Prospectus 1 [Member] Investment Objectives and Goals - Prospectus 1 - Putnam Mortgage Opportunities Fund |
May 31, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | Fund summary |
| Objective [Heading] | Goal |
| Objective, Primary [Text Block] | The fund seeks to maximize total return consistent with what the Investment Manager (as defined below) believes to be prudent risk. Total return is composed of capital appreciation and income.
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