Expense Example - FidelityEmergingMarketsDiscoveryFundFidelityTotalEmergingMarketsFund-RetailComboPRO - FidelityEmergingMarketsDiscoveryFundFidelityTotalEmergingMarketsFund-RetailComboPRO - Fidelity Emerging Markets Discovery Fund - Fidelity Emerging Markets Discovery Fund	Dec. 30, 2023 USD ($)
Expense Example:
1 year	$ 116
3 years	362
5 years	628
10 years	$ 1,386

Expense Example - FidelityEmergingMarketsDiscoveryFundFidelityTotalEmergingMarketsFund-RetailComboPRO - FidelityEmergingMarketsDiscoveryFundFidelityTotalEmergingMarketsFund-RetailComboPRO - Fidelity Emerging Markets Discovery Fund - Fidelity Emerging Markets Discovery Fund

Dec. 30, 2023

USD ($)

1 year

$ 116

3 years

362

5 years

628

10 years

$ 1,386