XML 45 R2.htm IDEA: XBRL DOCUMENT v3.24.2.u1
Shareholder Report
 12 Months Ended
Jun. 30, 2024
USD ($)
$ / shares
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name PUTNAM FUNDS TRUST
Entity Central Index Key 0001005942
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2024
Class A  
Shareholder Report [Line Items]  
Fund Name Putnam Small Cap Growth Fund
Class Name Class A
Trading Symbol PNSAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Putnam Small Cap Growth Fund for the period July 1, 2023, to June 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 225-1581
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (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
$134
1.21%
Expenses Paid, Amount $ 134
Expense Ratio, Percent 1.21%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended June 30, 2024, Class A shares of Putnam Small Cap Growth Fund returned 22.16%. The Fund compares its performance to the Russell 2000 Growth Index, which returned 9.14% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
Security selections outside of the benchmark, including:
↑
Camtek, a manufacturer of semiconductor inspection equipment
↑
Nova, a provider of process control systems used in semiconductor manufacturing
↑
EMCOR Group, a construction and facilities services provider for a range of businesses
Top detractors from performance:
↓
Overweight position in Axcelis Technologies, a semiconductor equipment company
↓
Overweight position in medical device company InMode
↓
Out-of-benchmark position in Iridium Communications, a global satellite communications company
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended June 30, 2024
 
1 Year
5 Year
10 Year
Class A (without sales charge)
22.16
12.46
11.52
Class A (with sales charge)
15.14
11.14
10.86
Russell 3000 Index
23.13
14.14
12.15
Russell 2000 Growth Index
9.14
6.17
7.39
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at  (800) 225-1581 or visit https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at  www.franklintempletondatasources.com.
Net Assets $ 2,020,349,001
Holdings Count | $ / shares 94 [1]
Advisory Fees Paid, Amount $ 10,178,534
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2024)
Total Net Assets
$2,020,349,001
Total Number of Portfolio Holdings*
94
Total Management Fee Paid
$10,178,534
Portfolio Turnover Rate
40%
[1]
Holdings [Text Block]
image
 [2]
Material Fund Change [Text Block]
HOW HAS THE FUND CHANGED?
On May 31, 2023, Franklin Resources, Inc. (“Franklin Resources”) and Great-West Lifeco Inc., the parent company of Putnam U.S. Holdings I, LLC (“Putnam Holdings”), announced that they had entered into a definitive agreement for a subsidiary of Franklin Resources to acquire Putnam Holdings in a stock and cash transaction (the “Transaction”). The Transaction was completed on January 1, 2024. As part of the Transaction, your Fund’s investment advisor, Putnam Investment Management, LLC (“Putnam Management”), a wholly-owned subsidiary of Putnam Holdings, and your Fund’s sub-advisor, Putnam Investments Limited (“PIL”), an indirect, wholly-owned subsidiary of Putnam Holdings, became indirect, wholly-owned subsidiaries of Franklin Resources. In connection with the Transaction, shareholders of your Fund approved a new management contract with Putnam Management and a new sub-advisory contract with PIL. The new contracts are identical to the previous contracts, except for the effective dates, initial terms, updates to fund names as necessary to reflect previous name changes, and certain non-substantive changes.
Effective July 15, 2024, Franklin Advisers, Inc. (“Franklin Advisers”) was retained as a sub-adviser by Putnam Management for the Fund pursuant to a new subadvisory agreement between Franklin Advisers and Putnam Management. Both Putnam Management and Franklin Advisers are wholly-owned subsidiaries of Franklin Resources. Putnam Management will continue to serve as the Fund’s investment advisor and Putnam Investments Limited will continue to serve as a sub-advisor to the Fund.  
Effective June 30, 2024, the Fund’s portfolio managers are William Monroe and Tania Harsono.
This is a summary of certain changes to the Fund since July 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents  or upon request at  (800) 225-1581 or funddocuments@putnam.com.
