| **Average Annual Total Returns - TargetedInternationalFunds-RetailComboPRO - TargetedInternationalFunds-RetailComboPRO - Fidelity Nordic Fund** | Dec. 30, 2024 |
|-------------------------------------------------------------------------------------------------------------------------------------------------|---------------|
| Fidelity Nordic Fund | Return Before Taxes                                                                                                      |          |
| **Average Annual Return:**                                                                                                                      |          |
| Past 1 year                                                                                                                                     | 20.85%        |
| Past 5 years                                                                                                                                    | 13.08%        |
| Past 10 years                                                                                                                                   | 7.66%         |
| Fidelity Nordic Fund | After Taxes on Distributions                                                                                             |          |
| **Average Annual Return:**                                                                                                                      |          |
| Past 1 year                                                                                                                                     | 20.84%        |
| Past 5 years                                                                                                                                    | 11.78%        |
| Past 10 years                                                                                                                                   | 6.63%         |
| Fidelity Nordic Fund | After Taxes on Distributions and Sales                                                                                   |          |
| **Average Annual Return:**                                                                                                                      |          |
| Past 1 year                                                                                                                                     | 12.35%        |
| Past 5 years                                                                                                                                    | 10.23%        |
| Past 10 years                                                                                                                                   | 5.97%         |
| FT126                                                                                                                                           |          |
| **Average Annual Return:**                                                                                                                      |          |
| Past 1 year                                                                                                                                     | 21.29%        |
| Past 5 years                                                                                                                                    | 13.24%        |
| Past 10 years                                                                                                                                   | 7.25%         |

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