v3.25.1
Shareholder Report
 6 Months Ended
Feb. 28, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name AIM Treasurer's Series Trust (Invesco Treasurer's Series Trust)
Entity Central Index Key 0000828806
Entity Investment Company Type N-1A
Document Period End Date Feb. 28, 2025
C000000397 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Premier Portfolio
Class Name Investor Class
Trading Symbol IMRXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Premier Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Premier Portfolio
(Investor Class)		 $9 0.18%†
*
Annualized.
​†
Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.18% [1],[2]
Net Assets $ 8,692,034,410
Holdings Count | Holding 120
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $8,692,034,410
Total number of portfolio holdings 120
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 51.1%
8-30 5.8%
31-60 9.9%
61-90 4.4%
91-180 16.7%
181+ 12.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000029748 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Premier Portfolio
Class Name Institutional Class
Trading Symbol IPPXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Premier Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Premier Portfolio
(Institutional Class)		 $9 0.18%†
*
Annualized.
​†
Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.18% [3],[4]
Net Assets $ 8,692,034,410
Holdings Count | Holding 120
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $8,692,034,410
Total number of portfolio holdings 120
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 51.1%
8-30 5.8%
31-60 9.9%
61-90 4.4%
91-180 16.7%
181+ 12.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000173346 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Premier Portfolio
Class Name Private Investment Class
Trading Symbol IPTXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Premier Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Premier Portfolio
(Private Investment Class)		 $24 0.48%†
*
Annualized.
​†
Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
Expenses Paid, Amount $ 24
Expense Ratio, Percent 0.48% [5],[6]
Net Assets $ 8,692,034,410
Holdings Count | Holding 120
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $8,692,034,410
Total number of portfolio holdings 120
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 51.1%
8-30 5.8%
31-60 9.9%
61-90 4.4%
91-180 16.7%
181+ 12.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000173345 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Premier Portfolio
Class Name Personal Investment Class
Trading Symbol IPVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Premier Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Premier Portfolio
(Personal Investment Class)		 $37 0.73%†
*
Annualized.
​†
Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.73% [7],[8]
Net Assets $ 8,692,034,410
Holdings Count | Holding 120
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $8,692,034,410
Total number of portfolio holdings 120
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 51.1%
8-30 5.8%
31-60 9.9%
61-90 4.4%
91-180 16.7%
181+ 12.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000173347 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Premier Portfolio
Class Name Reserve Class
Trading Symbol IRVXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Premier Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Premier Portfolio
(Reserve Class)		 $53 1.05%†
*
Annualized.
​†
Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
Expenses Paid, Amount $ 53
Expense Ratio, Percent 1.05% [9],[10]
Net Assets $ 8,692,034,410
Holdings Count | Holding 120
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $8,692,034,410
Total number of portfolio holdings 120
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 51.1%
8-30 5.8%
31-60 9.9%
61-90 4.4%
91-180 16.7%
181+ 12.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000173348 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Premier Portfolio
Class Name Resource Class
Trading Symbol IRCXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Premier Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Premier Portfolio
(Resource Class)		 $17 0.34%†
*
Annualized.
​†
Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34% [11],[12]
Net Assets $ 8,692,034,410
Holdings Count | Holding 120
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $8,692,034,410
Total number of portfolio holdings 120
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 51.1%
8-30 5.8%
31-60 9.9%
61-90 4.4%
91-180 16.7%
181+ 12.1%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000029750 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Premier U.S. Government Money Portfolio
Class Name Institutional Class
Trading Symbol IUGXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Premier U.S. Government Money Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Premier U.S. Government Money Portfolio
(Institutional Class)		 $9 0.18%†
*
Annualized.
​†
Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.18% [13],[14]
Net Assets $ 21,744,429,179
Holdings Count | Holding 128
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $21,744,429,179
Total number of portfolio holdings 128
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 67.1%
8-30 0.5%
31-60 4.4%
61-90 2.7%
91-180 6.4%
181+ 18.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
C000000400 [Member]  
Shareholder Report [Line Items]  
Fund Name Invesco Premier U.S. Government Money Portfolio
Class Name Investor Class
Trading Symbol FUGXX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Invesco Premier U.S. Government Money Portfolio (the “Fund”) for the period September 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at invesco.com/reports. You can also request this information by contacting us at (800) 959-4246.
Additional Information Phone Number (800) 959-4246
Additional Information Website invesco.com/reports
Expenses [Text Block]
What Were The Fund Costs For The Last Six Months ?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage
of a $10,000 investment*
Invesco Premier U.S. Government Money Portfolio
(Investor Class)		 $9 0.18%†
*
Annualized.
​†
Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.18% [15],[16]
Net Assets $ 21,744,429,179
Holdings Count | Holding 128
Additional Fund Statistics [Text Block]
What Are Key Statistics About The Fund?
(as of February 28, 2025)
Fund net assets $21,744,429,179
Total number of portfolio holdings 128
Holdings [Text Block]
What Comprised The Fund's Holdings?
(as of February 28, 2025)
Composition by maturity, in days
(% of total investments)*
1-7 67.1%
8-30 0.5%
31-60 4.4%
61-90 2.7%
91-180 6.4%
181+ 18.9%
* The number of days to maturity of each holding is determined in accordance with the provisions of Rule 2a-7 under the Investment Company Act of 1940.
[1] Annualized.
[2] Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[3] Annualized.
[4] Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[5] Annualized.
[6] Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[7] Annualized.
[8] Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[9] Annualized.
[10] Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[11] Annualized.
[12] Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[13] Annualized.
[14] Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.
[15] Annualized.
[16] Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.