Updated Prospectus Phone Number (800) 225-1581
Updated Prospectus Email Address funddocuments@putnam.com
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documentshttps://www.franklintempleton.com/regulatory-fund-documents
Class B  
Shareholder Report [Line Items]  
Fund Name Putnam Small Cap Growth Fund
Class Name Class B
Trading Symbol PNSBX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Putnam Small Cap Growth Fund for the period July 1, 2023, to June 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 225-1581
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (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 B
$217
1.96%
Expenses Paid, Amount $ 217
Expense Ratio, Percent 1.96%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended June 30, 2024, Class B shares of Putnam Small Cap Growth Fund returned 21.25%. The Fund compares its performance to the Russell 2000 Growth Index, which returned 9.14% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
Security selections outside of the benchmark, including:
↑
Camtek, a manufacturer of semiconductor inspection equipment
↑
Nova, a provider of process control systems used in semiconductor manufacturing
↑
EMCOR Group, a construction and facilities services provider for a range of businesses
Top detractors from performance:
↓
Overweight position in Axcelis Technologies, a semiconductor equipment company
↓
Overweight position in medical device company InMode
↓
Out-of-benchmark position in Iridium Communications, a global satellite communications company
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended June 30, 2024
 
1 Year
5 Year
10 Year
Class B (without sales charge)
21.25
11.62
10.85
Class B (with sales charge)
16.25
11.36
10.85
Russell 3000 Index
23.13
14.14
12.15
Russell 2000 Growth Index
9.14
6.17
7.39
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at  (800) 225-1581 or visit https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at  www.franklintempletondatasources.com.
Net Assets $ 2,020,349,001
Holdings Count | $ / shares 94 [3]
Advisory Fees Paid, Amount $ 10,178,534
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2024)
Total Net Assets
$2,020,349,001
Total Number of Portfolio Holdings*
94
Total Management Fee Paid
$10,178,534
Portfolio Turnover Rate
40%
[3]
Holdings [Text Block]
image
 [4]
Material Fund Change [Text Block]
HOW HAS THE FUND CHANGED?
On May 31, 2023, Franklin Resources, Inc. (“Franklin Resources”) and Great-West Lifeco Inc., the parent company of Putnam U.S. Holdings I, LLC (“Putnam Holdings”), announced that they had entered into a definitive agreement for a subsidiary of Franklin Resources to acquire Putnam Holdings in a stock and cash transaction (the “Transaction”). The Transaction was completed on January 1, 2024. As part of the Transaction, your Fund’s investment advisor, Putnam Investment Management, LLC (“Putnam Management”), a wholly-owned subsidiary of Putnam Holdings, and your Fund’s sub-advisor, Putnam Investments Limited (“PIL”), an indirect, wholly-owned subsidiary of Putnam Holdings, became indirect, wholly-owned subsidiaries of Franklin Resources. In connection with the Transaction, shareholders of your Fund approved a new management contract with Putnam Management and a new sub-advisory contract with PIL. The new contracts are identical to the previous contracts, except for the effective dates, initial terms, updates to fund names as necessary to reflect previous name changes, and certain non-substantive changes.
Effective July 15, 2024, Franklin Advisers, Inc. (“Franklin Advisers”) was retained as a sub-adviser by Putnam Management for the Fund pursuant to a new subadvisory agreement between Franklin Advisers and Putnam Management. Both Putnam Management and Franklin Advisers are wholly-owned subsidiaries of Franklin Resources. Putnam Management will continue to serve as the Fund’s investment advisor and Putnam Investments Limited will continue to serve as a sub-advisor to the Fund.  
Effective June 30, 2024, the Fund’s portfolio managers are William Monroe and Tania Harsono.
Effective September 5, 2024 (the “Conversion Date”), Class B shares of the Fund acquired prior to the Conversion Date will convert automatically to Class A shares.
This is a summary of certain changes to the Fund since July 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents  or upon request at  (800) 225-1581 or funddocuments@putnam.com.
