Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Period End Date	dei_DocumentPeriodEndDate	Sep. 30, 2022
Registrant Name	dei_EntityRegistrantName	TOUCHSTONE FUNDS GROUP TRUST
CIK	dei_EntityCentralIndexKey	0000914243
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Jan. 26, 2023
Document Effective Date	dei_DocumentEffectiveDate	Jan. 27, 2023
Prospectus Date	rr_ProspectusDate	Jan. 27, 2023
Entity Inv Company Type	dei_EntityInvCompanyType	N-1A
Touchstone Active Bond Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOBAX
Touchstone Active Bond Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TODCX
Touchstone Active Bond Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOBYX
Touchstone Active Bond Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TOBIX
Touchstone Anti-Benchmark International Core Equity Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TYBAX
Touchstone Anti-Benchmark International Core Equity Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TIABX
Touchstone Ares Credit Opportunities Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMARX
Touchstone Ares Credit Opportunities Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMACX
Touchstone Ares Credit Opportunities Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMAYX
Touchstone Ares Credit Opportunities Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TARBX
Touchstone Dividend Equity Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TQCAX
Touchstone Dividend Equity Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TQCCX
Touchstone Dividend Equity Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TQCYX
Touchstone Dividend Equity Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TQCIX
Touchstone Dividend Equity Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TQCRX
Touchstone High Yield Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	THYAX
Touchstone High Yield Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	THYCX
Touchstone High Yield Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	THYYX
Touchstone High Yield Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	THIYX
Touchstone Impact Bond Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TCPAX
Touchstone Impact Bond Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TCPCX
Touchstone Impact Bond Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TCPYX
Touchstone Impact Bond Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TCPNX
Touchstone Impact Bond Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TIMPX
Touchstone International ESG Equity Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TPYAX
Touchstone International ESG Equity Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TPYCX
Touchstone International ESG Equity Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TPYYX
Touchstone International ESG Equity Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TPYIX
Touchstone Mid Cap Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMAPX
Touchstone Mid Cap Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMCJX
Touchstone Mid Cap Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMCPX
Touchstone Mid Cap Fund \| Class Z
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMCTX
Touchstone Mid Cap Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMPRX
Touchstone Mid Cap Value Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TCVAX
Touchstone Mid Cap Value Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TMFCX
Touchstone Mid Cap Value Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TCVYX
Touchstone Mid Cap Value Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TCVIX
Touchstone Sands Capital Select Growth Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSNAX
Touchstone Sands Capital Select Growth Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSNCX
Touchstone Sands Capital Select Growth Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	CFSIX
Touchstone Sands Capital Select Growth Fund \| Class Z
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	PTSGX
Touchstone Sands Capital Select Growth Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TISNX
Touchstone Sands Capital Select Growth Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSNRX
Touchstone Small Cap Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSFAX
Touchstone Small Cap Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSFCX
Touchstone Small Cap Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSFYX
Touchstone Small Cap Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSFIX
Touchstone Small Cap Value Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TVOAX
Touchstone Small Cap Value Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TVOCX
Touchstone Small Cap Value Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TVOYX
Touchstone Small Cap Value Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TVOIX
Touchstone Ultra Short Duration Fixed Income Fund \| Class A
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSDAX
Touchstone Ultra Short Duration Fixed Income Fund \| Class C
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSDCX
Touchstone Ultra Short Duration Fixed Income Fund \| Class S
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	SSSGX
Touchstone Ultra Short Duration Fixed Income Fund \| Class Y
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSYYX
Touchstone Ultra Short Duration Fixed Income Fund \| Class Z
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSDOX
Touchstone Ultra Short Duration Fixed Income Fund \| Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TSDIX

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

No definition available.

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- Definition

The date the document was made available and submitted, in YYYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.

+ References

No definition available.

+ Details

Name:	dei_DocumentCreationDate
Namespace Prefix:	dei_
Data Type:	xbrli:dateItemType
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Period Type:	duration

- Definition

The date when a document, upon receipt and acceptance, becomes officially effective, in YYYY-MM-DD format. Usually it is a system-assigned date time value, but it may be declared by the submitter in some cases.

+ References

No definition available.

+ Details

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Namespace Prefix:	dei_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

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Namespace Prefix:	dei_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:	dei_DocumentType
Namespace Prefix:	dei_
Data Type:	dei:submissionTypeItemType
Balance Type:	na
Period Type:	duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation 12B
-Number 240
-Section 12
-Subsection b-2

+ Details

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Namespace Prefix:	dei_
Data Type:	dei:centralIndexKeyItemType
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Period Type:	duration

- Definition

One of: N-1A (Mutual Fund), N-1 (Open-End Separate Account with No Variable Annuities), N-2 (Closed-End Investment Company), N-3 (Separate Account Registered as Open-End Management Investment Company), N-4 (Variable Annuity UIT Separate Account), N-5 (Small Business Investment Company), N-6 (Variable Life UIT Separate Account), S-1 or S-3 (Face Amount Certificate Company), S-6 (UIT, Non-Insurance Product).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-T
-Number 232
-Section 313

+ Details

Name:	dei_EntityInvCompanyType
Namespace Prefix:	dei_
Data Type:	dei:invCompanyType
Balance Type:	na
Period Type:	duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation 12B
-Number 240
-Section 12
-Subsection b-2

+ Details

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Namespace Prefix:	dei_
Data Type:	xbrli:normalizedStringItemType
Balance Type:	na
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- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:	dei_TradingSymbol
Namespace Prefix:	dei_
Data Type:	dei:tradingSymbolItemType
Balance Type:	na
Period Type:	duration

- Definition

The date of the prospectus.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 1
-Subsection a
-Paragraph 3

+ Details

Name:	rr_ProspectusDate
Namespace Prefix:	rr_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	rr_RiskReturnAbstract
Namespace Prefix:	rr_
Data Type:	xbrli:stringItemType
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Period Type:	duration