0%  
Industrials
     21.2%  
Information Technology
     10.3%  
Consumer Discretionary
     9.1%  
Real Estate
     7.4%  
Health Care
     7.0%  
Energy
     5.5%  
Materials
     4.6%  
Utilities
     4.3%  
Consumer Staples
     2.5%  
Exchange-Traded Fund
     0.5%  
Short-Term Investment Funds
     3.9%  
Other Assets/Liabilities (Net)
     (1.3)%  
Total
     100.0%  
C000051266 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Small Cap Value Fund
Class Name CLASS A
Trading Symbol TVOAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Small Cap Value Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class A
   $71    1.35%
Expenses Paid, Amount $ 71
Expense Ratio, Percent 1.35%
Net Assets $ 198,316,949
Holdings Count | Holding 87
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 198,316,949  
Total number of portfolio holdings
     87  
Portfolio turnover rate
     8%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Financials
     25.0%  
Industrials
     21.2%  
Information Technology
     10.3%  
Consumer Discretionary
     9.1%  
Real Estate
     7.4%  
Health Care
     7.0%  
Energy
     5.5%  
Materials
     4.6%  
Utilities
     4.3%  
Consumer Staples
     2.5%  
Exchange-Traded Fund
     0.5%  
Short-Term Investment Funds
     3.9%  
Other Assets/Liabilities (Net)
     (1.3)%  
Total
     100.0%  
C000109425 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ultra Short Duration Fixed Income Fund
Class Name CLASS A
Trading Symbol TSDAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ultra Short Duration Fixed Income Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class A
   $33    0.65%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.65%
Net Assets $ 1,021,641,670
Holdings Count | Holding 288
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,021,641,670  
Total number of portfolio holdings
     288  
Portfolio turnover rate
     45%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     33.5%  
Asset-Backed Securities
     32.0%  
Commercial Mortgage-Backed Securities
     20.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.4%  
Commercial Paper
     3.7%  
U.S. Treasury Obligations
     1.6%  
Municipal Bonds
     0.4%  
U.S. Government Mortgage-Backed Obligations
     0.3%  
Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.0%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     42.6%  
AA/Aa
     10.1%  
A/A
     17.1%  
BBB/Baa
     28.5%  
BB/Ba
     1.0%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000109426 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ultra Short Duration Fixed Income Fund
Class Name CLASS C
Trading Symbol TSDCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ultra Short Duration Fixed Income Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $57    1.14%
Expenses Paid, Amount $ 57
Expense Ratio, Percent 1.14%
Net Assets $ 1,021,641,670
Holdings Count | Holding 288
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,021,641,670  
Total number of portfolio holdings
     288  
Portfolio turnover rate
     45%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     33.5%  
Asset-Backed Securities
     32.0%  
Commercial Mortgage-Backed Securities
     20.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.4%  
Commercial Paper
     3.7%  
U.S. Treasury Obligations
     1.6%  
Municipal Bonds
     0.4%  
U.S. Government Mortgage-Backed Obligations
     0.3%  
Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.0%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     42.6%  
AA/Aa
     10.1%  
A/A
     17.1%  
BBB/Baa
     28.5%  
BB/Ba
     1.0%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000193832 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ultra Short Duration Fixed Income Fund
Class Name CLASS S
Trading Symbol SSSGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ultra Short Duration Fixed Income Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class S
   $45    0.90%
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.90%
Net Assets $ 1,021,641,670
Holdings Count | Holding 288
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,021,641,670  
Total number of portfolio holdings
     288  
Portfolio turnover rate
     45%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     33.5%  
Asset-Backed Securities
     32.0%  
Commercial Mortgage-Backed Securities
     20.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.4%  
Commercial Paper
     3.7%  
U.S. Treasury Obligations
     1.6%  
Municipal Bonds
     0.4%  
U.S. Government Mortgage-Backed Obligations
     0.3%  
Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.0%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     42.6%  
AA/Aa
     10.1%  
A/A
     17.1%  
BBB/Baa
     28.5%  
BB/Ba
     1.0%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000109427 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ultra Short Duration Fixed Income Fund
Class Name CLASS Y
Trading Symbol TSYYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ultra Short Duration Fixed Income Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $20    0.40%
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.40%
Net Assets $ 1,021,641,670
Holdings Count | Holding 288
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,021,641,670  
Total number of portfolio holdings
     288  
Portfolio turnover rate
     45%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     33.5%  
Asset-Backed Securities
     32.0%  
Commercial Mortgage-Backed Securities
     20.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.4%  
Commercial Paper
     3.7%  
U.S. Treasury Obligations
     1.6%  
Municipal Bonds
     0.4%  
U.S. Government Mortgage-Backed Obligations
     0.3%  
Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.0%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     42.6%  
AA/Aa
     10.1%  
A/A
     17.1%  
BBB/Baa
     28.5%  
BB/Ba
     1.0%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000017655 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ultra Short Duration Fixed Income Fund
Class Name CLASS Z