Updated Prospectus Phone Number (800) 225-1581
Updated Prospectus Email Address funddocuments@putnam.com
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documentshttps://www.franklintempleton.com/regulatory-fund-documents
Class C  
Shareholder Report [Line Items]  
Fund Name Putnam Small Cap Growth Fund
Class Name Class C
Trading Symbol PNSCX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Putnam Small Cap Growth Fund for the period July 1, 2023, to June 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 225-1581
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (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 C
$217
1.96%
Expenses Paid, Amount $ 217
Expense Ratio, Percent 1.96%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended June 30, 2024, Class C shares of Putnam Small Cap Growth Fund returned 21.24%. The Fund compares its performance to the Russell 2000 Growth Index, which returned 9.14% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
Security selections outside of the benchmark, including:
↑
Camtek, a manufacturer of semiconductor inspection equipment
↑
Nova, a provider of process control systems used in semiconductor manufacturing
↑
EMCOR Group, a construction and facilities services provider for a range of businesses
Top detractors from performance:
↓
Overweight position in Axcelis Technologies, a semiconductor equipment company
↓
Overweight position in medical device company InMode
↓
Out-of-benchmark position in Iridium Communications, a global satellite communications company
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended June 30, 2024
 
1 Year
5 Year
10 Year
Class C (without sales charge)
21.24
11.62
10.86
Class C (with sales charge)
20.24
11.62
10.86
Russell 3000 Index
23.13
14.14
12.15
Russell 2000 Growth Index
9.14
6.17
7.39
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at  (800) 225-1581 or visit https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at  www.franklintempletondatasources.com.
Net Assets $ 2,020,349,001
Holdings Count | $ / shares 94 [5]
Advisory Fees Paid, Amount $ 10,178,534
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2024)
Total Net Assets
$2,020,349,001
Total Number of Portfolio Holdings*
94
Total Management Fee Paid
$10,178,534
Portfolio Turnover Rate
40%
[5]
Holdings [Text Block]
image
 [6]
Material Fund Change [Text Block]
HOW HAS THE FUND CHANGED?
On May 31, 2023, Franklin Resources, Inc. (“Franklin Resources”) and Great-West Lifeco Inc., the parent company of Putnam U.S. Holdings I, LLC (“Putnam Holdings”), announced that they had entered into a definitive agreement for a subsidiary of Franklin Resources to acquire Putnam Holdings in a stock and cash transaction (the “Transaction”). The Transaction was completed on January 1, 2024. As part of the Transaction, your Fund’s investment advisor, Putnam Investment Management, LLC (“Putnam Management”), a wholly-owned subsidiary of Putnam Holdings, and your Fund’s sub-advisor, Putnam Investments Limited (“PIL”), an indirect, wholly-owned subsidiary of Putnam Holdings, became indirect, wholly-owned subsidiaries of Franklin Resources. In connection with the Transaction, shareholders of your Fund approved a new management contract with Putnam Management and a new sub-advisory contract with PIL. The new contracts are identical to the previous contracts, except for the effective dates, initial terms, updates to fund names as necessary to reflect previous name changes, and certain non-substantive changes.
Effective July 15, 2024, Franklin Advisers, Inc. (“Franklin Advisers”) was retained as a sub-adviser by Putnam Management for the Fund pursuant to a new subadvisory agreement between Franklin Advisers and Putnam Management. Both Putnam Management and Franklin Advisers are wholly-owned subsidiaries of Franklin Resources. Putnam Management will continue to serve as the Fund’s investment advisor and Putnam Investments Limited will continue to serve as a sub-advisor to the Fund.  
Effective June 30, 2024, the Fund’s portfolio managers are William Monroe and Tania Harsono.
This is a summary of certain changes to the Fund since July 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents  or upon request at  (800) 225-1581 or funddocuments@putnam.com.
