v3.26.3
S000000606 [Member] Expense Example, No Redemption - Nuveen Small Cap Value Opportunities Fund
Jun. 30, 2026
USD ($)
Nuveen Small Cap Value Opportunities Fund - Class A  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 690
Expense Example, No Redemption, 3 Years 958
Expense Example, No Redemption, 5 Years 1,261
Expense Example, No Redemption, 10 Years 2,120
Nuveen Small Cap Value Opportunities Fund - Class C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 197
Expense Example, No Redemption, 3 Years 636
Expense Example, No Redemption, 5 Years 1,117
Expense Example, No Redemption, 10 Years 2,444
Nuveen Small Cap Value Opportunities Fund - Class I  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 97
Expense Example, No Redemption, 3 Years 327
Expense Example, No Redemption, 5 Years 591
Expense Example, No Redemption, 10 Years 1,346
Class R6  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 73
Expense Example, No Redemption, 3 Years 252
Expense Example, No Redemption, 5 Years 462
Expense Example, No Redemption, 10 Years $ 1,066