v3.26.3
S000000606 [Member] Shareholder Fees - Nuveen Small Cap Value Opportunities Fund
Jun. 30, 2026
USD ($)
Nuveen Small Cap Value Opportunities Fund - Class A  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.75%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
Maximum Account Fee $ 15
Nuveen Small Cap Value Opportunities Fund - Class C  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage) 1.00% [1]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
Maximum Account Fee $ 15
Nuveen Small Cap Value Opportunities Fund - Class I  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
Maximum Account Fee $ 0
Class R6  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage) 0.00% [1]
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) 0.00%
Exchange Fee (as a percentage of Amount Redeemed) 0.00%
Maximum Account Fee $ 0
[1]  The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.