| Label |
Element |
Value |
| Risk/Return: |
rr_RiskReturnAbstract |
|
| Document Type |
dei_DocumentType |
497 |
| Document Period End Date |
dei_DocumentPeriodEndDate |
Jan. 30, 2015 |
| Entity Registrant Name |
dei_EntityRegistrantName |
TOUCHSTONE INVESTMENT TRUST |
| Entity Central Index Key |
dei_EntityCentralIndexKey |
0000066117 |
| Amendment Flag |
dei_AmendmentFlag |
false |
| Document Creation Date |
dei_DocumentCreationDate |
Feb. 19, 2015 |
| Document Effective Date |
dei_DocumentEffectiveDate |
Feb. 19, 2015 |
| Prospectus Date |
rr_ProspectusDate |
Jan. 30, 2015 |
| Touchstone Active Bond Fund (Prospectus Summary) | Touchstone Active Bond Fund | Class A |
|
|
| Risk/Return: |
rr_RiskReturnAbstract |
|
| Trading Symbol |
dei_TradingSymbol |
TOBAX |
| Touchstone Active Bond Fund (Prospectus Summary) | Touchstone Active Bond Fund | Class C |
|
|
| Risk/Return: |
rr_RiskReturnAbstract |
|
| Trading Symbol |
dei_TradingSymbol |
TODCX |
| Touchstone Active Bond Fund (Prospectus Summary) | Touchstone Active Bond Fund | Class Y |
|
|
| Risk/Return: |
rr_RiskReturnAbstract |
|
| Trading Symbol |
dei_TradingSymbol |
TOBYX |
| Touchstone Active Bond Fund (Prospectus Summary) | Touchstone Active Bond Fund | Institutional |
|
|
| Risk/Return: |
rr_RiskReturnAbstract |
|
| Trading Symbol |
dei_TradingSymbol |
TOBIX |