Trading Symbol TSDOX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ultra Short Duration Fixed Income Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Z
   $33    0.65%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.65%
Net Assets $ 1,021,641,670
Holdings Count | Holding 288
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,021,641,670  
Total number of portfolio holdings
     288  
Portfolio turnover rate
     45%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     33.5%  
Asset-Backed Securities
     32.0%  
Commercial Mortgage-Backed Securities
     20.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.4%  
Commercial Paper
     3.7%  
U.S. Treasury Obligations
     1.6%  
Municipal Bonds
     0.4%  
U.S. Government Mortgage-Backed Obligations
     0.3%  
Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.0%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     42.6%  
AA/Aa
     10.1%  
A/A
     17.1%  
BBB/Baa
     28.5%  
BB/Ba
     1.0%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000109428 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ultra Short Duration Fixed Income Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TSDIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ultra Short Duration Fixed Income Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $18    0.35%
Expenses Paid, Amount $ 18
Expense Ratio, Percent 0.35%
Net Assets $ 1,021,641,670
Holdings Count | Holding 288
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 1,021,641,670  
Total number of portfolio holdings
     288  
Portfolio turnover rate
     45%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     33.5%  
Asset-Backed Securities
     32.0%  
Commercial Mortgage-Backed Securities
     20.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.4%  
Commercial Paper
     3.7%  
U.S. Treasury Obligations
     1.6%  
Municipal Bonds
     0.4%  
U.S. Government Mortgage-Backed Obligations
     0.3%  
Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.0%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     42.6%  
AA/Aa
     10.1%  
A/A
     17.1%  
BBB/Baa
     28.5%  
BB/Ba
     1.0%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000244703 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital International Growth Equity Fund
Class Name CLASS R6
Trading Symbol TPYRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital International Growth Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class R6
   $36    0.78%
Expenses Paid, Amount $ 36
Expense Ratio, Percent 0.78%
Net Assets $ 85,074,950
Holdings Count | Holding 32
Investment Company Portfolio Turnover 13.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 85,074,950  
Total number of portfolio holdings
     32  
Portfolio turnover rate
     13%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     29.0%  
Consumer Discretionary
     18.1%  
Health Care
     12.2%  
Financials
     11.5%  
Industrials
     11.1%  
Communication Services
     10.5%  
Consumer Staples
     6.4%  
Short-Term Investment Fund
     1.2%  
Other Assets/Liabilities (Net)
     0.0%  
Total
     100.0%  
GEOGRAPHICAL ALLOCATION (% OF NET ASSETS)  
Common Stocks
        
Switzerland
     11.2%  
Netherlands
     11.1%  
Taiwan
     9.9%  
Brazil
     8.6%  
Canada
     7.8%  
Japan
     7.7%  
United States
     7.3%  
Sweden
     7.0%  
India
     6.6%  
United Kingdom
     4.0%  
Italy
     3.8%  
Singapore
     3.3%  
Germany
     3.2%  
Other Countries
     7.3%  
Short-Term Investment Fund
     1.2%  
Total
     100.0%  
C000214318 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital International Growth Equity Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TPYIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital International Growth Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $39    0.85%
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.85%
Net Assets $ 85,074,950
Holdings Count | Holding 32
Investment Company Portfolio Turnover 13.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 85,074,950  
Total number of portfolio holdings
     32  
Portfolio turnover rate
     13%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     29.0%  
Consumer Discretionary
     18.1%  
Health Care
     12.2%  
Financials
     11.5%  
Industrials
     11.1%  
Communication Services
     10.5%  
Consumer Staples
     6.4%  
Short-Term Investment Fund
     1.2%  
Other Assets/Liabilities (Net)
     0.0%  
Total
     100.0%  
GEOGRAPHICAL ALLOCATION (% OF NET ASSETS)  
Common Stocks
        
Switzerland
     11.2%  
Netherlands
     11.1%  
Taiwan
     9.9%  
Brazil
     8.6%  
Canada
     7.8%  
Japan
     7.7%  
United States
     7.3%  
Sweden
     7.0%  
India
     6.6%  
United Kingdom
     4.0%  
Italy
     3.8%  
Singapore
     3.3%  
Germany
     3.2%  
Other Countries
     7.3%  
Short-Term Investment Fund
     1.2%  
Total
     100.0%  
C000067757 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital International Growth Equity Fund
Class Name CLASS Y
Trading Symbol TPYYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital International Growth Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $41    0.90%
Expenses Paid, Amount $ 41
Expense Ratio, Percent 0.90%
Net Assets $ 85,074,950
Holdings Count | Holding 32
Investment Company Portfolio Turnover 13.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 85,074,950  
Total number of portfolio holdings
     32  
Portfolio turnover rate
     13%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     29.0%  
Consumer Discretionary
     18.1%  
Health Care
     12.2%  
Financials
     11.5%  
Industrials
     11.1%  
Communication Services
     10.5%  
Consumer Staples
     6.4%  
Short-Term Investment Fund
     1.2%  
Other Assets/Liabilities (Net)
     0.0%  
Total
     100.0%  
GEOGRAPHICAL ALLOCATION (% OF NET ASSETS)  
Common Stocks
        
Switzerland
     11.2%  
Netherlands
     11.1%  
Taiwan
     9.9%  
Brazil
     8.6%  
Canada
     7.8%  
Japan
     7.7%  
United States
     7.3%  
Sweden
     7.0%  
India
     6.6%  
United Kingdom
     4.0%  
Italy
     3.8%  
Singapore
     3.3%  
Germany
     3.2%  
Other Countries
     7.3%  
Short-Term Investment Fund
