v3.26.1
Shareholder Fees - Natixis Funds Trust II
Dec. 31, 2025
Loomis Sayles Strategic Alpha Fund | Classs A  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 4.25%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% [1]
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Loomis Sayles Strategic Alpha Fund | Classs 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 of Offering Price) 1.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Loomis Sayles Strategic Alpha Fund | Classs N  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Loomis Sayles Strategic Alpha Fund | Classs Y  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Natixis Oakmark Fund | Classs 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 of Offering Price) 0.00% [2]
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Natixis Oakmark Fund | Classs 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 of Offering Price) 1.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Natixis Oakmark Fund | Classs N  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Natixis Oakmark Fund | Classs Y  
Prospectus [Line Items]  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Vaughan Nelson Mid Cap Fund | Classs 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% [3]
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Vaughan Nelson Mid Cap Fund | Classs 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%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Vaughan Nelson Mid Cap Fund | Classs Y  
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%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
Vaughan Nelson Mid Cap Fund | Classs N  
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%
Redemption Fee (as a percentage of Amount Redeemed) 0.00%
[1]
* A 1.00% contingent deferred sales charge (“CDSC”) may apply to certain purchases of Class A shares of $1,000,000 or more that are redeemed within eighteen months of the date of purchase.
[2]
* A 1.00% contingent deferred sales charge (“CDSC”) may apply to certain purchases of Class A shares of $1,000,000 or more that are redeemed within eighteen months of the date of purchase.
[3]
1  A 1.00% contingent deferred sales charge (“CDSC”) may apply to certain purchases of Class A shares of $1,000,000 or more that are redeemed within eighteen months of the date of purchase.