v3.25.0.1
Expense Example - FidelityAdvisorConservativeIncomeMunicipalBondFund-ClassAIZ-PRO - FidelityAdvisorConservativeIncomeMunicipalBondFund-ClassAIZ-PRO - Fidelity Conservative Income Municipal Bond Fund
Mar. 01, 2025
USD ($)
Fidelity Advisor Conservative Income Municipal Bond Fund - Class Z  
Expense Example:  
1 year $ 20
3 years 74
5 years 134
10 years 311
Fidelity Advisor Conservative Income Municipal Bond Fund - Class A  
Expense Example:  
1 year 195
3 years 292
5 years 398
10 years 708
Fidelity Advisor Conservative Income Municipal Bond Fund - Class I  
Expense Example:  
1 year 26
3 years 99
5 years 183
10 years $ 430