v3.25.2
S000005562 [Member] Expense Example - Nuveen Oregon Intermediate Municipal Bond Fund
May 31, 2025
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 382
Expense Example, with Redemption, 3 Years 557
Expense Example, with Redemption, 5 Years 747
Expense Example, with Redemption, 10 Years 1,295
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 64
Expense Example, with Redemption, 3 Years 202
Expense Example, with Redemption, 5 Years 351
Expense Example, with Redemption, 10 Years 786
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 166
Expense Example, with Redemption, 3 Years 514
Expense Example, with Redemption, 5 Years 887
Expense Example, with Redemption, 10 Years $ 1,933