Shareholder Report, Line Graph (Details) 74200178300_Putnam International Small Cap Fund_Class C_TSR Annual {Class C} - USD ($) |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Aug. 31, 2025 |
Aug. 31, 2024 |
Aug. 31, 2023 |
Aug. 31, 2022 |
Aug. 31, 2021 |
Aug. 31, 2020 |
Aug. 31, 2019 |
Aug. 31, 2018 |
Aug. 31, 2017 |
Aug. 31, 2016 |
Aug. 31, 2026 |
|
| Class C | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class C (with sales charge) | ||||||||||
| Accumulated Value | $ 19,635 | $ 17,176 | $ 14,566 | $ 12,562 | $ 17,260 | $ 12,513 | $ 11,582 | $ 12,644 | $ 12,072 | $ 10,000 | $ 22,151 |
| MSCI All Country World ex-U.S. Index-NR [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI All Country World ex-U.S. Index-NR | ||||||||||
| Accumulated Value | 19,717 | 17,083 | 14,451 | 12,915 | 16,048 | 12,852 | 11,865 | 12,266 | 11,888 | 10,000 | $ 25,109 |
| S&P Developed ex-U.S. SmallCap Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P Developed ex-U.S. SmallCap Index | ||||||||||
| Accumulated Value | $ 19,183 | $ 16,119 | $ 14,244 | $ 12,871 | $ 17,424 | $ 13,171 | $ 11,735 | $ 12,974 | $ 12,064 | $ 10,000 | $ 22,821 |