     1.2%  
Total
     100.0%  
C000055087 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital International Growth Equity Fund
Class Name CLASS C
Trading Symbol TPYCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital International Growth Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $87    1.92%
Expenses Paid, Amount $ 87
Expense Ratio, Percent 1.92%
Net Assets $ 85,074,950
Holdings Count | Holding 32
Investment Company Portfolio Turnover 13.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 85,074,950  
Total number of portfolio holdings
     32  
Portfolio turnover rate
     13%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     29.0%  
Consumer Discretionary
     18.1%  
Health Care
     12.2%  
Financials
     11.5%  
Industrials
     11.1%  
Communication Services
     10.5%  
Consumer Staples
     6.4%  
Short-Term Investment Fund
     1.2%  
Other Assets/Liabilities (Net)
     0.0%  
Total
     100.0%  
GEOGRAPHICAL ALLOCATION (% OF NET ASSETS)  
Common Stocks
        
Switzerland
     11.2%  
Netherlands
     11.1%  
Taiwan
     9.9%  
Brazil
     8.6%  
Canada
     7.8%  
Japan
     7.7%  
United States
     7.3%  
Sweden
     7.0%  
India
     6.6%  
United Kingdom
     4.0%  
Italy
     3.8%  
Singapore
     3.3%  
Germany
     3.2%  
Other Countries
     7.3%  
Short-Term Investment Fund
     1.2%  
Total
     100.0%  
C000055086 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Sands Capital International Growth Equity Fund
Class Name CLASS A
Trading Symbol TPYAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Sands Capital International Growth Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class A
   $53    1.17%
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.17%
Net Assets $ 85,074,950
Holdings Count | Holding 32
Investment Company Portfolio Turnover 13.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 85,074,950  
Total number of portfolio holdings
     32  
Portfolio turnover rate
     13%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     29.0%  
Consumer Discretionary
     18.1%  
Health Care
     12.2%  
Financials
     11.5%  
Industrials
     11.1%  
Communication Services
     10.5%  
Consumer Staples
     6.4%  
Short-Term Investment Fund
     1.2%  
Other Assets/Liabilities (Net)
     0.0%  
Total
     100.0%  
GEOGRAPHICAL ALLOCATION (% OF NET ASSETS)  
Common Stocks
        
Switzerland
     11.2%  
Netherlands
     11.1%  
Taiwan
     9.9%  
Brazil
     8.6%  
Canada
     7.8%  
Japan
     7.7%  
United States
     7.3%  
Sweden
     7.0%  
India
     6.6%  
United Kingdom
     4.0%  
Italy
     3.8%  
Singapore
     3.3%  
Germany
     3.2%  
Other Countries
     7.3%  
Short-Term Investment Fund
     1.2%  
Total
     100.0%  
C000079898 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Value Fund
Class Name CLASS A
Trading Symbol TCVAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Value Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class A
   $62    1.17%
Expenses Paid, Amount $ 62
Expense Ratio, Percent 1.17%
Net Assets $ 563,661,967
Holdings Count | Holding 73
Investment Company Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 563,661,967  
Total number of portfolio holdings
     73  
Portfolio turnover rate
     14%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     19.8%  
Financials
     15.7%  
Information Technology
     14.0%  
Utilities
     9.1%  
Health Care
     8.6%  
Consumer Discretionary
     8.3%  
Energy
     7.1%  
Consumer Staples
     6.5%  
Materials
     5.9%  
Real Estate
     4.5%  
Exchange-Traded Fund
     0.0%  
Short-Term Investment Funds
     2.4%  
Other Assets/Liabilities (Net)
     (1.9)%  
Total
     100.0%  
C000079895 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Value Fund
Class Name CLASS C
Trading Symbol TMFCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Value Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $101    1.92%
Expenses Paid, Amount $ 101
Expense Ratio, Percent 1.92%
Net Assets $ 563,661,967
Holdings Count | Holding 73
Investment Company Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 563,661,967  
Total number of portfolio holdings
     73  
Portfolio turnover rate
     14%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     19.8%  
Financials
     15.7%  
Information Technology
     14.0%  
Utilities
     9.1%  
Health Care
     8.6%  
Consumer Discretionary
     8.3%  
Energy
     7.1%  
Consumer Staples
     6.5%  
Materials
     5.9%  
Real Estate
     4.5%  
Exchange-Traded Fund
     0.0%  
Short-Term Investment Funds
     2.4%  
Other Assets/Liabilities (Net)
     (1.9)%  
Total
     100.0%  
C000079896 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Value Fund
Class Name CLASS Y
Trading Symbol TCVYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Value Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $49    0.94%
Expenses Paid, Amount $ 49
Expense Ratio, Percent 0.94%
Net Assets $ 563,661,967
Holdings Count | Holding 73
Investment Company Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 563,661,967  
Total number of portfolio holdings
     73  
Portfolio turnover rate
     14%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     19.8%  
Financials
     15.7%  
Information Technology
     14.0%  
Utilities
     9.1%  
Health Care
     8.6%  
Consumer Discretionary
     8.3%  
Energy
     7.1%  
Consumer Staples
     6.5%  
Materials
     5.9%  
Real Estate
     4.5%  
Exchange-Traded Fund
     0.0%  
Short-Term Investment Funds
     2.4%  
Other Assets/Liabilities (Net)
     (1.9)%  
Total
     100.0%  
C000079897 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Mid Cap Value Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TCVIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Mid Cap Value Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $44    0.84%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.84%
Net Assets $ 563,661,967
Holdings Count | Holding 73
Investment Company Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 563,661,967  
Total number of portfolio holdings
     73  
Portfolio turnover rate
