v3.25.3
Shareholder Report, Holdings (Details)
Aug. 31, 2025
Fidelity Maryland Municipal Income Fund | RS0Member  
Holdings [Line Items]  
Percent of Net Asset Value 35.60%
Fidelity Maryland Municipal Income Fund | RS1Member  
Holdings [Line Items]  
Percent of Net Asset Value 20.00%
Fidelity Maryland Municipal Income Fund | RS2Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
Fidelity Maryland Municipal Income Fund | RS3Member  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
Fidelity Maryland Municipal Income Fund | RS4Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
Fidelity Maryland Municipal Income Fund | RS5Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
Fidelity Maryland Municipal Income Fund | RS6Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
Fidelity Maryland Municipal Income Fund | QDAAAMember  
Holdings [Line Items]  
Percent of Net Asset Value 24.70%
Fidelity Maryland Municipal Income Fund | QDAAMember  
Holdings [Line Items]  
Percent of Net Asset Value 31.20%
Fidelity Maryland Municipal Income Fund | QDAMember  
Holdings [Line Items]  
Percent of Net Asset Value 20.20%
Fidelity Maryland Municipal Income Fund | QDBBBMember  
Holdings [Line Items]  
Percent of Net Asset Value 14.20%
Fidelity Maryland Municipal Income Fund | QDBMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
Fidelity Maryland Municipal Income Fund | QDNotRatedMember  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
Fidelity Maryland Municipal Income Fund | QDShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
Fidelity Arizona Municipal Income Fund | RS0Member  
Holdings [Line Items]  
Percent of Net Asset Value 29.50%
Fidelity Arizona Municipal Income Fund | RS1Member  
Holdings [Line Items]  
Percent of Net Asset Value 20.80%
Fidelity Arizona Municipal Income Fund | RS2Member  
Holdings [Line Items]  
Percent of Net Asset Value 15.50%
Fidelity Arizona Municipal Income Fund | RS3Member  
Holdings [Line Items]  
Percent of Net Asset Value 9.40%
Fidelity Arizona Municipal Income Fund | RS4Member  
Holdings [Line Items]  
Percent of Net Asset Value 8.20%
Fidelity Arizona Municipal Income Fund | RS5Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
Fidelity Arizona Municipal Income Fund | RS6Member  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
Fidelity Arizona Municipal Income Fund | QDAAAMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
Fidelity Arizona Municipal Income Fund | QDAAMember  
Holdings [Line Items]  
Percent of Net Asset Value 60.30%
Fidelity Arizona Municipal Income Fund | QDAMember  
Holdings [Line Items]  
Percent of Net Asset Value 22.60%
Fidelity Arizona Municipal Income Fund | QDBBBMember  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
Fidelity Arizona Municipal Income Fund | QDBMember  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
Fidelity Arizona Municipal Income Fund | QDNotRatedMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
Fidelity Arizona Municipal Income Fund | QDShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%