v3.26.1
Shareholder Report
 6 Months Ended
May 31, 2026
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, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
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, 2025, to May 31, 2026.
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
$56
1.12%
[1]
Expenses Paid, Amount $ 56
Expense Ratio, Percent 1.12%
Net Assets $ 358,390,228
Holdings Count | $ / shares 170
Investment Company Portfolio Turnover 39.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2026)
Net Assets
$358,390,228
Number of Holdings
170
Portfolio Turnover
39%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of May 31, 2026)*
Sector Breakdown  
image
 [2]
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, 2025, to May 31, 2026.
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
$44
0.87%
[3]
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.87%
Net Assets $ 358,390,228
Holdings Count | $ / shares 170
Investment Company Portfolio Turnover 39.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2026)
Net Assets
$358,390,228
Number of Holdings
170
Portfolio Turnover
39%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of May 31, 2026)*
Sector Breakdown  
image
 [4]
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, 2025, to May 31, 2026.
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
$56
1.12%
[5]
Expenses Paid, Amount $ 56
Expense Ratio, Percent 1.12%
Net Assets $ 358,390,228
Holdings Count | $ / shares 170
Investment Company Portfolio Turnover 39.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2026)
Net Assets
$358,390,228
Number of Holdings
170
Portfolio Turnover
39%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of May 31, 2026)*
Sector Breakdown  
image
 [6]
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, 2025, to May 31, 2026.
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%
[7]
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.60%
Net Assets $ 585,390,609
Holdings Count | $ / shares 184
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2026)
Net Assets
$585,390,609
Number of Holdings
184
Portfolio Turnover
45%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of May 31, 2026)*
Sector Breakdown  
image
 [8]
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, 2025, to May 31, 2026.
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%
[9]
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.85%
Net Assets $ 585,390,609
Holdings Count | $ / shares 184
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2026)
Net Assets
$585,390,609
Number of Holdings
184
Portfolio Turnover
45%
Holdings [Text Block]
WHAT DID THE FUND INVEST IN? (as of May 31, 2026)*
Sector Breakdown  
image
 [10]
Updated Prospectus Web Address https://medalistpartnersfunds.com/fund-documents/
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