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Shareholder Report
 6 Months Ended
May 31, 2024
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, 2024
Managed Account Completion Shares  
Shareholder Report [Line Items]  
Fund Name PIA BBB Bond Fund
Class Name PIA BBB Bond Fund
Trading Symbol PBBBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the PIA BBB Bond Fund for the period of December 1, 2023, to May 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.pacificincome.com/mutual-funds/. You can also request this information by contacting us at 1-800-251-1970.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-800-251-1970
Additional Information Website https://www.pacificincome.com/mutual-funds/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
PIA BBB Bond Fund
$9
0.17%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17%
Updated Performance Information Location [Text Block]
Visit https://www.pacificincome.com/mutual-funds/ for more recent performance information.
Net Assets $ 202,736,530
Holdings Count | $ / shares 297
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2024)
Net Assets
$202,736,530
Number of Holdings
297
Portfolio Turnover
6%
Average Credit Quality
BBB
Effective Duration
6.80 yrs
Weighted Average Maturity
11.00 yrs
Weighted Average Life
10.67 yrs
Distribution Yield
4.21%
30-Day SEC Yield
5.55%
30-Day SEC Yield Unsubsidized
5.55%
Holdings [Text Block]
image
Top 10 Issuers
(%)
Verizon Communications, Inc.
2.4%
AT&T, Inc.
2.4%
Oracle Corp.
2.2%
CVS Health Corp.
1.8%
Pacific Gas and Electric Co.
1.6%
Mexico Government International Bond
1.6%
T-Mobile USA, Inc.
1.5%
Boeing Co.
1.5%
Amgen, Inc.
1.5%
General Motors Financial Co., Inc.
1.5%
Updated Prospectus Web Address https://www.pacificincome.com/mutual-funds/
Managed Account Completion Shares  
Shareholder Report [Line Items]  
Fund Name PIA MBS Bond Fund
Class Name PIA MBS Bond Fund
Trading Symbol PMTGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the PIA MBS Bond Fund for the period of December 1, 2023, to May 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.pacificincome.com/mutual-funds/. You can also request this information by contacting us at 1-800-251-1970.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-800-251-1970
Additional Information Website https://www.pacificincome.com/mutual-funds/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
PIA MBS Bond Fund
$13
0.25%
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25%
Updated Performance Information Location [Text Block]
Visit https://www.pacificincome.com/mutual-funds/ for more recent performance information.
Net Assets $ 88,571,743
Holdings Count | $ / shares 79
Investment Company Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2024)
Net Assets
$88,571,743
Number of Holdings
79
Portfolio Turnover
11%
Average Credit Quality
AAA
Effective Duration
5.70 yrs
Weighted Average Maturity
25.60 yrs
Weighted Average Life
8.70 yrs
Distribution Yield
4.13%
30-Day SEC Yield
3.87%
30-Day SEC Yield Unsubsidized
3.89%
Holdings [Text Block]
image
Top 10 Issuers
(%)
FHLMC
37.9%
FNMA
37.1%
GNMA
16.9%
U.S. Treasury Bill
2.3%
Cold Storage Trust
1.7%
CF Hippolyta Issuer LLC
1.4%
Fidelity Government Portfolio
1.2%
SAFCO Auto Receivables Trust
0.6%
BX Trust
0.5%
Material Fund Change [Text Block]
HOW HAS THE FUND CHANGED?
This is a summary of certain changes to the Fund since December 1, 2023. For more complete information, you may review the Fund’s prospectus, dated March 31, 2024 at https://www.pacificincome.com/mutual-funds/ or upon request at 1-800-251-1970.
Updated Prospectus Phone Number 1-800-251-1970
Updated Prospectus Web Address https://www.pacificincome.com/mutual-funds/https://www.pacificincome.com/mutual-funds/
Managed Account Completion Shares  
Shareholder Report [Line Items]  
Fund Name PIA High Yield MACS Fund
Class Name PIA High Yield MACS Fund
Trading Symbol PIAMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the PIA High Yield MACS Fund for the period of December 1, 2023, to May 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.pacificincome.com/mutual-funds/. You can also request this information by contacting us at 1-800-251-1970.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-800-251-1970
Additional Information Website https://www.pacificincome.com/mutual-funds/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
PIA High Yield MACS Fund
$9
0.17%
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17%
Updated Performance Information Location [Text Block]
Visit https://www.pacificincome.com/mutual-funds/ for more recent performance information.
