v3.26.3
S000005558 [Member] Annual Fund Operating Expenses - Nuveen Minnesota Intermediate Municipal Bond Fund
May 31, 2026
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.49%
Distribution and Service (12b-1) Fees 0.20%
Component1 Other Expenses 0.01% [1]
Component2 Other Expenses 0.10%
Expenses (as a percentage of Assets) 0.80%
Class I  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.49%
Distribution and Service (12b-1) Fees 0.00%
Component1 Other Expenses 0.01% [1]
Component2 Other Expenses 0.10%
Expenses (as a percentage of Assets) 0.60%
Nuveen Minnesota Intermediate Municipal Bond Fund Class C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.49%
Distribution and Service (12b-1) Fees 1.00%
Component1 Other Expenses 0.01% [1]
Component2 Other Expenses 0.10%
Expenses (as a percentage of Assets) 1.60%
[1] Includes interest expense and fees paid on Fund borrowings and/or interest and related expenses from inverse floaters.