     14%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     19.8%  
Financials
     15.7%  
Information Technology
     14.0%  
Utilities
     9.1%  
Health Care
     8.6%  
Consumer Discretionary
     8.3%  
Energy
     7.1%  
Consumer Staples
     6.5%  
Materials
     5.9%  
Real Estate
     4.5%  
Exchange-Traded Fund
     0.0%  
Short-Term Investment Funds
     2.4%  
Other Assets/Liabilities (Net)
     (1.9)%  
Total
     100.0%  
C000079910 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Small Cap Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TSFIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Small Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Institutional Class
   $46    0.93%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.93%
Net Assets $ 246,120,039
Holdings Count | Holding 33
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 246,120,039  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     8%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     24.8%  
Financials
     17.0%  
Information Technology
     16.9%  
Consumer Discretionary
     13.5%  
Consumer Staples
     7.6%  
Materials
     7.0%  
Real Estate
     5.3%  
Health Care
     3.6%  
Short-Term Investment Fund
     4.4%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000079909 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Small Cap Fund
Class Name CLASS Y
Trading Symbol TSFYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Small Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class Y
   $50    1.01%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 1.01%
Net Assets $ 246,120,039
Holdings Count | Holding 33
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 246,120,039  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     8%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     24.8%  
Financials
     17.0%  
Information Technology
     16.9%  
Consumer Discretionary
     13.5%  
Consumer Staples
     7.6%  
Materials
     7.0%  
Real Estate
     5.3%  
Health Care
     3.6%  
Short-Term Investment Fund
     4.4%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000079908 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Small Cap Fund
Class Name CLASS C
Trading Symbol TSFCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Small Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class C
   $98    1.96%
Expenses Paid, Amount $ 98
Expense Ratio, Percent 1.96%
Net Assets $ 246,120,039
Holdings Count | Holding 33
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 246,120,039  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     8%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     24.8%  
Financials
     17.0%  
Information Technology
     16.9%  
Consumer Discretionary
     13.5%  
Consumer Staples
     7.6%  
Materials
     7.0%  
Real Estate
     5.3%  
Health Care
     3.6%  
Short-Term Investment Fund
     4.4%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000079907 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Small Cap Fund
Class Name CLASS A
Trading Symbol TSFAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Small Cap Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
     Costs of a $10,000     
investment
  
     Costs paid as a percentage     
of a $10,000 investment
Class A
   $63    1.26%
Expenses Paid, Amount $ 63
Expense Ratio, Percent 1.26%
Net Assets $ 246,120,039
Holdings Count | Holding 33
Investment Company Portfolio Turnover 8.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 246,120,039  
Total number of portfolio holdings
     33  
Portfolio turnover rate
     8%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
Industrials
     24.8%  
Financials
     17.0%  
Information Technology
     16.9%  
Consumer Discretionary
     13.5%  
Consumer Staples
     7.6%  
Materials
     7.0%  
Real Estate
     5.3%  
Health Care
     3.6%  
Short-Term Investment Fund
     4.4%  
Other Assets/Liabilities (Net)
     (0.1)%  
Total
     100.0%  
C000079919 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone US Quality Bond Fund
Class Name CLASS A
Trading Symbol TCPAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone US Quality Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class A
   $38    0.76%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.76%
Net Assets $ 575,381,889
Holdings Count | Holding 247
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 575,381,889  
Total number of portfolio holdings
     247  
Portfolio turnover rate
     10%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     23.5%  
U.S. Government Agency Obligations
     22.4%  
U.S. Treasury Obligations
     12.5%  
Agency Collateralized Mortgage Obligations
     12.0%  
U.S. Government Mortgage-Backed Obligations
     11.3%  
Asset-Backed Securities
     7.8%  
Municipal Bonds
     5.1%  
Commercial Mortgage-Backed Securities
     4.5%  
Non‑Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.1%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     20.4%  
AA/Aa
     64.3%  
A/A
     8.2%  
BBB/Baa
     6.8%  
BB/Ba
     0.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000079920 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone US Quality Bond Fund
Class Name CLASS C
Trading Symbol TCPCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone US Quality Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $73    1.45%
Expenses Paid, Amount $ 73
Expense Ratio, Percent 1.45%
Net Assets $ 575,381,889
Holdings Count | Holding 247
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 575,381,889  
Total number of portfolio holdings
     247  
Portfolio turnover rate
     10%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     23.5%  
U.S. Government Agency Obligations
     22.4%  
U.S. Treasury Obligations
     12.5%  
Agency Collateralized Mortgage Obligations
     12.0%  
U.S. Government Mortgage-Backed Obligations
     11.3%  
Asset-Backed Securities
     7.8%  
Municipal Bonds
     5.1%  
Commercial Mortgage-Backed Securities
     4.5%  
Non‑Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.1%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     20.4%  
AA/Aa
