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Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Document Type dei_DocumentType 497
Document Period End Date dei_DocumentPeriodEndDate Sep. 30, 2019
Entity Registrant Name dei_EntityRegistrantName ADVISORS SERIES TRUST
Entity Central Index Key dei_EntityCentralIndexKey 0001027596
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jun. 30, 2020
Document Effective Date dei_DocumentEffectiveDate Jun. 30, 2020
Prospectus Date rr_ProspectusDate Feb. 28, 2020
Entity Inv Company Type dei_EntityInvCompanyType N-1A
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
Huber Capital Equity Income Fund
Investor Class: HULIX
Institutional Class: HULEX

Huber Capital Small Cap Value Fund
Investor Class (HUSIX)
Institutional Class (HUSEX)

Huber Capital Diversified Large Cap Value Fund
Investor Class (HUDIX)
Institutional Class (HUDEX)

Huber Capital Mid Cap Value Fund
Investor Class (HUMDX)
Institutional Class (HUMEX)

Supplement dated June 30, 2020, to the
Statutory Prospectus dated February 28, 2020


The following disclosure is added to the end of the first paragraph of “Principal Investment Strategies” on page 2 of the statutory prospectus.

While the Equity Income Fund is diversified for purposes of the Investment Company Act of 1940, the Fund may, at times, hold the securities of a small number of issuers.

The following disclosure is added to “Principal Risks” on page 2 of the statutory prospectus.

Focus Risk.  At such times the Equity Income Fund holds the securities of a small number of issuers, it may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Equity Income Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.

The following disclosure is added to the end of the first paragraph of “Principal Investment Strategies” on page 8 of the statutory prospectus.

While the Small Cap Value Fund is diversified for purposes of the Investment Company Act of 1940, the Fund may, at times, hold the securities of a small number of issuers.

The following disclosure is added to “Principal Risks” on page 8 of the statutory prospectus.

Focus Risk.  At such times the Small Cap Value Fund holds the securities of a small number of issuers, it may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Small Cap Value Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.

The following disclosure is added to the end of the first paragraph of “Principal Investment Strategies” on page 14 of the statutory prospectus.

While the Diversified Large Cap Value Fund is diversified for purposes of the Investment Company Act of 1940, the Fund may, at times, hold the securities of a small number of issuers.

The following disclosure is added to “Principal Risks” on page 14 of the statutory prospectus.

Focus Risk.  At such times the Diversified Large Cap Value Fund holds the securities of a small number of issuers, it may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Diversified Large Cap Value Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.

The following disclosure is added to the end of the first paragraph of “Principal Investment Strategies” on page 20 of the statutory prospectus.

While the Mid Cap Value Fund is diversified for purposes of the Investment Company Act of 1940, the Fund may, at times, hold the securities of a small number of issuers.

The following disclosure is added to “Principal Risks” on page 21 of the statutory prospectus.

Focus Risk.  At such times the Mid Cap Value Fund holds the securities of a small number of issuers, it may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Mid Cap Value Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Supplement Closing [Text Block] ck0001027596_SupplementClosingTextBlock
Please retain this supplement for your reference.
Huber Capital Equity Income Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Huber Capital Equity Income Fund
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
While the Equity Income Fund is diversified for purposes of the Investment Company Act of 1940, the Fund may, at times, hold the securities of a small number of issuers.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
Focus Risk.  At such times the Equity Income Fund holds the securities of a small number of issuers, it may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Equity Income Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Huber Capital Equity Income Fund | Investor Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol HULIX
Huber Capital Equity Income Fund | Institutional Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol HULEX
Huber Capital Small Cap Value Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Huber Capital Small Cap Value Fund
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
While the Small Cap Value Fund is diversified for purposes of the Investment Company Act of 1940, the Fund may, at times, hold the securities of a small number of issuers.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
Focus Risk.  At such times the Small Cap Value Fund holds the securities of a small number of issuers, it may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Small Cap Value Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Huber Capital Small Cap Value Fund | Investor Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol HUSIX
Huber Capital Small Cap Value Fund | Institutional Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol HUSEX
Huber Capital Diversified Large Cap Value Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Huber Capital Diversified Large Cap Value Fund
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
While the Diversified Large Cap Value Fund is diversified for purposes of the Investment Company Act of 1940, the Fund may, at times, hold the securities of a small number of issuers.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
Focus Risk.  At such times the Diversified Large Cap Value Fund holds the securities of a small number of issuers, it may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Diversified Large Cap Value Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Huber Capital Diversified Large Cap Value Fund | Investor Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol HUDIX
Huber Capital Diversified Large Cap Value Fund | Institutional Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol HUDEX
Huber Capital Mid Cap Value Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Huber Capital Mid Cap Value Fund
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
While the Mid Cap Value Fund is diversified for purposes of the Investment Company Act of 1940, the Fund may, at times, hold the securities of a small number of issuers.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
Focus Risk.  At such times the Mid Cap Value Fund holds the securities of a small number of issuers, it may be more exposed to the risks associated with and developments affecting an individual issuer or a smaller number of issuers than a fund that invests more widely. This may increase the Mid Cap Value Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Huber Capital Mid Cap Value Fund | Investor Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol HUMDX
Huber Capital Mid Cap Value Fund | Institutional Class  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol HUMEX