v3.26.1
Expense Example, No Redemption - Putnam Floating Rate Income Fund - Class C
Feb. 28, 2026
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 176
Expense Example, No Redemption, 3 Years 546
Expense Example, No Redemption, 5 Years 940
Expense Example, No Redemption, 10 Years $ 1,844