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Shareholder Report
 6 Months Ended
May 31, 2025
USD ($)
$ / shares
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Advisors Series Trust
Entity Central Index Key 0001027596
Entity Investment Company Type N-1A
Document Period End Date May 31, 2025
Class A Shares  
Shareholder Report [Line Items]  
Fund Name Medalist Partners MBS Total Return Fund
Class Name Class A Shares
Trading Symbol SEMOX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Medalist Partners MBS Total Return Fund for the period of December 1, 2024, to May 31, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://medalistpartnersfunds.com/fund-documents/. You can also request this information by contacting us at 1-855-736-7799.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-855-736-7799
Additional Information Website https://medalistpartnersfunds.com/fund-documents/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Class A
$59
1.16%
[1]
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.16%
Updated Performance Information Location [Text Block]
Visit https://medalistpartnersfunds.com/fund-documents/ for more recent performance information.
Net Assets $ 303,460,261
Holdings Count | $ / shares 153
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2025)
Net Assets
$303,460,261
Number of Holdings
153
Portfolio Turnover
40%
Holdings [Text Block]
image
Updated Prospectus Web Address https://medalistpartnersfunds.com/fund-documents/
Investor Share Class  
Shareholder Report [Line Items]  
Fund Name Medalist Partners MBS Total Return Fund
Class Name Investor Share Class
Trading Symbol SEMPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Medalist Partners MBS Total Return Fund for the period of December 1, 2024, to May 31, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://medalistpartnersfunds.com/fund-documents/. You can also request this information by contacting us at 1-855-736-7799.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-855-736-7799
Additional Information Website https://medalistpartnersfunds.com/fund-documents/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Investor Class
$59
1.16%
[2]
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.16%
Updated Performance Information Location [Text Block]
Visit https://medalistpartnersfunds.com/fund-documents/ for more recent performance information.
Net Assets $ 303,460,261
Holdings Count | $ / shares 153
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2025)
Net Assets
$303,460,261
Number of Holdings
153
Portfolio Turnover
40%
Holdings [Text Block]
image
Updated Prospectus Web Address https://medalistpartnersfunds.com/fund-documents/
Institutional Share Class  
Shareholder Report [Line Items]  
Fund Name Medalist Partners MBS Total Return Fund
Class Name Institutional Share Class
Trading Symbol SEMMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Medalist Partners MBS Total Return Fund for the period of December 1, 2024, to May 31, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://medalistpartnersfunds.com/fund-documents/. You can also request this information by contacting us at 1-855-736-7799.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-855-736-7799
Additional Information Website https://medalistpartnersfunds.com/fund-documents/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Institutional Class
$46
0.91%
[3]
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.91%
Updated Performance Information Location [Text Block]
Visit https://medalistpartnersfunds.com/fund-documents/ for more recent performance information.
Net Assets $ 303,460,261
Holdings Count | $ / shares 153
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2025)
Net Assets
$303,460,261
Number of Holdings
153
Portfolio Turnover
40%
Holdings [Text Block]
image
Updated Prospectus Web Address https://medalistpartnersfunds.com/fund-documents/
Investor Share Class  
Shareholder Report [Line Items]  
Fund Name Medalist Partners Short Duration Fund
Class Name Investor Share Class
Trading Symbol SEMRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Medalist Partners Short Duration Fund for the period of December 1, 2024, to May 31, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://medalistpartnersfunds.com/fund-documents/. You can also request this information by contacting us at 1-855-736-7799.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-855-736-7799
Additional Information Website https://medalistpartnersfunds.com/fund-documents/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Investor Class
$43
0.85%
[4]
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.85%
Updated Performance Information Location [Text Block]
Visit https://medalistpartnersfunds.com/fund-documents/ for more recent performance information.
Net Assets $ 372,952,412
Holdings Count | $ / shares 166
Investment Company Portfolio Turnover 47.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2025)
Net Assets
$372,952,412
Number of Holdings
166
Portfolio Turnover
47%
Holdings [Text Block]
image
Updated Prospectus Web Address https://medalistpartnersfunds.com/fund-documents/
Institutional Share Class  
Shareholder Report [Line Items]  
Fund Name Medalist Partners Short Duration Fund
Class Name Institutional Share Class
Trading Symbol SEMIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Medalist Partners Short Duration Fund for the period of December 1, 2024, to May 31, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://medalistpartnersfunds.com/fund-documents/. You can also request this information by contacting us at 1-855-736-7799.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-855-736-7799
Additional Information Website https://medalistpartnersfunds.com/fund-documents/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment*
Institutional Class
$30
0.60%
[5]
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.60%
Updated Performance Information Location [Text Block]
Visit https://medalistpartnersfunds.com/fund-documents/ for more recent performance information.
Net Assets $ 372,952,412
Holdings Count | $ / shares 166
Investment Company Portfolio Turnover 47.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2025)
Net Assets
$372,952,412
Number of Holdings
166
Portfolio Turnover
47%
Holdings [Text Block]
image
Updated Prospectus Web Address https://medalistpartnersfunds.com/fund-documents/
[1]
* Annualized
[2]
* Annualized
[3]
* Annualized
[4]
* Annualized
[5]
* Annualized