     64.3%  
A/A
     8.2%  
BBB/Baa
     6.8%  
BB/Ba
     0.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000079921 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone US Quality Bond Fund
Class Name CLASS Y
Trading Symbol TCPYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone US Quality Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $25    0.50%
Expenses Paid, Amount $ 25
Expense Ratio, Percent 0.50%
Net Assets $ 575,381,889
Holdings Count | Holding 247
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 575,381,889  
Total number of portfolio holdings
     247  
Portfolio turnover rate
     10%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     23.5%  
U.S. Government Agency Obligations
     22.4%  
U.S. Treasury Obligations
     12.5%  
Agency Collateralized Mortgage Obligations
     12.0%  
U.S. Government Mortgage-Backed Obligations
     11.3%  
Asset-Backed Securities
     7.8%  
Municipal Bonds
     5.1%  
Commercial Mortgage-Backed Securities
     4.5%  
Non‑Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.1%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     20.4%  
AA/Aa
     64.3%  
A/A
     8.2%  
BBB/Baa
     6.8%  
BB/Ba
     0.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000079922 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone US Quality Bond Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TCPNX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone US Quality Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $21    0.41%
Expenses Paid, Amount $ 21
Expense Ratio, Percent 0.41%
Net Assets $ 575,381,889
Holdings Count | Holding 247
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 575,381,889  
Total number of portfolio holdings
     247  
Portfolio turnover rate
     10%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     23.5%  
U.S. Government Agency Obligations
     22.4%  
U.S. Treasury Obligations
     12.5%  
Agency Collateralized Mortgage Obligations
     12.0%  
U.S. Government Mortgage-Backed Obligations
     11.3%  
Asset-Backed Securities
     7.8%  
Municipal Bonds
     5.1%  
Commercial Mortgage-Backed Securities
     4.5%  
Non‑Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.1%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     20.4%  
AA/Aa
     64.3%  
A/A
     8.2%  
BBB/Baa
     6.8%  
BB/Ba
     0.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000232512 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone US Quality Bond Fund
Class Name CLASS R6
Trading Symbol TIMPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone US Quality Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class R6
   $19    0.37%
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.37%
Net Assets $ 575,381,889
Holdings Count | Holding 247
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 575,381,889  
Total number of portfolio holdings
     247  
Portfolio turnover rate
     10%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)
 
Corporate Bonds
     23.5%  
U.S. Government Agency Obligations
     22.4%  
U.S. Treasury Obligations
     12.5%  
Agency Collateralized Mortgage Obligations
     12.0%  
U.S. Government Mortgage-Backed Obligations
     11.3%  
Asset-Backed Securities
     7.8%  
Municipal Bonds
     5.1%  
Commercial Mortgage-Backed Securities
     4.5%  
Non‑Agency Collateralized Mortgage Obligations
     0.0%  
Short-Term Investment Fund
     0.1%  
Other Assets/Liabilities (Net)
     0.8%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)
 
AAA/Aaa
     20.4%  
AA/Aa
     64.3%  
A/A
     8.2%  
BBB/Baa
     6.8%  
BB/Ba
     0.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000261019 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ares Credit Opportunities Fund
Class Name CLASS R6
Trading Symbol TARSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ares Credit Opportunities Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class R6
   $29    0.58%
Expenses Paid, Amount $ 29
Expense Ratio, Percent 0.58%
Net Assets $ 904,014,750
Holdings Count | Holding 458
Investment Company Portfolio Turnover 24.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 904,014,750  
Total number of portfolio holdings
     458  
Portfolio turnover rate
     24%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)  
Corporate Bonds
     81.9%  
Bank Loans
     8.5%  
Asset-Backed Securities
     3.8%  
Common Stocks
     2.3%  
Investment Funds
     0.4%  
Warrants
     0.3%  
Purchased Options
     0.0%  
Short-Term Investment Funds
     7.8%  
Other Assets/Liabilities (Net)
     (5.0)%  
Written Options
     0.0%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     7.6%  
BB/Ba
     40.2%  
B/B
     32.9%  
CCC
     9.8%  
C or Lower
     0.6%  
Not Rated
     8.9%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000131059 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ares Credit Opportunities Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TARBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ares Credit Opportunities Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $32    0.65%
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.65%
Net Assets $ 904,014,750
Holdings Count | Holding 458
Investment Company Portfolio Turnover 24.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 904,014,750  
Total number of portfolio holdings
     458  
Portfolio turnover rate
     24%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)  
Corporate Bonds
     81.9%  
Bank Loans
     8.5%  
Asset-Backed Securities
     3.8%  
Common Stocks
     2.3%  
Investment Funds
     0.4%  
Warrants
     0.3%  
Purchased Options
     0.0%  
Short-Term Investment Funds
     7.8%  
Other Assets/Liabilities (Net)
     (5.0)%  
Written Options
     0.0%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     7.6%  
BB/Ba
     40.2%  
B/B
     32.9%  
CCC
     9.8%  
C or Lower
     0.6%  
Not Rated
     8.9%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000131058 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ares Credit Opportunities Fund
Class Name CLASS Y