Updated Prospectus Phone Number (800) 225-1581
Updated Prospectus Email Address funddocuments@putnam.com
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documentshttps://www.franklintempleton.com/regulatory-fund-documents
Class R  
Shareholder Report [Line Items]  
Fund Name Putnam Small Cap Growth Fund
Class Name Class R
Trading Symbol PSGRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Putnam Small Cap Growth Fund for the period July 1, 2023, to June 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 225-1581
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (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 R
$162
1.46%
Expenses Paid, Amount $ 162
Expense Ratio, Percent 1.46%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended June 30, 2024, Class R shares of Putnam Small Cap Growth Fund returned 21.86%. The Fund compares its performance to the Russell 2000 Growth Index, which returned 9.14% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
Security selections outside of the benchmark, including:
↑
Camtek, a manufacturer of semiconductor inspection equipment
↑
Nova, a provider of process control systems used in semiconductor manufacturing
↑
EMCOR Group, a construction and facilities services provider for a range of businesses
Top detractors from performance:
↓
Overweight position in Axcelis Technologies, a semiconductor equipment company
↓
Overweight position in medical device company InMode
↓
Out-of-benchmark position in Iridium Communications, a global satellite communications company
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended June 30, 2024
 
1 Year
5 Year
10 Year
Class R (without sales charge)
21.86
12.18
11.24
Class R (with sales charge)
21.86
12.18
11.24
Russell 3000 Index
23.13
14.14
12.15
Russell 2000 Growth Index
9.14
6.17
7.39
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at  (800) 225-1581 or visit https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at  www.franklintempletondatasources.com.
Net Assets $ 2,020,349,001
Holdings Count | $ / shares 94 [7]
Advisory Fees Paid, Amount $ 10,178,534
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2024)
Total Net Assets
$2,020,349,001
Total Number of Portfolio Holdings*
94
Total Management Fee Paid
$10,178,534
Portfolio Turnover Rate
40%
[7]
Holdings [Text Block]
image
 [8]
Material Fund Change [Text Block]
HOW HAS THE FUND CHANGED?
On May 31, 2023, Franklin Resources, Inc. (“Franklin Resources”) and Great-West Lifeco Inc., the parent company of Putnam U.S. Holdings I, LLC (“Putnam Holdings”), announced that they had entered into a definitive agreement for a subsidiary of Franklin Resources to acquire Putnam Holdings in a stock and cash transaction (the “Transaction”). The Transaction was completed on January 1, 2024. As part of the Transaction, your Fund’s investment advisor, Putnam Investment Management, LLC (“Putnam Management”), a wholly-owned subsidiary of Putnam Holdings, and your Fund’s sub-advisor, Putnam Investments Limited (“PIL”), an indirect, wholly-owned subsidiary of Putnam Holdings, became indirect, wholly-owned subsidiaries of Franklin Resources. In connection with the Transaction, shareholders of your Fund approved a new management contract with Putnam Management and a new sub-advisory contract with PIL. The new contracts are identical to the previous contracts, except for the effective dates, initial terms, updates to fund names as necessary to reflect previous name changes, and certain non-substantive changes.
Effective July 15, 2024, Franklin Advisers, Inc. (“Franklin Advisers”) was retained as a sub-adviser by Putnam Management for the Fund pursuant to a new subadvisory agreement between Franklin Advisers and Putnam Management. Both Putnam Management and Franklin Advisers are wholly-owned subsidiaries of Franklin Resources. Putnam Management will continue to serve as the Fund’s investment advisor and Putnam Investments Limited will continue to serve as a sub-advisor to the Fund.  
Effective June 30, 2024, the Fund’s portfolio managers are William Monroe and Tania Harsono.
This is a summary of certain changes to the Fund since July 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents  or upon request at  (800) 225-1581 or funddocuments@putnam.com.
Updated Prospectus Phone Number (800) 225-1581
Updated Prospectus Email Address funddocuments@putnam.com
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documentshttps://www.franklintempleton.com/regulatory-fund-documents
Class R6  
Shareholder Report [Line Items]  
Fund Name Putnam Small Cap Growth Fund
Class Name Class R6
Trading Symbol PLKGX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Putnam Small Cap Growth Fund for the period July 1, 2023, to June 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 225-1581
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (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 R6
$90
0.81%
Expenses Paid, Amount $ 90
Expense Ratio, Percent 0.81%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended June 30, 2024, Class R6 shares of Putnam Small Cap Growth Fund returned 22.66%. The Fund compares its performance to the Russell 2000 Growth Index, which returned 9.14% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
Security selections outside of the benchmark, including:
↑
Camtek, a manufacturer of semiconductor inspection equipment
↑
Nova, a provider of process control systems used in semiconductor manufacturing
↑
EMCOR Group, a construction and facilities services provider for a range of businesses
Top detractors from performance:
↓
Overweight position in Axcelis Technologies, a semiconductor equipment company
↓
Overweight position in medical device company InMode
↓
Out-of-benchmark position in Iridium Communications, a global satellite communications company
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended June 30, 2024
 
1 Year
5 Year
10 Year
Class R6 (without sales charge)
22.66
12.91
11.96
Class R6 (with sales charge)
22.66
12.91
11.96
Russell 3000 Index
23.13
14.14
12.15
Russell 2000 Growth Index
9.14
6.17
7.39
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at  (800) 225-1581 or visit https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at  www.franklintempletondatasources.com.