Net Assets $ 169,604,664
Holdings Count | $ / shares 107
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2024)
Net Assets
$169,604,664
Number of Holdings
107
Portfolio Turnover
15%
Average Credit Quality
B
Effective Duration
2.90 yrs
Weighted Average Maturity
4.10 yrs
Weighted Average Life
4.10 yrs
Distribution Yield
9.25%
30-Day SEC Yield
10.05%
30-Day SEC Yield Unsubsidized
10.05%
Holdings [Text Block]
image
Top 10 Issuers
(%)
Fidelity Government Portfolio
5.4%
Alta Equipment Group, Inc.
2.1%
TKC Holdings, Inc.
1.7%
Verde Purchaser LLC
1.7%
Summit Midstream Holdings LLC / Summit Midstream Finance Corp.
1.6%
Rocket Software, Inc.
1.5%
GPD Cos., Inc.
1.5%
ITT Holdings LLC
1.5%
TMS International Corp./DE
1.4%
VistaJet Malta Finance PLC / Vista Management Holding, Inc.
1.4%
Updated Prospectus Web Address https://www.pacificincome.com/mutual-funds/
Institutional Class  
Shareholder Report [Line Items]  
Fund Name PIA High Yield Fund
Class Name PIA High Yield Fund
Trading Symbol PHYSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the PIA High Yield Fund for the period of December 1, 2023, to May 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.pacificincome.com/mutual-funds/. You can also request this information by contacting us at 1-800-251-1970.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-800-251-1970
Additional Information Website https://www.pacificincome.com/mutual-funds/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
PIA High Yield Fund
$44
0.86%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.86%
Updated Performance Information Location [Text Block]
Visit https://www.pacificincome.com/mutual-funds/ for more recent performance information.
Net Assets $ 61,993,702
Holdings Count | $ / shares 106
Investment Company Portfolio Turnover 17.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2024)
Net Assets
$61,993,702
Number of Holdings
106
Portfolio Turnover
17%
Average Credit Quality
B
Effective Duration
2.90 yrs
Weighted Average Maturity
4.20 yrs
Weighted Average Life
4.20 yrs
Distribution Yield
8.45%
30-Day SEC Yield
9.38%
30-Day SEC Yield Unsubsidized
9.24%
Holdings [Text Block]
image
Top 10 Issuers
(%)
Alta Equipment Group, Inc.
2.1%
Fidelity Government Portfolio
2.0%
Summit Midstream Holdings LLC / Summit Midstream Finance Corp.
1.8%
TKC Holdings, Inc.
1.6%
ITT Holdings LLC
1.5%
Mercer International, Inc.
1.5%
TMS International Corp./DE
1.5%
Pitney Bowes, Inc.
1.5%
Verde Purchaser LLC
1.4%
Consolidated Energy Finance SA
1.4%
Updated Prospectus Web Address https://www.pacificincome.com/mutual-funds/
Advisor Class  
Shareholder Report [Line Items]  
Fund Name PIA Short Term Securities Fund
Class Name PIA Short Term Securities Fund
Trading Symbol PIASX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the PIA Short Term Securities Fund for the period of December 1, 2023, to May 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.pacificincome.com/mutual-funds/. You can also request this information by contacting us at 1-800-251-1970.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-800-251-1970
Additional Information Website https://www.pacificincome.com/mutual-funds/
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?  (based on a hypothetical $10,000 investment)
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
PIA Short Term Securities Fund
$20
0.39%
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.39%
Updated Performance Information Location [Text Block]
Visit https://www.pacificincome.com/mutual-funds/ for more recent performance information.
Net Assets $ 146,272,278
Holdings Count | $ / shares 110
Investment Company Portfolio Turnover 38.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of May 31, 2024)
Net Assets
$146,272,278
Number of Holdings
110
Portfolio Turnover
38%
Average Credit Quality
A
Effective Duration
1.20 yrs
Weighted Average Maturity
2.80 yrs
Weighted Average Life
1.40 yrs
Distribution Yield
5.12%
30-Day SEC Yield
5.11%
30-Day SEC Yield Unsubsidized
5.10%
Holdings [Text Block]
image
Top 10 Issuers
(%)
U.S. Treasury Note/Bond
14.9%
U.S. Treasury Bill
11.8%
Cold Storage Trust
4.4%
BX Trust
2.7%
AEGON Funding Co. LLC
2.0%
Ares Capital Corp.
1.4%
Camden Property Trust
1.4%
Carrier Global Corp.
1.4%
NextEra Energy Capital Holdings, Inc.
1.4%
Citizens Bank NA
1.4%
Updated Prospectus Web Address https://www.pacificincome.com/mutual-funds/