Trading Symbol TMAYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ares Credit Opportunities Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $38    0.76%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.76%
Net Assets $ 904,014,750
Holdings Count | Holding 458
Investment Company Portfolio Turnover 24.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 904,014,750  
Total number of portfolio holdings
     458  
Portfolio turnover rate
     24%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)  
Corporate Bonds
     81.9%  
Bank Loans
     8.5%  
Asset-Backed Securities
     3.8%  
Common Stocks
     2.3%  
Investment Funds
     0.4%  
Warrants
     0.3%  
Purchased Options
     0.0%  
Short-Term Investment Funds
     7.8%  
Other Assets/Liabilities (Net)
     (5.0)%  
Written Options
     0.0%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     7.6%  
BB/Ba
     40.2%  
B/B
     32.9%  
CCC
     9.8%  
C or Lower
     0.6%  
Not Rated
     8.9%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000131057 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ares Credit Opportunities Fund
Class Name CLASS C
Trading Symbol TMACX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ares Credit Opportunities Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $85    1.71%
Expenses Paid, Amount $ 85
Expense Ratio, Percent 1.71%
Net Assets $ 904,014,750
Holdings Count | Holding 458
Investment Company Portfolio Turnover 24.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 904,014,750  
Total number of portfolio holdings
     458  
Portfolio turnover rate
     24%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)  
Corporate Bonds
     81.9%  
Bank Loans
     8.5%  
Asset-Backed Securities
     3.8%  
Common Stocks
     2.3%  
Investment Funds
     0.4%  
Warrants
     0.3%  
Purchased Options
     0.0%  
Short-Term Investment Funds
     7.8%  
Other Assets/Liabilities (Net)
     (5.0)%  
Written Options
     0.0%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     7.6%  
BB/Ba
     40.2%  
B/B
     32.9%  
CCC
     9.8%  
C or Lower
     0.6%  
Not Rated
     8.9%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000131056 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Ares Credit Opportunities Fund
Class Name CLASS A
Trading Symbol TMARX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Ares Credit Opportunities Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class A
   $49    0.99%
Expenses Paid, Amount $ 49
Expense Ratio, Percent 0.99%
Net Assets $ 904,014,750
Holdings Count | Holding 458
Investment Company Portfolio Turnover 24.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 904,014,750  
Total number of portfolio holdings
     458  
Portfolio turnover rate
     24%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)  
Corporate Bonds
     81.9%  
Bank Loans
     8.5%  
Asset-Backed Securities
     3.8%  
Common Stocks
     2.3%  
Investment Funds
     0.4%  
Warrants
     0.3%  
Purchased Options
     0.0%  
Short-Term Investment Funds
     7.8%  
Other Assets/Liabilities (Net)
     (5.0)%  
Written Options
     0.0%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     7.6%  
BB/Ba
     40.2%  
B/B
     32.9%  
CCC
     9.8%  
C or Lower
     0.6%  
Not Rated
     8.9%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000176882 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Active Bond Fund
Class Name CLASS A
Trading Symbol TOBAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Active Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class A
   $42    0.83%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.83%
Net Assets $ 276,368,085
Holdings Count | Holding 539
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 276,368,085  
Total number of portfolio holdings
     539  
Portfolio turnover rate
     118%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)        
Corporate Bonds
     52.4%  
U.S. Treasury Obligations
     25.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.0%  
Commercial Mortgage-Backed Securities
     4.1%  
U.S. Government Mortgage-Backed Obligations
     3.5%  
Agency Collateralized Mortgage Obligations
     3.3%  
Asset-Backed Securities
     2.5%  
Sovereign Government Obligations
     0.5%  
Short-Term Investment Funds
     1.2%  
Other Assets/Liabilities (Net)
     0.2%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
AAA/Aaa
     35.3%  
AA/Aa
     14.1%  
A/A
     19.8%  
BBB/Baa
     24.2%  
BB/Ba
     1.9%  
B/B
     1.4%  
Not Rated
     3.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000176883 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Active Bond Fund
Class Name CLASS C
Trading Symbol TODCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Active Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $75    1.50%
Expenses Paid, Amount $ 75
Expense Ratio, Percent 1.50%
Net Assets $ 276,368,085
Holdings Count | Holding 539
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 276,368,085  
Total number of portfolio holdings
     539  
Portfolio turnover rate
     118%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)        
Corporate Bonds
     52.4%  
U.S. Treasury Obligations
     25.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.0%  
Commercial Mortgage-Backed Securities
     4.1%  
U.S. Government Mortgage-Backed Obligations
     3.5%  
Agency Collateralized Mortgage Obligations
     3.3%  
Asset-Backed Securities
     2.5%  
Sovereign Government Obligations
     0.5%  
Short-Term Investment Funds
     1.2%  
Other Assets/Liabilities (Net)
     0.2%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
AAA/Aaa
     35.3%  
AA/Aa
     14.1%  
A/A
     19.8%  
BBB/Baa
     24.2%  
BB/Ba
     1.9%  
B/B
     1.4%  
Not Rated
     3.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000176884 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Active Bond Fund
Class Name CLASS Y
Trading Symbol TOBYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Active Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $29    0.58%
Expenses Paid, Amount $ 29
Expense Ratio, Percent 0.58%
Net Assets $ 276,368,085
Holdings Count | Holding 539
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 276,368,085  
