Expense Example - FidelitySAISustainableInternationalEquityEmergingMarketsEquityFunds-ComboPRO - FidelitySAISustainableInternationalEquityEmergingMarketsEquityFunds-ComboPRO - Fidelity SAI Sustainable International Equity Fund - Fidelity SAI Sustainable International Equity Fund	Dec. 30, 2022 USD ($)
Expense Example:
1 year	$ 77
3 years	1,112
5 years	2,309
10 years	$ 5,221