v3.26.1
Shareholder Report, Holdings (Details)
May 31, 2026
Fidelity New Jersey Municipal Income Fund | RS0Member  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
Fidelity New Jersey Municipal Income Fund | RS1Member  
Holdings [Line Items]  
Percent of Net Asset Value 23.10%
Fidelity New Jersey Municipal Income Fund | RS2Member  
Holdings [Line Items]  
Percent of Net Asset Value 16.00%
Fidelity New Jersey Municipal Income Fund | RS3Member  
Holdings [Line Items]  
Percent of Net Asset Value 7.40%
Fidelity New Jersey Municipal Income Fund | RS4Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
Fidelity New Jersey Municipal Income Fund | RS5Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.90%
Fidelity New Jersey Municipal Income Fund | QDAAAMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
Fidelity New Jersey Municipal Income Fund | QDAAMember  
Holdings [Line Items]  
Percent of Net Asset Value 35.20%
Fidelity New Jersey Municipal Income Fund | QDAMember  
Holdings [Line Items]  
Percent of Net Asset Value 45.60%
Fidelity New Jersey Municipal Income Fund | QDBBBMember  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
Fidelity New Jersey Municipal Income Fund | QDBBMember  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
Fidelity New Jersey Municipal Income Fund | QDNotRatedMember  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
Fidelity New Jersey Municipal Income Fund | QDShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Fidelity Connecticut Municipal Income Fund | RS0Member  
Holdings [Line Items]  
Percent of Net Asset Value 43.30%
Fidelity Connecticut Municipal Income Fund | RS1Member  
Holdings [Line Items]  
Percent of Net Asset Value 16.90%
Fidelity Connecticut Municipal Income Fund | RS2Member  
Holdings [Line Items]  
Percent of Net Asset Value 12.60%
Fidelity Connecticut Municipal Income Fund | RS3Member  
Holdings [Line Items]  
Percent of Net Asset Value 11.10%
Fidelity Connecticut Municipal Income Fund | RS4Member  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
Fidelity Connecticut Municipal Income Fund | RS5Member  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
Fidelity Connecticut Municipal Income Fund | QDAAAMember  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
Fidelity Connecticut Municipal Income Fund | QDAAMember  
Holdings [Line Items]  
Percent of Net Asset Value 47.60%
Fidelity Connecticut Municipal Income Fund | QDAMember  
Holdings [Line Items]  
Percent of Net Asset Value 24.10%
Fidelity Connecticut Municipal Income Fund | QDBBBMember  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Fidelity Connecticut Municipal Income Fund | QDBBMember  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
Fidelity Connecticut Municipal Income Fund | QDNotRatedMember  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
Fidelity Connecticut Municipal Income Fund | QDShortTermInvestmentsandNetOtherAssetsLiabilitiesMember  
Holdings [Line Items]  
Percent of Net Asset Value 4.40%