Total number of portfolio holdings
     539  
Portfolio turnover rate
     118%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)        
Corporate Bonds
     52.4%  
U.S. Treasury Obligations
     25.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.0%  
Commercial Mortgage-Backed Securities
     4.1%  
U.S. Government Mortgage-Backed Obligations
     3.5%  
Agency Collateralized Mortgage Obligations
     3.3%  
Asset-Backed Securities
     2.5%  
Sovereign Government Obligations
     0.5%  
Short-Term Investment Funds
     1.2%  
Other Assets/Liabilities (Net)
     0.2%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
AAA/Aaa
     35.3%  
AA/Aa
     14.1%  
A/A
     19.8%  
BBB/Baa
     24.2%  
BB/Ba
     1.9%  
B/B
     1.4%  
Not Rated
     3.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000176885 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Active Bond Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TOBIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Active Bond Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $25    0.50%
Expenses Paid, Amount $ 25
Expense Ratio, Percent 0.50%
Net Assets $ 276,368,085
Holdings Count | Holding 539
Investment Company Portfolio Turnover 118.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 276,368,085  
Total number of portfolio holdings
     539  
Portfolio turnover rate
     118%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)        
Corporate Bonds
     52.4%  
U.S. Treasury Obligations
     25.3%  
Non‑Agency Collateralized Mortgage Obligations
     7.0%  
Commercial Mortgage-Backed Securities
     4.1%  
U.S. Government Mortgage-Backed Obligations
     3.5%  
Agency Collateralized Mortgage Obligations
     3.3%  
Asset-Backed Securities
     2.5%  
Sovereign Government Obligations
     0.5%  
Short-Term Investment Funds
     1.2%  
Other Assets/Liabilities (Net)
     0.2%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
AAA/Aaa
     35.3%  
AA/Aa
     14.1%  
A/A
     19.8%  
BBB/Baa
     24.2%  
BB/Ba
     1.9%  
B/B
     1.4%  
Not Rated
     3.3%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000176889 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone High Yield Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol THIYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone High Yield Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $36    0.72%
Expenses Paid, Amount $ 36
Expense Ratio, Percent 0.72%
Net Assets $ 110,000,898
Holdings Count | Holding 157
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 110,000,898  
Total number of portfolio holdings
     157  
Portfolio turnover rate
     32%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)        
Corporate Bonds
     94.7%  
Bank Loans
     1.8%  
Common Stocks
     0.1%  
Short-Term Investment Funds
     9.4%  
Other Assets/Liabilities (Net)
     (6.0)%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     16.9%  
BB/Ba
     50.1%  
B/B
     27.8%  
CCC
     4.5%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000176888 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone High Yield Fund
Class Name CLASS Y
Trading Symbol THYYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone High Yield Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $40    0.80%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.80%
Net Assets $ 110,000,898
Holdings Count | Holding 157
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 110,000,898  
Total number of portfolio holdings
     157  
Portfolio turnover rate
     32%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)        
Corporate Bonds
     94.7%  
Bank Loans
     1.8%  
Common Stocks
     0.1%  
Short-Term Investment Funds
     9.4%  
Other Assets/Liabilities (Net)
     (6.0)%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     16.9%  
BB/Ba
     50.1%  
B/B
     27.8%  
CCC
     4.5%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000176887 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone High Yield Fund
Class Name CLASS C
Trading Symbol THYCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone High Yield Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $87    1.73%
Expenses Paid, Amount $ 87
Expense Ratio, Percent 1.73%
Net Assets $ 110,000,898
Holdings Count | Holding 157
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 110,000,898  
Total number of portfolio holdings
     157  
Portfolio turnover rate
     32%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)        
Corporate Bonds
     94.7%  
Bank Loans
     1.8%  
Common Stocks
     0.1%  
Short-Term Investment Funds
     9.4%  
Other Assets/Liabilities (Net)
     (6.0)%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     16.9%  
BB/Ba
     50.1%  
B/B
     27.8%  
CCC
     4.5%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000176886 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone High Yield Fund
Class Name CLASS A
Trading Symbol THYAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone High Yield Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class A
   $51    1.02%
Expenses Paid, Amount $ 51
Expense Ratio, Percent 1.02%
Net Assets $ 110,000,898
Holdings Count | Holding 157
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 110,000,898  
Total number of portfolio holdings
     157  
Portfolio turnover rate
     32%  
Holdings [Text Block]
Graphical Representation of Holdings
ASSET CATEGORY (% OF NET ASSETS)        
Corporate Bonds
     94.7%  
Bank Loans
     1.8%  
Common Stocks
     0.1%  
Short-Term Investment Funds
     9.4%  
Other Assets/Liabilities (Net)
     (6.0)%  
Total
     100.0%  
CREDIT QUALITY* (% OF FIXED INCOME SECURITIES)  
BBB/Baa
     16.9%  
BB/Ba
     50.1%  
B/B
     27.8%  
CCC
     4.5%  
Not Rated
     0.7%  
Total
     100.0%  
* Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
Credit Ratings Selection [Text Block] Credit quality ratings are from S&P Global Ratings (“S&P”) and Moody’s Investor Service (“Moody’s”). If agency ratings differ, the higher ratings will be used. Where no rating has been assigned, it may be for reasons unrelated to the creditworthiness of the issuer.