Net Assets $ 2,020,349,001
Holdings Count | $ / shares 94 [9]
Advisory Fees Paid, Amount $ 10,178,534
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2024)
Total Net Assets
$2,020,349,001
Total Number of Portfolio Holdings*
94
Total Management Fee Paid
$10,178,534
Portfolio Turnover Rate
40%
[9]
Holdings [Text Block]
image
 [10]
Material Fund Change [Text Block]
HOW HAS THE FUND CHANGED?
On May 31, 2023, Franklin Resources, Inc. (“Franklin Resources”) and Great-West Lifeco Inc., the parent company of Putnam U.S. Holdings I, LLC (“Putnam Holdings”), announced that they had entered into a definitive agreement for a subsidiary of Franklin Resources to acquire Putnam Holdings in a stock and cash transaction (the “Transaction”). The Transaction was completed on January 1, 2024. As part of the Transaction, your Fund’s investment advisor, Putnam Investment Management, LLC (“Putnam Management”), a wholly-owned subsidiary of Putnam Holdings, and your Fund’s sub-advisor, Putnam Investments Limited (“PIL”), an indirect, wholly-owned subsidiary of Putnam Holdings, became indirect, wholly-owned subsidiaries of Franklin Resources. In connection with the Transaction, shareholders of your Fund approved a new management contract with Putnam Management and a new sub-advisory contract with PIL. The new contracts are identical to the previous contracts, except for the effective dates, initial terms, updates to fund names as necessary to reflect previous name changes, and certain non-substantive changes.
Effective July 15, 2024, Franklin Advisers, Inc. (“Franklin Advisers”) was retained as a sub-adviser by Putnam Management for the Fund pursuant to a new subadvisory agreement between Franklin Advisers and Putnam Management. Both Putnam Management and Franklin Advisers are wholly-owned subsidiaries of Franklin Resources. Putnam Management will continue to serve as the Fund’s investment advisor and Putnam Investments Limited will continue to serve as a sub-advisor to the Fund.  
Effective June 30, 2024, the Fund’s portfolio managers are William Monroe and Tania Harsono.
This is a summary of certain changes to the Fund since July 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents  or upon request at  (800) 225-1581 or funddocuments@putnam.com.
Updated Prospectus Phone Number (800) 225-1581
Updated Prospectus Email Address funddocuments@putnam.com
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documentshttps://www.franklintempleton.com/regulatory-fund-documents
Class Y  
Shareholder Report [Line Items]  
Fund Name Putnam Small Cap Growth Fund
Class Name Class Y
Trading Symbol PSYGX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Putnam Small Cap Growth Fund for the period July 1, 2023, to June 30, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.
Material Fund Change Notice [Text Block]
This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number (800) 225-1581
Additional Information Website https://www.franklintempleton.com/regulatory-fund-documents
Expenses [Text Block]
WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (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 Y
$107
0.96%
Expenses Paid, Amount $ 107
Expense Ratio, Percent 0.96%
Factors Affecting Performance [Text Block]
HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?
For the twelve months ended June 30, 2024, Class Y shares of Putnam Small Cap Growth Fund returned 22.47%. The Fund compares its performance to the Russell 2000 Growth Index, which returned 9.14% for the same period.
