v3.26.3
Expense Example, No Redemption - Thornburg International Growth Fund - Class C
Oct. 01, 2026
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 236
Expense Example, No Redemption, 3 Years 781
Expense Example, No Redemption, 5 Years 1,352
Expense Example, No Redemption, 10 Years $ 2,905