C000226969 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Dividend Equity Fund
Class Name CLASS A
Trading Symbol TQCAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Dividend Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class A
   $50    0.99%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 0.99%
Net Assets $ 2,292,109,109
Holdings Count | Holding 92
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 2,292,109,109  
Total number of portfolio holdings
     92  
Portfolio turnover rate
     2%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)        
Information Technology
     20.4%  
Financials
     14.9%  
Health Care
     12.5%  
Industrials
     9.7%  
Communication Services
     8.8%  
Energy
     7.4%  
Consumer Staples
     7.3%  
Consumer Discretionary
     6.2%  
Utilities
     4.9%  
Materials
     3.8%  
Real Estate
     3.4%  
Short-Term Investment Fund
     0.7%  
Other Assets/Liabilities (Net)
     (0.0)%  
Total
     100.0%  
C000226968 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Dividend Equity Fund
Class Name CLASS C
Trading Symbol TQCCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Dividend Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class C
   $85    1.69%
Expenses Paid, Amount $ 85
Expense Ratio, Percent 1.69%
Net Assets $ 2,292,109,109
Holdings Count | Holding 92
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 2,292,109,109  
Total number of portfolio holdings
     92  
Portfolio turnover rate
     2%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Information Technology
     20.4%  
Financials
     14.9%  
Health Care
     12.5%  
Industrials
     9.7%  
Communication Services
     8.8%  
Energy
     7.4%  
Consumer Staples
     7.3%  
Consumer Discretionary
     6.2%  
Utilities
     4.9%  
Materials
     3.8%  
Real Estate
     3.4%  
Short-Term Investment Fund
     0.7%  
Other Assets/Liabilities (Net)
     (0.0)%  
Total
     100.0%  
C000226970 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Dividend Equity Fund
Class Name CLASS Y
Trading Symbol TQCYX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Dividend Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class Y
   $38    0.75%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.75%
Net Assets $ 2,292,109,109
Holdings Count | Holding 92
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 2,292,109,109  
Total number of portfolio holdings
     92  
Portfolio turnover rate
     2%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Information Technology
     20.4%  
Financials
     14.9%  
Health Care
     12.5%  
Industrials
     9.7%  
Communication Services
     8.8%  
Energy
     7.4%  
Consumer Staples
     7.3%  
Consumer Discretionary
     6.2%  
Utilities
     4.9%  
Materials
     3.8%  
Real Estate
     3.4%  
Short-Term Investment Fund
     0.7%  
Other Assets/Liabilities (Net)
     (0.0)%  
Total
     100.0%  
C000226971 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Dividend Equity Fund
Class Name INSTITUTIONAL CLASS
Trading Symbol TQCIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Dividend Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Institutional Class
   $33    0.65%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.65%
Net Assets $ 2,292,109,109
Holdings Count | Holding 92
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 2,292,109,109  
Total number of portfolio holdings
     92  
Portfolio turnover rate
     2%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)
 
 
Information Technology
     20.4%  
Financials
     14.9%  
Health Care
     12.5%  
Industrials
     9.7%  
Communication Services
     8.8%  
Energy
     7.4%  
Consumer Staples
     7.3%  
Consumer Discretionary
     6.2%  
Utilities
     4.9%  
Materials
     3.8%  
Real Estate
     3.4%  
Short-Term Investment Fund
     0.7%  
Other Assets/Liabilities (Net)
     (0.0)%  
Total
     100.0%  
C000229316 [Member]  
Shareholder Report [Line Items]  
Fund Name Touchstone Dividend Equity Fund
Class Name CLASS R6
Trading Symbol TQCRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Touchstone Dividend Equity Fund (“Fund”) for the period October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at touchstoneinvestments.com/mutual-funds. You can also request this information by contacting us at 800.543.0407.
Additional Information Phone Number 800.543.0407
Additional Information Website touchstoneinvestments.com/mutual-funds
Expenses [Text Block]
Fund Expenses
Class
  
Costs of a $10,000
investment
  
Costs paid as a percentage
of a $10,000 investment
Class R6
   $33    0.65%
Expenses Paid, Amount $ 33
Expense Ratio, Percent 0.65%
Net Assets $ 2,292,109,109
Holdings Count | Holding 92
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
   $ 2,292,109,109  
Total number of portfolio holdings
     92  
Portfolio turnover rate
     2%  
Holdings [Text Block]
Graphical Representation of Holdings
SECTOR ALLOCATION (% OF NET ASSETS)  
Information Technology
     20.4%  
Financials
     14.9%  
Health Care
     12.5%  
Industrials
     9.7%  
Communication Services
     8.8%  
Energy
     7.4%  
Consumer Staples
     7.3%  
Consumer Discretionary
     6.2%  
Utilities
     4.9%  
Materials
     3.8%  
Real Estate
     3.4%  
Short-Term Investment Fund
     0.7%  
Other Assets/Liabilities (Net)
     (0.0)%  
Total
     100.0%