PERFORMANCE HIGHLIGHTS
Top contributors to performance:
Security selections outside of the benchmark, including:
↑
Camtek, a manufacturer of semiconductor inspection equipment
↑
Nova, a provider of process control systems used in semiconductor manufacturing
↑
EMCOR Group, a construction and facilities services provider for a range of businesses
Top detractors from performance:
↓
Overweight position in Axcelis Technologies, a semiconductor equipment company
↓
Overweight position in medical device company InMode
↓
Out-of-benchmark position in Iridium Communications, a global satellite communications company
Performance Past Does Not Indicate Future [Text] The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Line Graph [Table Text Block]
image
Average Annual Return [Table Text Block]
AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended June 30, 2024
 
1 Year
5 Year
10 Year
Class Y (without sales charge)
22.47
12.74
11.80
Class Y (with sales charge)
22.47
12.74
11.80
Russell 3000 Index
23.13
14.14
12.15
Russell 2000 Growth Index
9.14
6.17
7.39
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Updated Performance Information Location [Text Block]
For current month-end performance, please call Franklin Templeton at  (800) 225-1581 or visit https://www.franklintempleton.com/investments/options/mutual-funds.
Important data provider notices and terms available at  www.franklintempletondatasources.com.
Net Assets $ 2,020,349,001
Holdings Count | $ / shares 94 [11]
Advisory Fees Paid, Amount $ 10,178,534
Investment Company Portfolio Turnover 40.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2024)
Total Net Assets
$2,020,349,001
Total Number of Portfolio Holdings*
94
Total Management Fee Paid
$10,178,534
Portfolio Turnover Rate
40%
[11]
Holdings [Text Block]
image
 [12]
Material Fund Change [Text Block]
HOW HAS THE FUND CHANGED?
On May 31, 2023, Franklin Resources, Inc. (“Franklin Resources”) and Great-West Lifeco Inc., the parent company of Putnam U.S. Holdings I, LLC (“Putnam Holdings”), announced that they had entered into a definitive agreement for a subsidiary of Franklin Resources to acquire Putnam Holdings in a stock and cash transaction (the “Transaction”). The Transaction was completed on January 1, 2024. As part of the Transaction, your Fund’s investment advisor, Putnam Investment Management, LLC (“Putnam Management”), a wholly-owned subsidiary of Putnam Holdings, and your Fund’s sub-advisor, Putnam Investments Limited (“PIL”), an indirect, wholly-owned subsidiary of Putnam Holdings, became indirect, wholly-owned subsidiaries of Franklin Resources. In connection with the Transaction, shareholders of your Fund approved a new management contract with Putnam Management and a new sub-advisory contract with PIL. The new contracts are identical to the previous contracts, except for the effective dates, initial terms, updates to fund names as necessary to reflect previous name changes, and certain non-substantive changes.
Effective July 15, 2024, Franklin Advisers, Inc. (“Franklin Advisers”) was retained as a sub-adviser by Putnam Management for the Fund pursuant to a new subadvisory agreement between Franklin Advisers and Putnam Management. Both Putnam Management and Franklin Advisers are wholly-owned subsidiaries of Franklin Resources. Putnam Management will continue to serve as the Fund’s investment advisor and Putnam Investments Limited will continue to serve as a sub-advisor to the Fund.  
Effective June 30, 2024, the Fund’s portfolio managers are William Monroe and Tania Harsono.
This is a summary of certain changes to the Fund since July 1, 2023. For more complete information, you may review the Fund’s current prospectus and any applicable supplements at https://www.franklintempleton.com/regulatory-fund-documents  or upon request at  (800) 225-1581 or funddocuments@putnam.com.
Updated Prospectus Phone Number (800) 225-1581
Updated Prospectus Email Address funddocuments@putnam.com
Updated Prospectus Web Address https://www.franklintempleton.com/regulatory-fund-documentshttps://www.franklintempleton.com/regulatory-fund-documents
[1]
* Includes derivatives, if applicable.
[2]
Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time.
[3]
* Includes derivatives, if applicable.
[4]
Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time.
[5]
* Includes derivatives, if applicable.
[6]
Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time.
[7]
* Includes derivatives, if applicable.
[8]
Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time.
[9]
* Includes derivatives, if applicable.
[10]
Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time.
[11]
* Includes derivatives, if applicable.
[12]
Cash and Equivalents, if any, represent the market value weights of cash, derivatives, short-term securities, and other unclassified assets in the portfolio. Holdings and allocations may vary over time.