v3.26.1
S000053353 [Member] Expense Example - Loomis Sayles Global Growth Fund
Nov. 30, 2025
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 690
Expense Example, with Redemption, 3 Years 960
Expense Example, with Redemption, 5 Years 1,250
Expense Example, with Redemption, 10 Years 2,074
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 298
Expense Example, with Redemption, 3 Years 639
Expense Example, with Redemption, 5 Years 1,107
Expense Example, with Redemption, 10 Years 2,208
Class Y  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 97
Expense Example, with Redemption, 3 Years 331
Expense Example, with Redemption, 5 Years 583
Expense Example, with Redemption, 10 Years 1,306
Class N  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 92
Expense Example, with Redemption, 3 Years 311
Expense Example, with Redemption, 5 Years 547
Expense Example, with Redemption, 10 Years $ 1,226