Investment Objectives and Goals |
Apr. 30, 2026 |
|---|---|
| MFS Corporate Bond Fund | |
| Prospectus [Line Items] | |
| Risk/Return [Heading] | MFS® Corporate Bond Fund Summary of Key Information |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The fund’s investment objective is to seek total return with an emphasis on current income, but also considering capital appreciation. |
| MFS Limited Maturity Fund | |
| Prospectus [Line Items] | |
| Risk/Return [Heading] | MFS® Limited Maturity Fund Summary of Key Information |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The fund’s investment objective is to seek total return with an emphasis on current income, but also considering capital preservation. |
| MFS Municipal Limited Maturity Fund | |
| Prospectus [Line Items] | |
| Risk/Return [Heading] | MFS® Municipal Limited Maturity Fund Summary of Key Information |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The fund’s investment objective is to seek total return with an emphasis on income exempt from U.S. federal income tax, but also considering capital preservation. |
| MFS Total Return Bond Fund | |
| Prospectus [Line Items] | |
| Risk/Return [Heading] | MFS® Total Return Bond Fund Summary of Key Information |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The fund’s investment objective is to seek total return with an emphasis on current income, but also considering capital appreciation. |