Label	Element	Value
Prospectus [Line Items]	rr_ProspectusLineItems
Document Type	dei_DocumentType	497
Document Period End Date	dei_DocumentPeriodEndDate	Apr. 30, 2019
Entity Registrant Name	dei_EntityRegistrantName	FINANCIAL INVESTORS TRUST
Entity Central Index Key	dei_EntityCentralIndexKey	0000915802
Amendment Flag	dei_AmendmentFlag	false
Entity Inv Company Type	dei_EntityInvCompanyType	N-1A
Document Creation Date	dei_DocumentCreationDate	Apr. 10, 2020
Document Effective Date	dei_DocumentEffectiveDate	Apr. 10, 2020
Prospectus Date	rr_ProspectusDate	Aug. 31, 2019
Highland Resolute Fund
Prospectus [Line Items]	rr_ProspectusLineItems
Supplement to Prospectus [Text Block]	rr_SupplementToProspectusTextBlock	FINANCIAL INVESTORS TRUST HIGHLAND RESOLUTE FUND (the "Fund") SUPPLEMENT DATED APRIL 10, 2020 TO THE PROSPECTUS AND STATEMENT OF ADDITIONAL INFORMATION DATED AUGUST 31, 2019, AS SUPPLEMENTED Effective as of the opening of business on April 13, 2020, Incline Global Management, LLC ("Incline") will no longer serve as an investment sub-adviser to the Fund. Therefore, all references to Incline in the Fund's Prospectus and Statement of Additional Information are hereby deleted as of such date. As of that date, Chatham Asset Management, LLC and Parametric Portfolio Associates LLC will remain as investment sub-advisers to the Fund. For more information, please contact the Fund at (855) 268-2242. * * * * PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

If the value is true, then the document is an amendment to previously-filed/accepted document.

No definition available.

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- Definition

The date the document was made available and submitted, in CCYY-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

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- Definition

The date when a document, upon receipt and acceptance, becomes officially effective, in CCYY-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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- Definition

The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.

+ References

No definition available.

+ Details

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- 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

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- 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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- 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

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- 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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- 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

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- References

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

+ Details

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- Definition

This element contains the text of a prospectus supplement (submission type 497) not already contained in an element containing amended text or other data from a previous submission.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form
-Number N-1A

+ Details

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